TM 11-6625-3198
TM 11-6625-3198-12
TECHNICAL MANUAL
OPERATOR’S AND UNIT MAINTENANCE MANUAL
SIGNAL GENERATOR:
SG-01288/G
(NSN 6625-01-276-9421) (EIC: KIC)
WARNING – This document contains technical data whose export is restricted by the Arms
Export Control Act (Title 22, U. S. C., Sec 2751 et seq) or the Export Administration Act 1979, as
amended, Title 50, U.S.C., App. 2401 et seq.. Violations of these export laws are subject to
severe criminal penalties. Disseminate in accordance with provisions of DOD Directive 5230.25.
DISTRIBUTION STATEMENT D – Distribution authorized to Department of Defense and DoD
contractors only to protect critical technical data on systems or hardware. This determination was
made Oct 1986. Other requests shall be referred to: Program Manager, TMDE, ATTN: SFAECS-FT-T-TEMOD, Redstone Arsenal, AL 35898-5000.
DESTRUCTION NOTICE – Destroy by any method that will prevent disclosure of contents or
reconstruction of the document.
HEADQUARTERS, DEPARTMENT OF THE ARMY
1 APRIL 1989
TM 11-6625-3198-12
SAFETY STEPS TO FOLLOW IF SOMEONE IS
THE VICTIM OF ELECTRICAL SHOCK
DO NOT TRY TO PULL OR GRAB THE INDIVIDUAL
IF POSSIBLE, TURN OFF THE ELECTRICAL POWER
IF YOU CANNOT TURN OFF THE ELECTRICAL POWER,
PULL, PUSH, OR LIFT THE PERSON TO SAFETY
USING A DRY WOODEN POLE OR A DRY ROPE OR
SOME OTHER INSULATING MATERIAL
SEND FOR HELP AS SOON AS POSSIBLE
AFTER THE INJURED PERSON IS FREE OF CONTACT
WITH THE SOURCE OF ELECTRICAL SHOCK, M O V E
THE PERSON A SHORT DISTANCE AWAY AND
IMMEDIATELY START ARTIFICIAL RESPIRATION
A
TM 11-6625-3198-12
WARNING
HIGH VOLTAGE
is used in the operation of this equipment
D E A T H ON C O N T A C T
may result if personnel fail to observe safety precautions
Never work on electronic equipment unless there is another person nearby who is familiar with the operation
and hazards of the equipment and who is competent in administering first aid. When technicians are aided by
operators, they must warn them about dangerous areas.
Whenever possible, the power supply to the equipment must be shut off before beginning work on the
equipment. Take particular care to ground every capacitor likely to hold a dangerous potential. When working
inside the equipment, after the power has been turned off, always ground every part before touching it.
Be careful not to contact high-voltage connections of 115-volt ac input when installing or operating this
equipment.
Whenever the nature of the operation permits, keep one hand away from the equipment to reduce the
hazard of current flowing through vital organs of the body.
Do not be misled by the term "LOW VOLTAGE". Potentials as low as 50
volts may cause death under adverse conditions.
For Artificial Respiration refer to FM 4-25.11.
B
Change 3
TM 11-6625-3198-12
C3
Headquarters
Department of the Army
Washington, D.C., 24 February 2006
CHANGE
No.
3
OPERATOR’S AND UNIT MAINTENANCE MANUAL
FOR
SIGNAL GENERATOR
SG-1288/G
(NSN 6625-01-276-9421) (EIC: KIC)
HAZARDOUS MATERIAL INFORMATION – This document has been reviewed for the presence of solvents
used as cleaning solutions containing hazardous materials defined by the EPCRA 302 and 313 lists by the AMCOM G-4
(Logistics) Environmental Division. As of the base document through Change 1, dated 1 April 1989, all references to
solvents containing hazardous materials have been removed from this document by substitution with non-hazardous or
less hazardous materials where possible.
OZONE DEPLETING CHEMICAL INFORMATION – This document has been reviewed for the presence of
Class I ozone depleting chemicals by AMCOM G-4 (Logistics) Environmental Division. As of the base document through
Change 1, dated 1 April 1989, all references to Class I ozone depleting chemicals have been removed from this document
by substitution with chemicals that do not cause atmospheric ozone depletion.
DISTRIBUTION STATEMENT D – Distribution authorized to Department of Defense and DoD
contractors only to protect critical technical data on systems or hardware. This determination was
made Oct 1986. Other requests shall be referred to: Program Manager, TMDE, ATTN: SFAECS-T-TEMOD, Redstone Arsenal, AL 35898-5000.
WARNING – This document contains technical data whose export is restricted by the Arms
Export Control Act (Title 22, U. S. C., Sec 2751 et seq) or the Export Administration Act 1979, as
amended, Title 50, U.S.C., App. 2401 et seq. Violations of these export laws are subject to
severe criminal penalties. Disseminate in accordance with provisions of DOD Directive 5230.25.
DESTRUCTION NOTICE – Destroy by any method that will prevent disclosure of contents or
reconstruction of the document.
TM 11-6625-3198-12 dated 1 April 1989, is changed as follows:
1. Remove old pages and insert new pages as indicated below. New or changed material is
indicated by a vertical bar in the outer margin of the page.
Remove Pages
A, B
C/(D Blank)
i, ii
1-1, 1-2
3-1, 3-2
A-1/(A-2 blank)
Insert Pages
A, B
C/(D Blank)
i, ii
1-1, 1-2
3-1, 3-2
A-1/(A-2 blank)
2. File this change sheet in front of the publication for reference purposes.
TM 11-6625-3198-12
C3
By Order of the Secretary of the Army:
PETER J. SCHOOMAKER
General, United States Army
Chief of Staff
Official:
SANDRA R. RILEY
Administrative Assistant to the
Secretary of the Army
0601705
Distribution:
To be distributed in accordance with the initial distribution number (IDN) 368094,
requirements for TM 11-6625-3198-12.
TM 11-6625-3198-12
C2
Headquarters
Department of the Army
Washington, D.C., 15 September 2005
CHANGE
No.
2
OPERATOR’S AND UNIT MAINTENANCE MANUAL
FOR
SIGNAL GENERATOR:
SG-01288/G
(NSN 6625-01-276-9421)
(EIC: KIC)
DISTRIBUTION STATEMENT D – Distribution authorized to Department of Defense and DoD
contractors only to protect critical technical data on systems or hardware. This determination was
made Oct 1986. Other requests shall be referred to: Program Manager, TMDE, ATTN: SFAECS-T-TEMOD, Redstone Arsenal, AL 35898-5000.
WARNING – This document contains technical data whose export is restricted by the Arms
Export Control Act (Title 22, U. S. C., Sec 2751 et seq) or the Export Administration Act 1979, as
amended, Title 50, U.S.C., App. 2401 et seq.. Violations of these export laws are subject to
severe criminal penalties. Disseminate in accordance with provisions of DOD Directive 5230.25.
DESTRUCTION NOTICE – Destroy by any method that will prevent disclosure of contents or
reconstruction of the document.
TM 11-6625-3198-12, dated 1 April 1989 is changed as follows:
1. Remove old pages and insert new pages as indicated below. New or changed material is
indicated by a vertical bar in the outer margin of the page.
Remove Pages
2-13, 2-14
Cover Page
DA Forms 2028-2
Insert Pages
C/(D blank)
2-13, 2-14
Cover Page
DA Forms 2028
2. File this change sheet in front of the publication for reference purposes.
TM 11-6625-3198-12
C2
By Order of the Secretary of the Army:
PETER J. SCHOOMAKER
General, United States Army
Chief of Staff
Official:
SANDRA R. RILEY
Administrative Assistant to the
Secretary of the Army
0524904
Distribution:
To be distributed in accordance with the initial distribution number (IDN) 368094,
requirements for TM 11-6625-3198-12.
TM 11-6625-3198-12
C1
HEADQUARTERS
DEPARTMENT OF THE ARMY
Washington, DC, 1 December 1992
Change
No. 1
Operator’s and Unit
Maintenance Manual
SIGNAL GENERATOR SG-1288/G
(NSN 6625-01-276-9421 (EIC: N/A)
TM 11-6625-3198-12, 1 April 1989, is changed as follows:
1. Remove old pages and insert new pages as indicated below. New or changed material is indicated by a vertical bar
in the margin of the page. Added or revised illustrations are indicated by a bar adjacent to the identification number
or by a miniature pointing hand.
Remove pages
Insert pages
1-5 and 1-6
1-5 and 1-6
2. File this change sheet in front of the manual for reference purposes.
Distribution authorized to the Department of Department of Defense and DOD contractors only for official use
or for administrative or operational purposes. This determination was made on 1 August 1988.
Other requests for this document will be referred to Commander, US Army CommunicationsElectronics Command and Fort Monmouth, ATTN: AMSEL-LC-LM-LT, Fort Monmouth,
New Jersey 07703-5007.
DESTRUCTION NOTICE - Destroy by any method that will prevent disclosure of contents or
reconstruction of the document.
By Order of the Secretary of the Army:
GORDON R. SULLIVAN
General, United States Army
Chief of Staff
Official:
MILTON H. HAMILTON
Administrative Assistant to the
Secretary of the Army
03320
Distribution:
To be distributed in accordance with DA Form 12-36-E, block 8094,
requirements for TM 11-6625-3198-12.
TM 11-6625-3198-12
INSERT LATEST CHANGED PAGES. DESTROY SUPERSEDED PAGES.
LIST OF EFFECTIVE PAGES
NOTE
ON CHANGED PAGES, THE PORTION OF THE TEXT AFFECTED BY THE LATEST CHANGE IS INDICATED BY A
VERTICAL LINE OR OTHER CHANGE SYMBOL IN THE OUTER MARGIN OF THE PAGE.
Date of issue for original and changed pages are:
Original 0
1 April 1989
Change 1
1 December 1992
Change 2
15 September 2005
Change 3
24 February 2006
Total number of pages in this publication is 92 consisting of the following:
Page
*Change
No.
No.
Cover ........................................ 2
A ................................................ 0
B ................................................ 3
C / (D blank)…… ………………. 3
i ................................................. 3
ii, iii............................................. 0
1-1, 1-2 ...................................... 3
1-3, 1-4 ...................................... 0
1-5.............................................. 1
1-6 thru 1-10 .............................. 0
2-1 thru 2-13 .............................. 0
2-14............................................ 2
2-15 thru 2-23 / (2-24 blank)...... 0
3-1.............................................. 0
3-2.............................................. 3
3-3 thru 3-8 ................................ 0
A-1 / (A-2 blank) ........................ 3
B-1 thru B-7 / (B-8 blank)........... 2
C-1, C-2 ..................................... 0
D-1 / (D-2 blank) ........................ 0
E-1 / (E-2 blank) ........................ 0
F-1 thru F-7 / (F-8 blank) ........... 0
Index-1 thru Index-2 .................. 0
Index-3 / (Index-4 blank)............ 0
* Zero in this column indicates an original page.
Change 3 C/(D BLANK)
TM 11-6625-3198-12
Technical Manual
No. 11-6625-3198-12
Headquarters
Department of the Army
Washington, D.C., 1 April 1989
OPERATOR’S AND UNIT MAINTENANCE MANUAL
FOR
SIGNAL GENERATOR SG-1288/G
(NSN 6625-01-276-9421) (EIC: KIC)
REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS
You can help improve this manual. If you find any mistakes or if you know of a way to improve the
procedures, please let us know. Mail your letter or DA Form 2028 (Recommended Changes to
Publications and Blank Forms) directly to: Commander, U. S. Army Aviation and Missile Command,
AMSAM-MMC-MA-NP, Redstone Arsenal, AL 35898-5000. A reply will be furnished to you. You may
also provide DA Form 2028 information to AMCOM via email, fax or the World Wide Web. Our fax
number is: DSN 788-6546 or Commercial 256-842-6546. Our email address is: 2028@redstone.army.mil.
Instructions for sending an electronic 2028 may be found at the back of this manual immediately preceding
the hardcopy 2028. For the World Wide Web use: https://amcom2028.redstone.army.mil.
HAZARDOUS MATERIAL INFORMATION
This document has been reviewed for the presence of solvents used as cleaning solutions containing hazardous materials
defined by the EPCRA 302 and 313 lists by the AMCOM G-4 (Logistics) Environmental Division. As of the base
document through Change 1, dated 1 April 1989, all references to solvents containing hazardous materials have been
removed from this document by substitution with non-hazardous or less hazardous materials where possible.
OZONE DEPLETING CHEMICAL INFORMATION
This document has been reviewed for the presence of Class I ozone depleting chemicals by AMCOM G-4 (Logistics)
Environmental Division. As of the base document through Change 1, dated 1 April 1989, all references to Class I ozone
depleting chemicals have been removed from this document by substitution with chemicals that do not cause atmospheric
ozone depletion.
WARNING – This document contains technical data whose export is restricted by the Arms
Export Control Act (Title 22, U. S. C., Sec 2751 et seq) or the Export Administration Act 1979, as
amended, Title 50, U.S.C., App. 2401 et seq.. Violations of these export laws are subject to
severe criminal penalties. Disseminate in accordance with provisions of DOD Directive 5230.25.
DISTRIBUTION STATEMENT D – Distribution authorized to Department of Defense and DoD
contractors only to protect critical technical data on systems or hardware. This determination was
made Oct 1986. Other requests shall be referred to: Program Manager, TMDE, ATTN: SFAECS-FT-T-TEMOD, Redstone Arsenal, AL 35898-5000.
DESTRUCTION NOTICE – Destroy by any method that will prevent disclosure of contents or
reconstruction of the document.
Change 3
i
TM 11-6625-3198-12
TABLE OF CONTENTS
Chapter
Section
Chapter
Section
Chapter
Section
APPENDIX
ii
1.
HOW TO USE THIS MANUAL..................................................................
INTRODUCTION........................................................................................
Page
iii
1-1
I.
General Information....................................................................................
1-1
II.
Equipment Description...............................................................................
1-2
III.
Technical Principals of Operation...............................................................
1-9
2.
OPERATING INSTRUCTIONS..................................................................
2-1
I.
Description and Use of Operators Controls Indicators and Connectors.....
2-1
II.
Operator Preventive Maintenance Checks and Services (PMCS)..............
2-12
III.
Operation Under Usual Conditions.............................................................
2-14
3.
UNIT MAINTENANCE................................................................................
3-1
I.
Repair Parts, Special Tools, TMDE, and Support Equipment....................
3-1
II.
Service Upon Receipt.................................................................................
3-1
III.
Troubleshooting..........................................................................................
3-3
Symptom Index..........................................................................................
3-3
IV.
Maintenance Procedures...........................................................................
3-6
V.
Preparation for Storage or Shipment..........................................................
3-8
A.
REFERENCE.............................................................................................
A-1
B.
MAINTENANCE ALLOCATION CHART.....................................................
B-1
C.
COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS LIST.............
C-1
D.
ADDITIONAL AUTHORIZATION LIST.......................................................
D-1
E.
EXPENDABLE SUPPLIES AND MATERIALS LIST..................................
E-1
F.
REMOTE OPERATION..............................................................................
F-1
SUBJECT INDEX.......................................................................................
INDEX-1
TM 11-6625-3198-12
HOW TO USE THIS MANUAL
This manual tells about the Signal Generator SG-1288/G and contains
instructions about how to use it during maintenance on other electronic
equipment.
The technical manual for the electronic equipment being maintained
will tell where to make certain connections and when to use various
accessories which are part of the SG-1288/G.
When first receiving the SG-1288/G, start at the front of the manual
and go all the way through to the back. Become familiar with every part
of the manual and the SG-1288/G.
This manual has an edge index which will help find specific
information in a hurry, Simply spread the pages on the right edge of the
manual until the printed blocks can be seen. Open the manual where the
block on the edge of the page lines up with the selected topic printed on
the front cover block.
iii
TM 11-6625-3198-12
Figure 1-1. Signal Generator SG-1288/G.
1-0
CE10D001
TM 11-6625-3198-12
CHAPTER 1
INTRODUCTION
Para Page
Administrative Storage .................................................................................
Consolidated Index of Army Publications and Blank Forms........................
Destruction of Army Electronics Materiel to Prevent Enemy Use
Equipment Characteristics, Capabilities, and Features ...............................
Equipment Data ...........................................................................................
General Functional Description ....................................................................
List of Abbreviations .....................................................................................
Maintenance Forms, Records, and Reports ................................................
Nomenclature Cross-Reference List ............................................................
Reporting Equipment Improvement Recommendations (EIR) ....................
Scope ...........................................................................................................
Warranty information ....................................................................................
1-4
1-2
1-5
1-10
1-11
1-12
1-9
1-3
1-8
1-6
1-1
1-7
1-1
1-1
1-1
1-2
1-3
1-9
1-2
1-1
1-2
1-1
1-1
1-2
Section I. GENERAL INFORMATION
1-1. SCOPE.
a. Type of Manual: Operator's and Unit Maintenance Manual.
b. Equipment Name and Model Number: Signal Generator SG-1288/G
c. Purpose of Equipment: The Signal Generator is designed to provide a precision source of sine, triangle,
and variable symmetry (ramp and pulse) waveforms for use in the installation and maintenance of radio
receivers, transmitters, and associated electronic equipment.
1-2. CONSOLIDATED INDEX OF ARMY PUBLICATIONS AND BLANK FORMS.
Refer to the latest issue of DA Pam 25-30 to determine whether there are new editions, changes, or additional
publications pertaining to the equipment.
1-3. MAINTENANCE FORMS, RECORDS, AND REPORTS.
a. Reports of Maintenance and Unsatisfactory Equipment. Department of the Army forms and procedures
used for equipment maintenance will be those prescribed by DA Pam 750-8.
b. Report of Item and Packaging Deficiencies. Fill out and forward SF 364 (Report of Discrepancy) (ROD)
as prescribed in AR 735-11-2/DLAR 4140.55/NAVMATINST 4355.18/AFR400-54/MCO 4430.3J.
c. Transportation Discrepancy Report (TDR)(SF 361). Fill out and forward Transportation Discrepancy
Report (TDR)(SF 361) as prescribed in DA Pam 25-30/NAVSUPINST 4610.33C/AFR 75-18/MCO P4610.19D
DLAR 4500.15.
1-4. ADMINISTRATIVE STORAGE.
Administrative storage of equipment issued to and used by Army activities will have preventive maintenance
performed in accordance with the PMCS charts before storing. When removing the equipment from
administrative storage, the PMCS should be performed to assure operational readiness. Disassembly and
repacking of equipment for shipment or limited storage are covered in paragraph 3-9.
1-5. DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY USE.
Destruction of Army materiel to prevent enemy use is described in TM 750-244-2.
Change 3
1-1
TM 11-6625-3198-12
1-6. REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIR).
If your Signal Generator SG-288/G needs improvement, let us know. Send us an EIR. You, the user, are the
only one who can tell us what you don’t like about your equipment. Let us know why you don’t like the design
or performance. Put it on an SF 368 (Product Quality Deficiency Report). Mail it to us at: Commander, U.S.
Army Aviation and Missile Command, ANSAM-MMC-MA-NM, Redstone Arsenal, AL. 35898-5000. We’ll send
you a reply.
1-7. WARRANTY INFORMATION
The Signal Generator is warranted by Wavetek San Diego for one year. Warranty starts on the date of
shipment to the original buyer. Report all defects in material or workmanship to your supervisor who will take
appropriate action.
1-8. NOMENCLATURE CROSS-REFERENCE LIST.
Common names will be used when the Signal Generator SG-1288/G is mentioned in this manual.
NOTE
Official nomenclature must be used when filling our report forms or
looking up technical manuals.
Common Name
Official Nomenclature
Signal Generator
Signal Generator SG-1288/G
SG-1288/G
Signal Generator SG-1288/G
1-9. LIST OF ABBREVIATIONS.
This list identifies abbreviations and descriptions that are used in this manual.
dBc
dBm
fc
fm
GPIB
VCF
VFD
dB relative to carrier
dB relative to 1 milliwatt
carrier frequency
modulating frequency
General Purpose Interface Bus
Voltage Controlled Frequency
Vacuum Fluorescent Display
Section II. EQUIPMENT DESCRIPTION
1-10. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES.
a. CHARACTERISTICS.
• Allows for repair and testing of:
Communication receivers and transmitters.
Video Systems.
Servo Systems
Amplifiers.
Oscilloscopes.
Analyzers.
• Designed for bench top use.
1-2
Change 3
TM 11-6625-3198-12
b. CAPABILITIES AND FEATURES.
●
Pushbutton control allows for easy operation of equipment.
●
Indicator lights on front panel for constant equipment status.
●
Large 16 character (14 segments/character) display for all parameters.
•
Programmable
Sine,
Triangle,
Square,
and
dc
outputs.
●
Variable symmetry provides pulse and ramp waveforms.
●
Balanced and unbalanced outputs.
Ž
Built-in
fault
analysis
programs
with
extensive
●
Battery backup for saving system setups.
●
Programmed interface for remote operation.
self-adjustment.
1-11. EQUIPMENT DATA.
WEIGHTS AND DIMENSIONS
Net Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 lb (11.4 kg)
Shipping Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 lb (13.6 kg)
Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..17.00
.
in. (43.2 cm)
Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 4.00 in. (35.6 cm)
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.22 in. (13.3 cm)
POWER
REQUIREMENTS
Voltage:
100Vac
120Vac
220Vac
240Vac
operation
operation
operation
operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .198
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
to
to
to
to
108Vac
126Vac
231Vac
252Vac
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 to 440Hz
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 VA maximum
Fuse Rating:
100/120Vac
220/240Vac
operation
operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.750 amp, 250 volt
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.375 amp, 250 volt
ENVIRONMENTAL
Operating temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . 0 to +50°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40 to +75°C
Relative
humidity:
+25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 % m a x i m u m
+40°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75% maximum
+50°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45% maximum
Operating altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 10,000 feet (3,048 m)
Storage altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 40,000 feet (12,195 m)
Vibration (operating) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 to 55 Hz at 0.013 in. level (2 g accel at 55 Hz)
Shock (non-operating) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 g, 11 ms (half-sine)
1-3
TM 11-6625-3198-12
PERFORMANCE
Frequency:
Range:
50 Ω, 75 Ω unbalanced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 mHz to 20 MHz 20 Hz to 20 MHz synthesized)
135 Ω balanced. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 mHz to 1 MHz
600 Ω Balanced or unbalanced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 mHz to 1 MHz
Accuracy:
2 mHz to 20 Hz
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 3% of reading
FM and Sweep Modes:
20 mHz to 20 MHz
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 3% of reading
CW and AM Modes:
20 Hz to 1 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 0.05% of reading
1 MHz to 20 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 0.1% of reading
Resolution (200 to 2000 counts in the display)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1/2 digits
Spurious Signals (> ± 200 Hz offset):
1 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 60 dBc
1 MHz to 10 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 40 dBc
10 MHz to 20 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 36 dBc
Stability:
Time:
Within 10 min:
< 20 Hz (or in FM and Sweep Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 0 . 1 %
20 Hz to 20 MHz (CW and AM Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.05%
Within 24 hours:
< 20 Hz (or in FM and Sweep Mode)
20 Hz to 20 MHz (CW and AM Mode)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 0.5%
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 0.1%
Line Voltage:
For ± 10% variation:
< 20 Hz (or in FM and Sweep Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 0.1%
20 Hz to 20 MHz (CW and AM Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 0.01%
Temperature:
< 20 Hz (or in FM and Sweep Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 100 ppm/°C
20 Hz to 20 MHz (CW and AM Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 50 ppm/°C
Output Level Variations:
< 20 Hz (or in FM and Sweep Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ±0.1%
20 Hz to 20 MHz (CW and AM Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 0.01%
Amplitude:
Range:
Open circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 mVp-p to 30 Vp-p
Terminated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 mVp-p to 15 Vp-p
1-4
TM 11-6625-3198-12
Resolution:
Open circuit:
2 mVp-p to 20 Vp-p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 digits
≤ 30 Vp-p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1/2 digits
Terminated:
1 mVp-p to Vp-p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 digits
≤ 1 5 V p - p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1/2 digits
Sine Wave Accuracy:
Unbalanced Output:
2 mHz to 49.99 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50 Hz to 99.99 kHz, from 0.001 Vp-p to 20.0 Vp-p open circuit . . . . . . . . . . . . . . . . . . . . .
50 Hz to 99.99 kHz, from 20.0 Vp-p to 30.0 Vp-p open circuit . . . . . . . . . . . . . . . . . . . . . .
100 kHz to 1 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
± 2%
± 2%
± 3%
± 4%
of
of
of
of
reading
reading
reading
reading
Unbalanced Output (50 and 75 Ω ):
1 MHz to 5 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 5% of reading
5 MHz to 15.99 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 12% of reading
16 MHz to 19.99 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 30% of reading
NOTE
To all Sine Wave percentages, add the following offsets to open circuit voltages:
± 10 mV for 1 Vp-p to 30 Vp-p
± 2 mV for 100 mVp-p to 999 mVp-p
± 1 mV for 1 mVp-p to 99.9 mVp-p
Square/Triangle Accuracy:
Unbalanced Output:
2 mHz to 100 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
100 kHz to 1 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
± 3% of reading
± 5% of reading
Unbalanced Output (50 and 75 Ω ):
1 MHz to 5 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 6% of reading
5 MHz to 20 MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 12% of reading
NOTE
To all Square/Triangle percentages, add the following offsets to open circuit voltages:
± 20 mV for 10 Vp-p to 30 Vp-p
± 10 mV for 1 mVp-p to 9.99 mVp-p
± 4 mV for 100 mVp-p to 999 mVp-p
± 3 mV for 10 mVp-p to 99.9 mVp-p
± 2 mV for 1 mVp-p to 9.99 mVp-p
Change 1
1-5
TM 11-6625-3198-12
Output Configuration:
Balanced:
135 Ω ± 0.5% or 600 Ω ± 1%
Impedance (≤ 1 MHz) ........................................................................
Connector .................................... Dual banana (differential) with binding post center tap (ct)
Unbalanced:
Impedance:
50 Ω ± or 75 Ω 1%
20 MHz ...........................................................................................................
1 MHz .......................................................................................................................
600 Ω ± 1%
Connector
.........................................................................................................
Type BNC female
Waveforms:
Sine:
Unbalanced Output (THD):
2 mHz to 20 Hz ...................................................................................................
20 Hz to 100 kHz ...........................................................................................
100 kHz to 1 MHz ...............................................................................................
< 1% ( - 40 dB)
< 0.5% (- 46 dB)
< 1% (- 40 dB)
Unbalanced Output (THD) (< 10Vp-p, 50 and 75 Ω ):
1 MHz to 6 MHz ...........................................................................................................
6 MHz to 8 MHz ...........................................................................................................
8 MHz to 10 MHz .........................................................................................................
10 MHz to 20 MHz .......................................................................................................
-
34
32
30
28
dBc
dBc
dBc
dBc
-
34
30
27
26
dBc
dBc
dBc
dBc
Unbalanced Output (THD) (2 10Vp-p, 50 and 75 Ω ):
1 MHz to 6 MHz ...........................................................................................................
6 MHz to 8 MHz ...........................................................................................................
8 MHz to 10 MHz .........................................................................................................
10 MHz to 20 MHz .......................................................................................................
Balanced Output (THD):
< 1% ( - 40 dB)
10 Hz to 100 kHz ...............................................................................................
< 1.78% ( - 35 dB)
100 kHz to 1 MHz .........................................................................................
Square:
10 to 90% Rise/Fall Time (at full output into 50 Ω ) .......................................................... < 13 ns
Overshoot and Ringing ............................................. < (5% ± 20 mV) of peak to peak amplitude
Symmetry ............ 5 to 95% in 1% steps to 2 MHz linearly decreasing to 50% fixed at 20 MHz
< ± (1% +20 ns)
Accuracy .............................................................................................................
Pulse Width .....................................................................................................
100 ns to 450 sec
Triangle:
Non-Linearity (10 to 90%):
2 mHz to 99.99 kHz ...........................................................................................................
100 kHz to 1.99 MHz .........................................................................................................
2 MHz to 5 MHz ................................................................................................................
± 1%
± 2%
± 10%
Symmetry ............ 5 to 95% in 1% steps to 2 MHz linearly decreasing to 50% fixed at 20 MHz
< ± (1% + 20 ns)
Accuracy .............................................................................................................
1-6
TM 11-6625-3198-12
DC Offset:
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 digits
Range (variable):
Open Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 1 0 V
Terminated. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. ± 5V
Accuracy (open circuit):
0.5V to 10V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 1% of reading +20 mV
1 mVp-p to 500 mVp-p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±. . 1% of reading +5 mV
Operational Modes:
Continuous (CW):
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 mHz to 20 MHz
Amplitude (open circuit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 mVp-p to 30 Vp-p
Amplitude Modulation (AM):
.
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC to 100 kHz
S e n s i t i v i t y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Vp-p into 10k Ω for 100% modulation
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 Hz to 20 MHz
Modulation Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 100%
Distortion (1 MHz fc, 1 kHz fm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2% at 70% sine modulation
Amplitude (open circuit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 mVp-p to 15 Vp-p
Frequency Modulation (FM and VCF):
Frequency Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC to 100 kHz deviation rate
Frequency Control (VCF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Variable over a 1000:1 range
Slew Rate (VCF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 0.06 volts per µ s
Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Vp-p for 1000:1 frequency control
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Three decades (1000:1)
Distortion (10 MHz fc, 1 kHz fm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -35 dB at 10% modulation
Sweep:
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 ms to 100 sec ± 1%
Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Programmable over a 3 decade range (1000:1)
Start and Stop frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front panel selectable
Start and Stop frequency accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < ± 3%
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sine and all 50% symmetrical waveforms
External Inputs:
Ext Freq In:
Frequency Range (sinewave) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Hz to 20 MHz
Phase Offset Frequency Ranqe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Hz to 10.0 MHz
V o l t a g e R a n g e ( s i n e w a v e ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 mVp-p to 30 Vp-p
Phase Offset Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . ± 180°
R e s o l u t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1°
A c c u r a c y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± (4° + 20 ns)
Lock Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front panel LED
Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 k Ω ± 2 %
C o n n e c t o r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type BNC female
Mod/VCF In:
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC to 100 k Hz
Maximum input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Vp-p
Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10k Ω , ± 2%
Input Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type BNC female
1-7
TM 11-6625-3198-12
Outputs:
Sync Out:
Signal . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . Pulse waveform at the programmed frequency and symmetry
Voltage (into 50 Ω ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 1 Vp-p and <2.5 Vp-p
Transition Time (10 to 90%) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 1 3 n s
BNC female
.
C o n n e c t o r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type
Sweep Out:
Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ramp output indicating sweep position
Voltage (into 600 Ω a p p r o x ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +5V linear ramp
I m p e d a n c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 Ω
Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Type BNC female
Digital
Interface
A d d r e s s e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 00 to 30
Remote indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front panel indicator (LED)
Subsets . . . . . . . . . . . . . SH1, AH1, SRI, RL1, PP0, DC1, DT0, C0, T6, L4, TE0, LE0, and E1
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IEEE Standard 488-1978
Display
Type . . 16 digit Vacuum Fluorescent Display (VFD) with 14 segment alpha-numeric characters
Display Readout Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 1 least significant digit
Frequency:
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . mHz, Hz, kHz, and MHz
R e s o l u t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1/2 digits
Time Period:
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SEC, ms, µ s, and ns
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5. digits
Sine Amplitude:
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . dBm and V/mV (peak, peak-to-peak, and RMS)
Resolution (dBm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 dBm
Triangle/Square (50% symmetry) units
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V, mV, RMS, and dBm
Symmetry:
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Percent
Resolution (minimum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 counts
Sweep Time units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SEC or ms (with at least 100 counts)
Offset Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vdc or mVdc
External Phase:
Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Degrees or radians
Resolution:
Degrees
Radians
1-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1°
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 digit
TM 11-6625-3198-12
Section Ill.
TECHNICAL PRINCIPLES OF OPERATION
1-12. GENERAL FUNCTIONAL DESCRIPTION.
The Signal Generator (fig. 1-2) provides a highly stable output signal from 2 mHz to 20 MHz. This
signal can be externally amplitude or frequency modulated, or internally swept. Sine, Triangle, and
Square waveforms are available.
Output signal information, entry information, and error messages are shown in the display. Various
LED indicators provide additional instrument status.
CE10D002
Figure 1-2. Signal Generator SG-1288/G Simplified Block Diagram.
1-9
TM 11-6625-3198-12
The Signal Input Circuit block processes input signals connected to front panel MOD/VCF
IN and EXT FREQ IN connectors.
The MO D/VCF IN signal is routed to the Function
Generator, Sine Converter, and Modulator Circuit block unchanged. The EXT FREQ IN
signal is voltage shifted and squared, and routed to the Phase Lock Loop/Synthesizer
Circuit block.
The Operator Input Circuit block allows the operator to communicate with the Signal
When the Control Knob is moved or one of the 36 front panel keys are
Generator.
pressed, the information is processed and sent to the Microprocessor Circuit block. The
Keypad input allows the operator to enter new data values and select various operational
p a r a m e t e r s . The Control Knob allows the operator to change certain existing values.
Microprocessor Circuit block provides overall control of the internal circuitry in the Signal
Generator. Data and control signals are sent to/received from all the other blocks as
required to perform all Signal Generator operations (except the Power Supplies block).
The Operator Display and Indicator Circuit block section provides measurement
information and instrument status to the operator. U n d e r c o n t r o l o f t h e M i c r o p r o c e s s o r
Circuit block, the 16 digit Vacuum Fluorescent Display (VFD) and LED indicators show
data, modes, and functions selected.
The Phase Lock Loop/Synthesizer block provides frequency accuracy and stability
control for Signal Generator operations. The output signal frequency/phase are sampled
and compared to the frequency reference signal, and a correction signal is generated.
This signal is routed to the Function Generator, Sine Converter Modulator block to correct
the output frequency. The frequency reference is either the EXT IN signal from the Signal
Input Circuit block or a synthesized signal generated in this block.
The Function Generator, Sine Converter, Modulator block generates the various Signal
Generator output waveforms. Control is provided by the Microprocessor Circuit block.
The Function Generator subsection generates the triangle and square waveforms. The
Sine Converter subsection produces the sine waveform.
The Modulator subsection
provides amplitude and frequency modulation to the generated sine wave using the MOD
IN signal from the Signal Input Circuit block. The waveform outputs from this block are
routed to the Waveform Output Attenuators/Amplifiers block. A TTL pulse is provided to
the front panel SYNC OUT connector, and a ramp voltage corresponding to the selected
sweep frequency is provided to the front panel SWEEP OUT connector.
The Waveform Output Attenuators and Amplifiers provide the Signal Generator output
Under control of the Microprocessor Circuit block, the
waveform to the front panel.
desired waveform is selected from the Function Generator, Sine Converter, Modulator
block. The signal is then adjusted (attenuated/amplified), and correct output impedance
is provided.
The conditioned signal is then routed to the front panel BALANCED or
UNBALANCED connector.
The GPIB Circuit block allows the Signal Generator to be operated remotely using an
external controller connected to the rear panel GPIB connector. All functions except
Power Switch and Address key are programmable using the interface.
The Power Supply section provides the internal operating voltages for the Signal
Fuse protection is provided on the rear panel.
Generator.
During normal operation,
regulated +5 Vdc, -12 Vdc, +12 Vdc, -22 Vdc, and +22 Vdc are provided to all the blocks for
o p e r a t i o n . ±8Vrms is provided for the Vacuum Fluorescent Display (VFD) in the Operator
Display and Indicator Circuit block.
1-10
TM 11-6625-3198-12
CHAPTER 2
OPERATING INSTRUCTIONS
Amplitude Modulation (AM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous Wave (CW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frequency Modulation (FM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction (Section I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction (Section Ill) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Messages and Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PMCS Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sweep Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn-On Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage Controlled Frequency (VCF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Para
Page
2-11
2-9
2-12
2-2
2-1
2-4
2-7
2-8
2-3
2-5
2-10
2-6
2-13
2-17
2-15
2-18
2-12
2-1
2-12
2-14
2-14
2-12
2-12
2-16
2-13
2-21
Section I. DESCRIPTION AND USE OF OPERATOR’S CONTROLS,
INDICATORS, AND CONNECTORS
2-1.
INTRODUCTION.
T h i s s e c t i o n d e s c r i b e s a l l o f t h e o p e r a t o r c o n t r o l s , i n d i c a t o r s , and connectors for the Signal
G e n e r a t o r . Due to the large number of controls, indicators, and connectors on the front panel, it is
necessary to separate the panel into five different portions. Figure 2-1 (views A thru E) shows each
portion of the front panel. The rear panel is shown in figure 2-2.
CE10D003
Figure 2-1. Operator’s Controls, Indicators, and Connectors, front view.
2-1
TM 11-6625-3198-12
VIEW A
CONTROL, INDICATOR,
OR CONNECTOR
KEY
1
AMPLITUDE key
FUNCTION
Used to display and enter output amplitude. Displayed units in
Vp-p, Vp, Vrms, or dBm. To enter a new value, press key until
desired units are displayed. Use CURSOR keys/CONTROL KNOB
or NUMERIC/ENTER keys to enter a new value. All units reflect
Range from 0.001 to 15.0Vp-p, 0.0005 to 7.5 Vp,
new value.
0.0004 to 5.3 Vrms, and -56.0 dBm to +27.5 dBm. Defaults to
5Vp-p.
Restrictions:
If SYMMETRY not 50% and/or DC Offset is not
0Vdc, can select only units of Vp-p and Vp with decreased
range.
I
2
SYMMETRY key
Used to display and enter output waveform symmetry from 5% to
95%. Press to display present value. Use CONTROL KNOB or
NUMERIC/ENTER keys to enter a new value in 1% increments.
Defaults to 50%.
R e s t r i c t i o n s : Fixed at 50% when BAL, FM/VCF, or SWEEP are
selected.
Linearly increases (from 5%) and decreases (from
95%) at frequencies above 2 MHz to 50% at 20 MHz.
2-2
TM 11-6625-3198-12
KEY
3
I
CONTROL, INDICATOR,
OR CONNECTOR
OFFSET key
4
(SINE) indicator
I
FUNCTION
Used to display and enter DC offset value from +5.000 to 5.000V.
In DC function, controls signal output polarity and
level.
In SINE, TRIANGLE, and SQUARE functions, controls
reference level of output waveform. Press to display present
value. Use CURSOR keys/CONTROL KNOB or NUMERIC/ENTER
keys to enter a new value. Defaults to 0Vdc.
R e s t r i c t i o n s : Fixed at 0Vdc when BAL selected. When SWEEP,
CW, and FM/VCF are selected, range limited at amplitudes
>5Vdc.
When AM is selected, range limited at amplitudes >
2.5Vdc.
When on, indicates SINE function is active.
Provides an
operator defined sine waveform from Unbalanced or Balanced
To activate, press function SELECT key
output connectors.
until indicator lights. Defaults to SINE.
Restrictions: Locked in when BAL and/or AM selected.
5
(TRIANGLE) indicator
When on, indicates TRIANGLE function is active. Provides an
operator defined triangle waveform from Unbalanced connector.
To activate, press function SELECT key until indicator lights.
Restrictions: Locked out when BAL and/or AM selected,
6
(SQUARE) indicator
When on, indicates SQUARE function is active.
Provides an
operator defined square waveform from Unbalanced connector.
To activate, press function SELECT key until indicator lights.
Restrictions: Locked out when BAL and/or AM selected.
7
DC indicator
When on, indicates DC function is active. Provides an operator
defined DC voltage level from Unbalanced connector. To
activate, press function SELECT key until indicator lights.
R e s t r i c t i o n s : Locked out when BAL, AM, and/or phase lock ON
is selected.
8
Function SELECT key
Used to select SINE, TRIANGLE, SQUARE, or DC function.
Press until desired indicator lights.
Restrictions: See SINE, TRIANGLE, SQUARE, and DC indicators.
9
SYNC OUT connector
BNC female connector with capacity of driving 50 Ω . Provides a 1
to 2.5Vp-p TTL pulse at output waveform frequency.
Signal is
when
Generator to
external
used
synchronizing
Signal
equipment.
Signal symmetry same as square wave. Signal in
phase with square wave but leads sine and triangle waveforms
90°.
Restrictions: Signal not present in DC function.
10
Ext Lock ON/OFF key
Used to select the external reference frequency signal
OFF activates
connected to the EXT FREQ IN connector.
internal frequency reference signal.
ON deactivates internal
frequency reference and an external signal must be used. Press
for on (Ext Lock ON indicator on), press for off (Ext Lock ON
indicator off).
Restrictions: Locked out when frequency <20 Hz, and when DC,
SWEEP, and/or FM/VCF selected.
2-3
TM 11-6625-3198-12
KEY
CONTROL, INDICATOR,
OR CONNECTOR
11
EXT FREQ IN connector
BNC female connector with 10k Ω input impedance accepts 20 Hz
to 20 MHz sinewave from 600mVrms to 30Vp-p signal. Frequency
must be set to Signal Generator output frequency ± 3%. Used to
connect an external frequency reference to the Signal Generator
for increased accuracy and stability.
12
Ext Lock ON indicator
When on, indicates signal connected to EXT FREQ IN connector
is to be used for reference frequency. Does not indicate signal
is present at EXT FREQ IN connector. See Ext lock ON/OFF key
for further explanation.
13
UNLOCK indicator
When flashing, indicates problem with internal or external
frequency reference signal, causing Signal Generator output
frequency to be inaccurate. Normally off.
14
PHASE key
Used to display and enter output signal phase.
Phase
relationship compared to an external signal connected to EXT
FREQ IN connector.
Displayed units in +/- degrees or +/radians. To enter a new value, press key until desired units are
keys/CONTROL
displayed.
Use
CURSOR
KNOB or
N U M E R I C / E N T E R k e y s t o e n t e r a new value. Both units reflect
Range from +180° to -180° or +3.14 to -3.14
new value.
radians. Defaults to 0 O .
15
POWER switch
Used to turn Signal Generator on or off. ON when button rocked
up, OFF when button rocked down.
16
DISPLAY key
Used to display and adjust intensity of DISPLAY from 00 to 31.
31 is brightest setting. Press to display present value.Use
CONTROL KNOB or NUMERIC/ENTER keys to enter a new value.
Defaults to 16.
17
RESET key
Used to set Signal Generator parameters to default condition
(para 2-6). GPIB address remains unchanged. Press to activate.
18
CALIBRATE key
Performs 20
Used to perform Signal Generator self check.
second functional check/fine tune of certain internal circuits.
DISPLAY indicates CALIBRATING during self check, and
Press to
AUTO CALIBRATED after successful self check.
activate.
FUNCTION
Restrictions:
applied.
19
FREQUENCY key
Requires 20 minute warm-up each time power is
Used to display and enter output frequency/period. Displayed
Displayed period
frequency units in mHz, Hz, kHz, and MHz.
units in SEC and ms. T o e n t e r a n e w v a l u e , p r e s s k e y u n t i l
desired units are displayed. Use CURSOR keys/CONTROL KNOB
or NUMERIC/ENTER keys to enter a new value in Hz or SEC.
Both units reflect new value. Range from 0.002 Hz to 20.00 MHz
or 500.0 SEC to 0.00005ms. Defaults to 1.000 kHz.
R e s t r i c t i o n s : Frequencies >2 MHz limited when SYMMETRY not
50%.
Frequencies <20 Hz locked out when phase lock ON
Frequencies >1 MHz locked out when BAL, 135 Ω ,
selected.
Frequencies <0.1 Hz locked out when
and/or 600 Ω s e l e c t e d .
AM selected.
2-4
TM 11-6625-3198-12
VIEW B
KEY
20
CONTROL, INDICATOR,
OR CONNECTOR
<— CURSOR key
FUNCTION
Used to change display setting. M o v e s s e l e c t a b l e d i g i t t o l e f t
Press key until
through all possible display combinations.
desired digit flashes, then use CONTROL KNOB to change value.
R e s t r i c t i o n s : Not used for DISPLAY, PHASE, SYMMETRY, and
ADDRESS keys.
21
CURSOR —> key
Used to change display setting. Moves selectable digit to right
Press key until
through all possible display combinations.
desired digit flashes, then use CONTROL KNOB to change value.
R e s t r i c t i o n s : Not used for DISPLAY, PHASE, SYMMETRY, and
ADDRESS keys.
22
TIME key
Used to display and enter time or rate for one complete sweep.
Only used during SWEEP modulation. Displayed units in SEC or
Hz. T o e n t e r a n e w v a l u e , p r e s s k e y u n t i l d e s i r e d u n i t s a r e
displayed.
Use
CURSOR
keys/CONTROL
KNOB or
NUMERIC/ENTER keys to enter a new value. Both units reflect
new value.
Range from 0.1 to 100 SEC or 10 to 0.01 Hz.
Defaults to 1 SEC.
23
LOCAL key
Used to return Signal Generator to front panel control from
Press to
Displays GO TO LOCAL.
remote (GPIB) operation.
activate.
Restrictions:
Will not select if Local Lockout set by external
Controller during remote operation.
2-5
TM 11-6625-3198-12
KEY
CONTROL, INDICATOR,
OR CONNECTOR
FUNCTION
24
REMOTE indicator
When on, indicates Signal Generator is in remote (GPIB)
operation using external Controller. Front panel controls may be
used only to read instrument settings, and not to change entered
values.
25
ADDRESS key
Used to display and enter GPIB address from 00 to 30. Press to
display present value. Use CONTROL KNOB or NUMERIC/ENTER
keys to enter a new value. Defaults to 09.
Restrictions:
Will not select if Local Lockout set by external
Controller during remote operation.
26
FM/VCF indicator
When on, indicates FM/VCF modulation mode is active. Provides
an o p e r a t o r d e f i n e d f r e q u e n c y m o d u l a t e d w a v e f o r m f r o m
Unbalanced or Balanced output connectors. An external signal
source connected to MOD/VCF IN connector is required for
FM/VCF operation.
External signal amplitude (0 to 10Vp-p)
c o n t r o l s d e v i a t i o n . External signal frequency (DC to 100 kHz)
c o n t r o l s r a t e . To activate, press modulation SELECT key until
indicator lights.
Restrictions: Locked out when SYMMETRY not 50% and/or when
phase lock ON selected.
27
SWEEP OUT connector
BNC female connector with 600 Ω output impedance. Provides a
0 to +5V or +5 to 0V linear ramp voltage from start to stop
frequency at sweep time selected. Signal is used for sweeping
an external signal source.
Restrictions:
mode.
Signal only present during SWEEP modulation
28
MOD/VCF
connector
Used to
BNC female connector with 10k Ω i n p u t i m p e d a n c e .
connect an externally supplied DC to 100 kHz signal for
modulation
of Unbalanced and
Balanced output signals.
Maximum input is 20Vp-p. Input amplitude controls AM depth and
FM/VCF deviation.
Input frequency controls AM and FM/VCF
modulation rate.
29
Modulation SELECT key
Used to select SWEEP, CW, AM, or FM/VCF modulation. Press
until desired indicator lights.
IN
Restrictions: See SWEEP, CW, AM, or FM/VCF indicators.
30
AM indicator
When on, indicates AM modulation mode is active. Provides an
operator defined amplitude modulated waveform from Unbalanced
or Balanced output connectors.
An external signal source
for AM
connected
to
MOD/VCF
IN
connector
is required
operation. External signal amplitude (0 to 4Vp-p) controls depth.
External signal frequency (DC to
4Vp-p provides 100% depth.
100 kHz) controls rate. To activate, press modulation SELECT
key until indicator lights.
Restrictions:
Locked out when TRIANGLE, SQUARE, or DC
function selected, frequency set to <0.1 Hz, and/or the sum of
AMPLITUDE (Vp-p) and OFFSET (Vdc) exceeds 7.5.
2-6
TM 11-6625-3198-12
KEY
31
I
CONTROL, INDICATOR,
OR CONNECTOR
CW indicator
FUNCTION
When on, indicates CW modulation mode is active. Provides an
operator defined continuous waveform from Unbalanced or
Balanced output connectors.
To activate, press modulation
SELECT key until indicator lights. Defaults to CW.
Restrictions: Locked in when TRIANGLE, SQUARE, and Ext lock
ON. AMPLITUDE and/or SYMMETRY selections lock out SWEEP,
AM, and FM/VCF modes.
32
SWEEP indicator
When on, indicates SWEEP modulation mode is active. Provides
an operator defined swept waveform from Unbalanced or
Balanced output connectors.
To activate, press modulation
SELECT key until indicator lights and SWEEP RUN is shown in
DISPLAY.
R e s t r i c t i o n s : Locked out when SYMMETRY not 50%, when Ext
lock ON selected, and/or when combination of START/STOP
frequencies exceed range limits.
33
START/STOP key
Used to display and enter start and stop frequencies for SWEEP
modulation mode.
Displayed units in mHz, Hz, kHz, and MHz.
Press for start frequency, and again for stop frequency. If
SWEEP indicator on, pressing again will cause swept output
(DISPLAY indicates SWEEP RUN). To enter a new value, press
Use CURSOR
key until desired parameter is displayed.
keys/CONTROL KNOB or NUMERIC/ENTER keys to enter a new
v a l u e . Range from 2 mHz to 20 MHz. Defaults are 2.0 Hz start
and 2 kHz stop.
R e s t r i c t i o n s : If SWEEP selected while entering start and stop
frequencies, will automatically change value entered first to
provide sweep within acceptable range limits,
34
PARAM RESET key
Used to reset only parameter currently shown in DISPLAY to
default value.
Does not change non-displayed parameters.
Press to activate.
35
PANEL LOCK key
Used to disable all front panel key selections, except POWER
switch. Does not affect signals at output connectors. Press to
activate, press again to deactivate. DISPLAY indicates PANEL
LOCKED or PANEL UNLOCKED to show status.
R e s t r i c t i o n s : If panel is locked when POWER is set to OFF, it
will remain locked when POWER is set to ON; however, the
DISPLAY will not indicate locked status.
2-7
TM 11-6625-3198-12
KEY
36
CONTROL, INDICATOR,
OR CONNECTOR
Function output SELECT
key
FUNCTION
Used to select desired output impedance (50 Ω, 75 Ω, 135 Ω, o r
600 Ω ) and output connector (UNBAL or BAL) combination. Press
until desired indicators light.
Restrictions:
indicators.
See 50 Ω , 75 Ω , 135 Ω, 600 Ω, U N B A L , o r B A L
37
50 Ω indicator
When on, indicates 50 Ω output impedance. Select to match 50 Ω
load impedance. Provides signal output with 50 Ω i m p e d a n c e a t
the UNBALANCED output connector. To activate, press function
output SELECT key until 50 Ω and UNBAL indicators light.
Defaults to 50 Ω /UNBAL.
38
75 Ω indicator
When on, indicates 75 Ω output impedance. Select to match 75 Ω
load impedance. Provides signal output with 75 Ω i m p e d a n c e a t
the UNBALANCED output connector. To activate, press function
output SELECT key until 75 Ω and UNBAL indicators light.
39
135 Ω indicator
Select to match
When on, indicates 135 Ω o u t p u t i m p e d a n c e .
Provides signal output with 135 Ω
135 Ω l o a d i m p e d a n c e .
impedance at the BALANCED output connector.
To activate,
press function output SELECT key until 135 Ω and BAL indicators
light.
Locked out for frequencies >1 MHz.
Restrictions:
indicator for further restrictions.
2-8
See BAL
TM 11-6625-3198-12
KEY
40
CONTROL, INDICATOR,
OR CONNECTOR
FUNCTION
When on, indicates 600 Ω output impedance. Select to match
Provides signal output with 600 Ω
600 Ω l o a d i m p e d a n c e .
BALANCED output
impedance at
the
UNBALANCED or
connectors.
To activate, press function output SELECT key
until 600 Ω and BAL, or 600 Ω and UNBAL indicators light.
600 Ω indicator
Restrictions:
Locked out for frequencies >1 MHz.
indicator for further restrictions.
41
BAL indicator
See BAL
When on, indicates BALANCED output connectors are providing
Impedance is
an operator defined balanced output signal.
selectable from 135 Ω or 600 Ω .
To activate, press function
o u t p u t S E L E C T k e y u n t i l 1 3 5 Ω and BAL, or 600 Ω a n d B A L
indicators light.
Restrictions: Locked out for frequencies >1 MHz, for TRIANGLE,
SQUARE, or DC functions, for OFFSET other than 0Vdc, and/or
SYMMETRY other than 50%.
42
BALANCED (ct) terminal
Captive screw binding post used as neutral center tap with
BALANCED (-) and BALANCED (+) jacks.
43
BALANCED (-) jack
F e m a l e b a n a n a j a c k w i t h 1 3 5 Ω or 600 Ω o u t p u t i m p e d a n c e .
Provides a balanced output from 2 mHz to 1 MHz when used as
Selected when
negative signal lead with BALANCED (+) jacks.
BAL indicator on.
44
BALANCED (+) jack
F e m a l e b a n a n a j a c k w i t h 1 3 5 Ω or 600 Ω o u t p u t i m p e d a n c e .
Provides a balanced output from 2 mHz to 1 MHz when used as
positive signal lead with BALANCED (-) jacks. Selected when
BAL indicator on.
45
UNBALANCED
BNC female connector with 50 Ω, 75 Ω, or 600 Ω output impedance.
Provides an unbalanced output from 2 mHz to 20 MHz (2 mHz to 1
MHz for 600 Ω ). Selected when UNBAL indicator on.
46
UNBAL indicator
connector
When on, indicates UNBALANCED output connector is providinq
an operator defined unbalanced output signal.
Impedance is
selectable from 50 Ω, 75 Ω, or 600 Ω. To activate, press function
output SELECT key until 50 Ω and UNBAL, 75 Ω and UNBAL, or
600 Ω and UNBAL indicators light. Defaults to 50 Ω / UNBAL.
Restrictions: 600 Ω UNBAL locked out for frequencies >1 MHz.
2-9
TM 11-6625-3198-12
KEY
CONTROL, INDICATOR,
OR CONNECTOR
FUNCTION
47
+/- k e y
Used to enter a positive or negative sign for numeric data entry,
Used for standard and exponent entry. Blank indicates positive,
- indicates negative. Press to change sign.
48
. (DECIMAL) key
Used to enter a decimal for numeric data entry.
49
ENTER key
Used to terminate entries from NUMERIC keypad, Pressing after
numeric data entry transfers DISPLAY contents to Signal
within
Values
entered
not
Generator internal circuits.
specifications are disregarded. Values exceeding resolution are
rounded or entered to nearest available value.
50
EXP key
To enter an exponent, use
Used to enter an exponent digit.
NUMERIC keypad to enter prefix, press EXP key, then exponent
value using NUMERIC key 0 to 9. Exponent can be entered as a
negative by pressing +/- key.
51
CE key
Used to clear DISPLAY of numeric entry error when using
NUMERIC keys. Unwanted data must be cleared before pressing
ENTER key. Press once to clear numeric entry.
52
KNOB key
Used to enable or disable CONTROL KNOB. When on,
appropriate parameter key activates CONTROL KNOB
KNOB
is
indicator ON).
W h e n o f f , CONTROL
(ENABLE indicator remains OFF). Press for ON, press
OFF. Defaults to ON.
53
ENABLE
indicator
When on, indicates CONTROL KNOB will change flashing digit in
DISPLAY, Press KNOB key to activate
R e s t r i c t i o n s : ENABLE indicator will Iight only when
parameter that can use the CONTROL KNOB as input.
54
2-10
NUMERIC keypad (0 — 9)
selecting
(ENABLE
deactivated
again f o r
selecting
a
Used to enter a 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9 for numeric data
e n t r y . Used with +/-, DECIMAL, ENTER, EXP, and CE keys to
enter data. Press desired digit.
TM 11-6625-3198-12
CONTROL, INDICATOR,
OR CONNECTOR
KEY
FUNCTION
55
DISPLAY
Indicates output signal information, entry information, operator
messages, and error codes.
Variable brightness 16-digit
alphanumeric display with decimal point and minus sign.
56
CONTROL KNOB
Used to change numeric value of flashing digit as selected by
CURSOR keys shown in DISPLAY. CW rotation increases value,
CCW rotation decreases value. Active when ENABLE indicator is
ON.
Figure 2-2. Operator's Controls, Indicators, and Connectors, rear view.
KEY
I
CONTROL, INDICATOR,
OR CONNECTOR
FUNCTION
57
GPIB connector
Used to connect an external Controller to Signal Generator
during remote operation.
Connector has 24 pins and threaded
posts conforming to IEEE-488-1978.
58
lNPUT POWER connector
Used as AC power input connector for Signal Generator. Also
contains line fuse and voltage selection facilities.
Voltage
s e l e c t i o n f r o m 1 0 0 / 1 2 0 / 2 2 0 / 2 4 0 V a c . Number visible in window
indicates nominal line voltage for which Signal generator is set
to operate. Power input connector accepts female end of power
cable (supplied).
Protective grounding conductor connects
Signal Generator through this connector.
Line power fuse is
0.75 amp, 250V for 100/120Vac and 0.375 amp, 250V for
220/240Vac operation.
2-11
TM 11-6625-3198-12
Section Il. OPERATOR PREVENTIVE MAINTENANCE CHECKS AND
SERVICES
2-2. GENERAL.
To be sure that the equipment is always ready for the mission, perform scheduled preventive
maintenance checks and services (PMCS). When doing any PMCS or routine checks, keep in mind
the WARNINGS and CAUTIONS about electrical shock and bodily harm.
2-3. PMCS PROCEDURES.
a. Tools, Materials, and Equipment Required for Preventive Maintenance. No tools or equipment
are required for operator preventive maintenance. Cleaning materials required are listed in Appendix
E, items 2 and 3.
b. PMCS for Signal Generator is limited to routine checks such as shown below.
cleaning,
dusting,
wiping,
checking for frayed cables,
storing items not in use,
covering unused receptacles,
checking for loose nuts, bolts, and screws.
c.
Perform these routine checks anytime they must be done.
Section Ill.
OPERATION UNDER USUAL CONDITIONS
2-4. I N T R O D U C T I O N .
This section provides the information required to set up and operate the Signal Generator.
Information required for operation in the remote mode is provided in Appendix F. Operation is divided
into five separate procedures. Individual operating procedures for Continuous Wave (CW), Amplitude
Modulation (AM), Frequency Modulation (FM), Sweep Modulation, and Voltage Controlled Frequency
(VCF) are provided.
Table 2-1 lists maintenance messages and error codes along with the probable cause and corrective
action.
2-5.
PREPARATION FOR USE.
The Signal Generator is equipped with a three-wire power cable. When
connected to a grounded AC power receptacle, this cable grounds the
instrument front panel and cabinet. Do not use extension cords or AC
adapters without a ground.
2-12
TM 11-6625-3198-12
a. Verify that POWER switch (1) is set to OFF.
b. Verify VOLTAGE SELECTION card (5) on rear panel indicates line voltage available in your
area. Connect power cable (6) to AC POWER connector (7) on rear panel.
2-6. TURN-ON PROCEDURE.
be
a. Verify that only the power cable (6) is connected to Signal Generator, All other cables should
disconnected.
b. Set POWER ON/OFF switch (1) from OFF to ON.
“WAVETEK SG1288/G”.
Verify that the DISPLAY (4) indicates
NOTE
If a maintenance message or error code is shown in display, see table 21 for probable cause and corrective action.
c.
Press RESET key (2). Verify the following front panel condition exists:
DISPLAY
FUNCTION
MODULATION
FUNCTION OUTPUTS
All other displays and indicators
●
FREQUENCY
●
AMPLITUDE
●
●
●
●
●
●
●
●
DISPLAY
SYMMETRY
PHASE
OFFSET
START/STOP
TIME
ADDRESS
RESET (VX.XX)
(sine) indicator ON
CW indicator ON
50 Ω and UNBAL indicators ON
OFF
FREQ 1 KHZ/PER 1 MILISEC
AMPL 5VPP/AMPL 2.5 VP/
AMPL 1.77 VRMS/AMPL 18DBM
INTENSITY 16
SYMM 50 PCT
PHASE 0 DEG/PHASE 0 RAD
DCOFF 0 VDC
START 2 HZ/STOP 2 KHZ
SWPTIME 1 SEC/SWPRATE 1 HZ
ADDRS 00 to 30
Press key to display default value(s).
2-13
TM 11-6625-3198-12
d. Allow Signal Generator 20 minutes warm-up time.
NOTE
●
●
Whenever the power cable has been disconnected, or the POWER
switch has been in the OFF position, the Signal Generator requires a
20 minute waiting/warm-up period before CALIBRATE key can be
selected. If CALIBRATE key is selected before 20 minutes, DISPLAY
will indicate WA IT XX. XX MIN to show time remaining.
The CALIBRATE key performs only a 20 second self-check, and does
not replace calibration performed in accordance with the technical
bulletin listed in TB 43-180 for this equipment.
e. Press CALIBRATE key (3). Verify DISPLAY (4) indicates CALIBRATING.
f.
Wait approximately 20 seconds.
Verify the DISPLAY (4) indicates AUTOCALIBRATED.
g. If all above conditions are correct, Signal Generator is ready for operation. If indication is
incorrect, notify next higher level maintenance.
2-7. MAINTENANCE MESSAGES AND ERROR C O D E S .
Some internal circuit failures cause maintenance messages or error codes to appear in the display.
See table 2-1 for a list of possible maintenance messages/error codes and probable cause.
NOTE
If an indication appears that is not listed in table 2-1, notify next higher
level maintenance.
Table 2-1. Maintenance Messages and Error Codes.
DISPLAY
ERR XXXXXXXXX
PROBABLE CAUSE
Improper self-check/unit
failure.
CORRECTIVE ACTION
Press CALIBRATE key.
●
●
If AUTOCALIBRATED displayed, unit is
operational.
If different error displayed, press
CALIBRATE key again.
If identical error is displayed, notify, next
higher level maintenance.
Unit available for immediate operation. Notify
next higher level maintenance immediately after
use.
●
LOW BATT X.XXX V
Internal battery voltage low.
2-8. OPERATING PROCEDURES.
Operation of Signal Generator is provided in paragraphs 2-9 thru 2-13.
further description of the controls, indicators, and connectors,
2-14
Refer to paragraph 2-1 for a
TM 11-6625-3198-12
2-9. CONTINUOUS WAVE (CW).
Perform the following steps to provide a continuous wave output signal from 2 mHz to 20 MHz at from
1.0mVp-p to 15Vp-p.
1.
Press RESET key (15). Verify CW indicator (13) is on.
2.
Select
desired
output
waveform
)using
function
SELECT
key
(14).
3. Press the following keys and then enter desired value.
Use CURSOR keys (6) and CONTROL
KNOB (7), or NUMERIC keypad (9) and ENTER key (8). Entry will appear in DISPLAY (5).
4.
●
Press FREQUENCY key (1) and enter desired output frequency (Hz) or period (SEC).
●
Press AMPLITUDE key (2) and enter desired output amplitude in Vp-p, Vp, Vrms, or dBm.
●
Press SYMMETRY key (3) and enter desired output waveform symmetry in percent.
●
Press OFFSET key (4). If
selected (14), enter desired output waveform
reference level in volts DC. If DC selected (14), enter desired DC output level in volts DC.
Select desired output impedance (50 Ω /75 Ω /135 Ω / 600 Ω ) and connector (BAL/UNBAL) using
function outputs SELECT key (12) to match load termination.
NOTE
• When connecting Signal Generator output connector to
the load, use cable with closest impedance (50 Ω / 75 Ω )
for the output selected.
●
Balanced ct connector is internally connected to the
shield of all other Signal Generator BNC connectors.
When
connecting to
external
equipment
whose
connector shields are at chassis ground, aground loop
will be formed that
may
adversely
affect
the
BALANCED output signal.
5. Connect selected output BALANCED (10) or
UNBALANCED (11) connector to load.
2-15
TM 11-6625-3198-12
2-10. S W E E P M O D U L A T I O N .
Perform the following steps to provide a swept output signal from 0.002 Hz to 20 MHz at 1.0mVp-p to
15Vp-p with sweep rate from 0.1 to 100 seconds.
1.
Press RESET key (16). Select SWEEP indicator (13) using modulation SELECT key (12).
2.
Select desired output waveform
(
) using function SELECT key (15).
3 . P r e s s t h e f o l l o w i n g k e y s a n d t h e n e n t e r d e s i r e d v a l u e . Use CURSOR keys (4) and CONTROL
KNOB (5), or NUMERIC keypad (7) and ENTER key (6). Entry will appear in DISPLAY (3).
●
Press TIME key (11) and enter desired sweep time in SEC or Hz.
●
Press START/STOP key (14) until START X HZ displayed and enter desired sweep START
frequency in Hz.
●
Press START/STOP key (14) until STOP X KHZ displayed and enter desired sweep STOP
frequency in Hz
NOTE
If entered start and/or stop frequency exceeds Signal Generator sweep
limits, one parameter will b e a d j u s t e d . Press START/STOP key (14) as
required to verify entered frequencies.
Press AMPLITUDE key (1) and enter desired swept output amplitude in Vp-p, Vp, Vrms, or dBm.
●
Press OFFSET key (2) and enter desired swept output waveform reference level in volts DC.
●
4.
Select desired output impedance (50 Ω /75 Ω /135 Ω /600 Ω )
function outputs SELECT key (10) to match load termination.
and
connector
NOTE
•
When connecting Signal Generator output connector to
the load, use cable with closest impedance (50 Ω / 75 Ω )
for the output selected.
•
Balanced ct connector is internally connected to the
shield of all other Signal Generator BNC connectors.
whose
equipment
external
When
connecting to
connector shields are at chassis ground, a ground loop
will be formed that may adversely affect the
BALANCED output signal.
5. Press START/STOP key (14) until SWEEP RUN is displayed.
6. Connect selected output BALANCED (8) or UNBALANCED (9) connector to load.
2-16
(BAL/UNBAL)
using
TM 11-6625-3198-12
2-11. AMPLITUDE MODULATION (AM).
Perform the following steps to provide an amplitude modulated output signal from 0.1 Hz to 20 MHz
at 1.0mVp-p to 7.5Vp-p with modulation rate from DC to 100 kHz and modulation depth from 0 to
100%.
1.
Press RESET key (16). Select AM indicator (15) using modulation SELECT key (13).
2 . P r e s s t h e f o l l o w i n g k e y s a n d t h e n e n t e r d e s i r e d v a l u e . Use CURSOR keys (6) and CONTROL
KNOB (7), or NUMERIC keypad (9) and ENTER key (8). Entry will appear in DISPLAY (5).
●
Press FREQUENCY key (1) and enter desired output carrier frequency (Hz) or period (SEC).
●
Press AMPLITUDE key (2) and enter desired output carrier amplitude in Vp-p, Vp, Vrms, or dBm.
●
Press SYMMETRY key (3) and enter desired output carrier waveform symmetry in percent.
●
Press OFFSET key (4) and enter desired output carrier waveform reference level in volts DC.
3 . C o n n e c t external signal source sinewave to MOD/VCF lN connector (14).
4. Set external signal source to desired frequency from DC to 100 kHz. This is the rate at which the
Signal Generator will modulate the output signal.
5. Set external signal source to desired amplitude from 0 to 4Vp-p. This is the depth at which the
Signal Generator will modulate the output signal.
Modulation depth is directly proportional to
input signal amplitude.
example: 4Vp-p input provides 100% depth, 2Vp-p input provides 50% depth, etc.
6.
Select desired output impedance (50 Ω / 75 Ω / 135 Ω / 600 Ω) and
function outputs SELECT key (12) to match load termination.
connector
(BAL/UNBAL)
using
NOTE
When connecting Signal Generator output connector to
the load, use cable with closest impedance (50 Ω / 75 Ω )
for the output selected.
Balanced ct connector is internally connected to the
shield of all other Signal Generator BNC connectors.
When
connecting to
external
equipment
whose
connector shields are at chassis ground, aground loop
will be formed that may adversely affect
the
BALANCED output signal.
7. Connect selected output BALANCED (10) or UNBALANCED (11) connector to load.
2-17
TM 11-6625-3198-12
2-12. FREQUENCY MODULATION (FM).
Perform the following steps to provide a frequency modulated output signal from 0.002 Hz to 20 MHz
at 1.0mVp-pto 15Vp-p with modulation rate from DC to 100 kHz and deviation as specified below.
1.
Press RESET key (17). Verify CW indicator (15) is on.
2. Calculate and record upper and lower modulation limit frequencies required as follows:
UPPER LIMIT = CTRF + PEAK DEVIATION
LOWER LIMIT = CTRF - PEAK DEVIATION
where:
UPPER LIMIT is upper modulation limit required
LOWER LIMIT is lower modulation limit required
CTRF is desired center frequency
PEAK DEVIATION is desired positive OR negative deviation
example:
Desired Center Frequency = 200k Hz
Peak Deviation = ± 25k Hz
Upper Limit = 200k Hz + 25 kHz = 225k Hz
Lower Limit = 200 kHz - 25 kHz = 175 kHz
3. Using the table below, find and record the range number that contains the calculated upper limit
(step 2). Verify calculated lower limit (step 2) is within limits of table for range selected.
example:
Upper limit of 225 kHz is range number 8. Calculated lower
limit within range (range 8 lower limit 2.0 kHz and calculated
lower limit 175 kHz).
NOTE
Exceeding lower limit will cause output signal distortion.
2-18
TM 11-6625-3198-12
Range
Number
9
8
7
6
5
4
3
2
1
0
4.
Modulation Upper
Limit Range
2.01 MHz to 20 MHz
201 kHz to 2.0 MHz
20.1 kHz to 200 kHz
2.01 kHz to 20 kHz
201 Hz to 2 kHz
20.1 Hz to 200 Hz
2.01 Hz to 20 Hz
201 mHz to 2 Hz
20.1 mHz to 200 mHz
2 mHz to 20 mHz
Modulation
Lower Limit
Deviation per
volt
20 kHz
2.0 kHz
200 Hz
20 Hz
2 Hz
200 mHz
20 mHz
2 mHz
2 mHz
2 mHz
2 MHz
200 kHz
20 kHz
2 kHz
200 Hz
20 Hz
2 Hz
200 mHz
20 mHz
2 mHz
Calculate and record the external source amplitude (Vp-p) as follows:
OUT AMP = P-P DEVIATION + DEVIATION PER V
where:
OUT AMP is external source amplitude (Vp-p)
P-P DEVIATION is desired positive AND negative deviation
DEVIATION PER V from table above using range number
recorded in step 3
example:
P-P Deviation = 50 kHz (+ and - 25 kHz)
Deviation per volt = 200 kHz (from table, range 8)
Output Amplitude = 50 kHz
200 kHz = 0.25Vp-p
5.
Press FREQUENCY key (1) and enter calculated upper limit frequency (step 2) in Hz using
CURSOR keys (5) and CONTROL KNOB (6), or NUMERIC keypad (8) and ENTER key (7). Entry will
appear in DISPLAY (4).
6.
Select FM/VCF indicator (12) using modulation SELECT key (13).
7.
Select desired output waveform
8.
Press the following keys and then enter desired value.
Use CURSOR keys (5) and CONTROL
KNOB (6), or NUMERIC keypad (8) and ENTER key (7). Entry will appear in DISPLAY (4).
9.
(
) using function SELECT key (16).
●
Press FREQUENCY key (1) and enter center frequency used in calculation (step 2) in Hz.
●
Press AMPLITUDE key (2) and enter desired output carrier amplitude in Vp-p, Vp, Vrms, or
dBm.
●
Press OFFSET key (3) and enter desired output carrier waveform reference level in volts DC.
Connect external signal source sinewave to MOD/VCF IN connector (14)
10. Set external signal source to desired frequency from DC to 100 kHz.
Signal Generator will modulate the output signal.
This is the rate at wwhich the
11. S e t e x t e r n a l s i g n a l s o u r c e t o c a l c u l a t e d a m p l i t u d e ( s t e p 4 ) f r o m 0 t o 1 0 V p - p . T h i s i s t h e
deviation at which the Signal Generator will modulate the output signal.
2-19
TM 11-6625-3198-12
12.
Select desired output impedance (50 Ω / 75 Ω / 135 Ω / 600 Ω) and
function outputs SELECT key (11) to match load termination.
connector
(BAL/UNBAL)
NOTE
•
●
When connecting Signal Generator output connector to
the load, use cable with closest impedance (50 Ω /75 Ω )
for the output selected.
Balanced ct connector is internally connected to the
shield of all other Signal Generator BNC connectors.
When connecting to external equipment whose
connector shields are at chassis ground, a ground loop
the
affect
will
be
formed
that
may a d v e r s e l y
BALANCED output signal.
13. Connect selected output BALANCED (9) or UNBALANCED (10) connector to load.
2-20
using
TM 11-6625-3198-12
2-13. VOLTAGE CONTROLLED FREQUENCY (VCF).
Perform the following steps to provide a voltaqe controlled frequency output signal from 0.002 Hz to
20 MHz at 1.0mVp-p-to 15Vp-p.
1.
Press RESET key (17). Verify CW indicator (15) is on.
2. Calculate and record upper and Iower frequency limits required as follows:
UPPER LIMIT = INT + FREQ CHG
LOWER LIMIT = INT - FREQ CHG
where:
UPPER LIMIT is upper frequency limit required
LOWER LIMIT is lower frequency limit required
INT is desired initial frequency
FREQ CHG is desired positive or negative frequency change
example:
Desired Initial Frequency = 200k Hz
Frequency Change = (+25k Hz) and (-10 kHz)
Upper Limit = 200 kHz + 25 kHz = 225 kHz
Lower Limit = 200 kHz - 10 kHz = 190 kHz
3.
Using the table below, find and record the range number that contains the calculated upper limit
(step 2). Verify calculated lower limit (step 2) is within limits of table for range selected.
example:
Upper limit of 225 kHz is range number 8. Calculated lower
limit within range (range 8 lower limit 2.0 kHz and calculated
lower limit 190 kHz).
NOTE
Exceeding lower limit will cause output signal distortion.
2-21
TM 11-6625-3198-12
Range
Number
9
8
7
6
5
4
3
2
1
0
Upper Limit
Range
2.01 MHz to 20 MHz
201 kHz to 2.0 MHz
20.1 kHz to 200 kHz
2.01 kHz to 20 kHz
201 Hz to 2 kHz
20.1 Hz to 200 Hz
2.01 Hzto 20 Hz
201 mHz to 2 Hz
20.1 mHz to 200 mHz
2 mHz to 20 mHz
Lower
Limit
Change per
Volt
20 kHz
2.0 kHz
200 Hz
20 Hz
2 Hz
200 mHz
20 mHz
2 mHz
2 mHz
2 mHz
2 MHz
200 kHz
20 kHz
2 kHz
200 Hz
20 Hz
2 Hz
200 mHz
20 mHz
2 mHz
4. Calculate and record the external DC source level (Vdc) as follows:
OUT VOLT = FREQ CHG + CHG PER V
where:
OUT VOLT is external source voltage (+ or - Vdc)
FREQ CHG is desired positive or negative frequency change
CHG PER V from table above using range number recorded in
step 3
example:
Frequency Change = +25 kHz and –10 kHz
Change per volt = 200 kHz (from table, range 8)
Output Voltage = +25 kHz ÷ 200 kHz = +0.125 Vdc
and
Output Voltage = -10 kHz ÷ 200k Hz = -0.05 Vdc
Press FREQUENCY key (1) and enter calculated upper limit frequency (step 2) in Hz using
CURSOR keys (5) and CONTROL KNOB (6), or NUMERIC keypad (8) and ENTER key (7). Entry will
appear in DISPLAY (4).
5.
6. Select FM/VCF indicator (12) using modulation SELECT key (13).
7.
Select desired output waveform
8.
using function SELECT key (16).
Press the following keys and then enter desired value.
Use CURSOR keys (5) and CONTROL
KNOB (6), or NUMERIC keypad (8) and ENTER key (7). Entry will appear in DISPLAY (4).
●
Press FREQUENCY key (1) and enter initial frequency used in calculation (step 2) in Hz.
●
Press AMPLITUDE key (2) and enter desired output amplitude in Vp-p, Vp, Vrms, or dBm.
●
Press OFFSET key (3) and enter desired output waveform reference level in volts DC.
9. Connect external DC source DC level to MOD/VCF IN connector (14).
10. Set external DC source to calculated level (step 4) from –5 to +5 Vdc.
2-22
TM 11-6625-3198-12
11. Select desired output impedance (50 Ω / 75 Ω / 135 Ω /600 Ω) and connector (BAL/UNBAL) u s i n g
function outputs SELECT key (11) to match load termination.
NOTE
When connecting Signal Generator output connector to
the load, use cable with closest impedance (50 Ω / 75 Ω )
for the output selected.
Balanced ct connector is internally connected to the
shield of all other Signal Generator BNC connectors.
whose
When
connecting to
external
equipment
connector shields are at chassis ground, a ground loop
the
affect
will
be
formed
that
may a d v e r s e l y
BALANCED output signal.
12. Connect selected output BALANCED (9) or UNBALANCED (10) connector to load.
2-23/(2-24 BLANK)
TM 11-6625-3198-12
CHAPTER 3
UNIT MAINTENANCE
Para Page
3-1
Common Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E n v i r o n m e n t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
P a c k a g i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . 3-9
Preliminary Servicing and Adjustment of Equipment . . . . . . . . . . . . . . . . . . . . . . . .
3-5
Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Replace Control Knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-8
Replace Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Service Upon Receipt of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4
Special Tools, TMDE, and Support Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2
Troubleshooting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Types of Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Section I. R E P A I R P A R T S , S P E C I A L T O O L S , T M D E ,
3-1
3-8
3-8
3-2
3-1
3-7
3-6
3-1
3-1
3-3
3-8
AND
SUPPORT EQUIPMENT
3-1. COMMON TOOLS AND EQUIPMENT.
Common tools and equipment required for unit maintenance of Signal Generator SG-1288/G are listed
in the Maintenance Allocation Chart (MAC) (Appendix B).
3-2. SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT.
There are no special tools, TMDE, or support equipment required.
3-3. REPAIR PARTS.
Repair parts are listed and illustrated in the Repair Parts and Special Tools List, TM 11-6625-319824P.
Section II.
SERVICE UPON RECEIPT
3-4. SERVICE UPON RECEIPT OF MATERIAL.
a. U n p a c k i n g .
Special design reusable packing material inside this shipping carton provides
Avoid damaging carton and packing material during
maximum protection for Signal Generator.
equipment unpacking. Use the following steps for unpacking Signal Generator:
Cut and remove paper sealing tape on carton top and open carton.
Grasp Signal Generator firmly while restraining shipping carton and lift equipment a n d
packing material vertically.
Place Signal Generator and end cap packing material on a suitable flat clean and d r y
surface.
Remove end cap packing material while firmly supporting Signal Generator.
Remove protective plastic bag from Signal Generator.
protective plastic bag.
Place desiccant bags back inside
Place protective plastic bag and end cap packing material inside shipping carton.
Return shipping carton to supply system.
3-1
TM 11-6625-3198-12
b. Checking Unpacked Equipment.
• Inspect the equipment for damage incurred during shipment. If the equipment has been
damaged, report the damage on SF 364, Report of Discrepancy (ROD).
•
Check the equipment against the packing slip to see if the shipment is complete. Report all
discrepancies in accordance with the instructions of DA Pam 750-8
•
Check to see whether the equipment has been modified.
3-5. PRELIMINARY SERVICING AND ADJUSTMENT OF EQUIPMENT.
a. Remove fuse (para 3-7). Check that fuse and voltage selection card are correct for the line voltage available in
your area.
Input Voltage
90
108
198
216
to
to
to
t0
Voltage Selection Card Position
108
126
231
252
b. Perform turn on procedures (para 2-6).
3-2
Change 3
100
120
220
240
Fuse
3/4
3/4
3/8
3/8
amp slo-blo
amp slo-blo
amp slo-blo
amp slo-blo
TM 11-6625-3198-12
TROUBLESHOOTING
Section Ill.
SYMPTOM INDEX
Signal Generator
Symptom
Page
1.
SIGNAL GENERATOR NOT OPERATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
2.
3.
SIGNAL GENERATOR DISPLAYS ERRORS/MAINTENANCE MESSAGES . . . . . . . . . . . . . . . . . . 3-4
DISPLAY BLANK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
4.
ONE OR MORE FRONT PANEL INDICATORS INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . .3-4
5.
ONE OR MORE FRONT PANEL KEYS INOPERATIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
6.
CONTROL KNOB INOPERATIVE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-5
3-6. TROUBLESHOOTING TABLE.
Table 3-1 lists common malfunctions which you may find during operation or maintenance of the
Signal Generator.
You should perform the tests/inspections and corrective actions in the order
listed.
NOTE
This manual cannot list all malfunctions that may occur, nor all tests
or inspections and corrective actions. If a malfunction is not listed
or is not corrected by listed corrective actions, notify next higher
level maintenance.
The calibration referenced below does not replace the calibration
performed in accordance with the technical bulletin listed in TB 43180 for this equipment,
Table
3-1.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE
1.
Troubleshooting.
ACTION
SIGNAL GENERATOR NOT OPERATING.
Step 1. Check to see if fuse is blown or broken.
●
Replace fuse (para 3-7).
Step 2. Verify voltage selection card is installed and set for correct voltage.
●
Install voltage selection card for correct voltage (para 3-5).
Step 3. Check to see if voltage selection card etched metal pads are missing, burned,
or broken.
●
Notify next higher level maintenance.
3-3
TM 11-6625-3198-12
Table
3-1.
Troubleshooting—Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE
ACTION
2. SIGNAL GENERATOR DISPLAYS ERRORS/MA lNTENANCE MESSAGES.
ERR XXXXXXXXX displayed.
Press CALIBRATE key.
●
If AUTO CALIBRATED displayed, unit is operational.
●
If different error appears, press CALIBRATE key again.
●
If identical error appears, notify next higher level maintenance.
CAL REQUIRED displayed.
Notify next higher level maintenance.
●
LOW BATT X.XXX V displayed.
Notify next higher level maintenance.
●
3. DISPLAY BLANK.
Step 1. Press RESET key.
●
If DISPLAY blank, proceed with step 2.
Step 2. Press PANEL LOCK, then RESET keys.
●
If display remains blank, notify next higher level maintenance.
4. ONE OR MORE FRONT PANEL INDICATORS INOPERATIVE.
Step 1. Press PANEL LOCK key until display indicates PANEL UNLOCKED.
Step 2. Verify REMOTE indicator is off.
●
●
If on, press LOCAL key. If display indicates LOCAL LOCKOUT,
disconnect GPIB cable on rear panel.
If off, notify next higher level maintenance.
5. ONE OR MORE FRONT PANEL KEYS INOPERATIVE.
Step 1. Press PANEL LOCK key until display indicates PANEL UNLOCKED.
Step 2. Verify REMOTE indicator is off.
●
●
3-4
If on, press LOCAL key. If display indicates LOCAL LOCKOUT,
disconnect GPIB cable on rear panel.
If off, notify next higher level maintenance.
TM 11-6625-3198-12
Table
3-1.
Troubleshooting—Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE
ACTION
6. CONTROL KNOB INOPERATIVE.
Step 1. Press PANEL LOCK key until display indicates PANEL UNLOCKED.
Step 2. Verify REMOTE indicator is off.
●
If on, press LOCAL key. If display indicates LOCAL LOCKOUT,
disconnect GPIB cable on rear panel.
Step 3. Verify ENABLE indicator on.
Ž
Press Knob
KNOB.
key
and
select
parameter
that
activates
CONTROL
Step 4. Verify that Control Knob is not loose on shaft.
●
Tighten as required (para 3-8).
●
If correct, notify next higher level maintenance.
3-5
TM 11-6625-3198-12
Section IV.
MAINTENANCE PROCEDURES
3-7. REPLACE FUSE.
DESCRIPTION
This procedure covers: Remove. Install.
REMOVE
1.
Set POWER switch (1) to OFF.
2.
Unplug power cable (2).
3.
Slide plastic window (7) to left side.
4.
Pull fuse (4) out of fuseholder (3)
using extractor (6).
5.
Verify that voltage selection card (5)
and fuse (4) are correct for line voltage
being used (para 3-5).
INSTALL
1.
Push extractor (6) to closed position.
2.
Insert fuse (4) into fuseholder (3) and
press into place.
3.
Slide
plastic
window
fuseholder (3).
4.
Install power cable (2).
5.
3-6
Set POWER switch (1) to ON.
(7)
over
TM 11-6625-3198-12
3-8.
REPLACE CONTROL KNOB.
DESCRIPTION
This procedure covers: Remove. Install.
REMOVE
1.
Set POWER switch (1) to OFF.
2.
Carefully pry cover (2) from knob
base (5).
3.
Hold knob base (5) firmly and loosen
nut (3) counterclockwise,
4.
Remove nut (3) and washer (4).
5.
Remove knob base (5) straight out
from shaft (7).
6.
Remove threaded sleeve (6).
INSTALL
1. Install threaded sleeve (6) onto shaft
(7).
2.
Install knob base (5) onto threaded
sleeve (6).
NOTE
Knob alignment is not required,
3.
Install washer (4) and nut (3).
4.
Hold knob base (5) firmly and tighten
nut (3) clockwise.
5.
Press cover (2) onto knob base (5).
6.
Set POWER switch (1) to ON.
3-7
TM 11-6625-3198-12
Section V.
PREPARATION FOR STORAGE OR SHIPMENT
3-9. P A C K A G I N G .
Package Signal Generator in original shipping container. When using packing materials other than
the original, use the following guidelines:
Wrap
Signal
Generator
in
plastic
packing
material.
Use double-wall cardboard shipping container.
Protect all sides with shock-absorbing material to prevent Signal Generator movement within
the container.
Seal the shipping container with approved sealing tape.
Mark "FRAGILE" on all sides, top, and bottom of shipping container.
3-10. TYPES OF STORAGE.
Short-Term
(administrative)=1
lntermediate=46
to
180
to
45
days.
days.
Long term=over 180 days. After long term storage, perform turn-on procedure (para 2-6). If
this procedure fails, notify next higher level maintenance.
3-11. ENVIRONMENT.
The Signal Generator should be stored in a clean, d r y e n v i r o n m e n t . In high humidity environments,
protect the Signal Generator from temperature variations that could cause internal condensation.
The following environmental conditions apply to both shipping and storage:
Temperature
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° F to +158° F (– 40° C to +75° C)
Relative Humidity (sea level)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . less than 95% at +25°C
Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . .
less than 40,000 feet (12,195 meters)
Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shock
3-8
less than 2 g
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . less than 30 g
TM 11-6625-3198-12
APPENDIX A
REFERENCES
A-1. SCOPE.
This appendix lists all forms, field manuals, technical manuals, and miscellaneous publications referenced in
this manual.
A-2. FORMS.
Equipment Inspection and Maintenance Worksheet ...................................................................DA Form 2404
Product Quality Deficiency Report ................................................................................................. Form SF 368
Recommended Changes to Publications and Blank Forms ........................................................DA Form 2028
Report of Discrepancy (ROD) ........................................................................................................ Form SF 364
Transportation Discrepancy Report (TDR) .................................................................................... Form SF 361
A-3. TECHNICAL MANUALS.
Procedures for Destruction of Electronics Materiel to Prevent Enemy
Use (Electronics Command) ................................................................................................... TM 750-244-2
The Army Maintenance Management System (TAMMS) ........................................................... DA Pam 750-8
Unit and Intermediate Direct Support and General Support Repair Parts
and Special Tools List, for Signal Generator SG-1288/G .........................................TM 11-6625-3198-24P
A-4. MISCELLANEOUS.
Abbreviations for Use on Drawings, Specifications, Standards and in
Technical Documents ................................................................................................................. MIL-STD-12
Common Table of Allowances .........................................................................................................CTA 50-970
Consolidated Index of Army Publications and Blank Forms ....................................................... DA Pam 25-30
First Aid for Soldiers .........................................................................................................................FM 4-25.11
Safety Precautions for Maintenance of Electrical/Electronic Equipment ............................................. TB 385-4
Change 3
A-1/(A-2 BLANK)
TM 11-6625-3198-12
APPENDIX B
MAINTENANCE ALLOCATION CHART
Section I.
B-1.
INTRODUCTION
GENERAL.
a. This appendix provides a general explanation of all maintenance and repair functions
authorized at various maintenance levels for the SG-1288/G.
b. The Maintenance Allocation Chart (MAC) in Section II designates overall authority and
responsibility for the performance of maintenance functions on the identified end item or component.
The application of the maintenance functions to the end item or component will be consistent with the
capacities and capabilities of the designated maintenance levels.
c. S e c t i o n I l l l i s t s t h e t o o l s a n d t e s t e q u i p m e n t ( b o t h s p e c i a l t o o l s a n d c o m m o n t o o l s e t s )
required for each maintenance function as referenced from section Il.
d. Section IV contains
maintenance function.
B-2.
supplemental
instructions
and
explanatory
notes
for
a
particular
MAINTENANCE FUNCTIONS.
Maintenance functions will be limited to and defined as follows:
a . I n s p e c t . To determine the serviceability of an item by comparing its physical, mechanical,
and/or electrical characteristics with established standards through examination.
b. Test. To v e r i f y s e r v i c e a b i l i t y a n d t o d e t e c t i n c i p i e n t f a i l u r e b y m e a s u r i n g t h e m e c h a n i c a l o r
electrical characteristics of an item and comparing those characteristics with prescribed standards.
c. S e r v i c e . Operations required periodically to keep an item in proper operating condition, i. e.,
to clean (includes decontaminate, when required), preserve, drain, paint, or to replenish fuel,
lubricants, chemical fluids, or gases.
d. Adjust. Maintain or regulate within prescribed limits, by bringing into proper or exact position,
or by setting the operating characteristics to the specified parameters.
e . A l i g n . To adjust specified variable elements of an item to bring about optimum or desired
performance.
f.
Calibrate.
test measuring
comparisons of
and adjust any
To determine the cause and corrections to be made or adjusted on instruments or
and diagnostic equipment used in precision measurement .
This consists of
two instruments, one of which is a certified standard of known accuracy, to detect
discrepancy in the accuracy of the instrument being compared.
g. Remove/Install. To remove and install the same item when required to perform service on other
maintenance functions. Install may be the act of emplacing, seating, of fixing into position an item,
part, module (component or assembly) in a manner to allow the proper functioning of the equipment or
system.
h. Replace. To remove an unserviceable item and install a serviceable counterpart in its place.
Replace is authorized by the MAC and is shown as the 3d position code of the SMR code.
B-1
TM 11-6625-3198-12
i.
Repair.
The application of maintenance services (inspect, test, service, adjust, align,
calibrate, and/or
replace)
including fault location/troubleshooting,
and
removal/installation,
disassembly/assembly procedures,
and
maintenance
actions
(welding, grinding, riveting,
straightening, facing, remachining, or resurfacing) to identify troubles, and restore serviceability to
an item by correcting specific damage, fault, malfunction, or failure in a part, subassembly, module
(component or assembly), and item or system.
O v e r h a u l . That periodic maintenance effort (service/action) prescribed to restore an item to a
j.
completely serviceable/operational condition as required by maintenance standards in appropriate
technical publications (i. e., DMWR) .
Overhaul is normally the highest degree of maintenance
performed by the Army. Overhaul does not normally return an item to like new condition.
k. Rebuild. C o n s i s t s o f t h o s e s e r v i c e s / a c t i o n s n e c e s s a r y f o r t h e r e s t o r a t i o n o f u n s e r v i c e a b l e
Rebuild is
equipment to a like new condition in accordance with original manufacturing standards.
The rebuild operation
the highest degree of material maintenance applied to Army equipment.
includes the act of returning to zero those age measurements (hours, miles, etc.) considered in
classifying Army equipment/components.
B-3.
EXPLANATIONS OF COLUMNS IN THE MAC, SECTION Il.
a. Column 1, Group Number. Column 1 lists functional group code numbers, the purpose of which
is to identify maintenance significant components, assemblies, subassemblies and modules with the
next higher assembly. End item group number shall be "00".
b. Column 2, Component/Assembly.
Column 2 contains the noun names of components,
assemblies, subassemblies, and modules for which maintenance is authorized.
c. Column 3, Maintenance Function.
Iisted in column 2 .
Column 3 lists the functions to be performed on the item
d. Column 4, Maintenance Level. C o l u m n 4 s p e c i f i e s , by the listing of a work time figure in the
appropriate subcolumn (s), the level of maintenance authorized to perform the function listed in
column 3. This figure represents the active time required to perform that maintenance function at the
indicated level of maintenance.
If the number or complexity of the tasks within the listed
maintenance function vary at different levels, appropriate work time figures will be s h o w n for each
level.
The work time figure represents the average time required to restore an item (assembly,
s u b a s s e m b l y , c o m p o n e n t , module, end item or system) to a serviceable condition under typical field
preparation
time (including any necessary
operating
This
includes
conditions.
time
location time and quality assurance/ quality
disassembly/assembly time), troubleshooting/fault
control time in addition to the time required 10 perform the specific tasks identified for the
maintenance functions authorized in the maintenance allocation chart. The symbol designations for
the various maintenance levels are as follows:
UNIT
C — Operator/ Crew
O — Unit Maintenance
INTERMEDIATE
F — Direct Support Maintenance
H — General Support Maintenance
L — Specialized Repair Activity
DEPOT
D — Depot Maintenance
e. Column 5, Tools and Equipment. Column 5 specifies by code, those common tool sets (not
individual tools) and special tools, TMDE, and support equipment required to perform the designated
function.
C o l u m n 6 , R e m a r k s . This column shall, when applicable, contain a letter code, in alphabetic
f.
order, which shall be keyed to the remarks contained in Section IV.
B-2
TM 11-6625-3198-12
B-4.
EXPLANATIONS OF COLUMNS IN THE TEST EQUIPMENT REQUIREMENTS, SECTION
Ill.
a. Column 1, Reference Code.
the MAC, Section II, Column 5.
The tool and test equipment code correlates with a code used in
b. Column 2, Maintenance Level.
test equipment.
The lowest level of maintenance authorized to use the tool or
c. Column 3, N o m e n c l a t u r e . Name or identification of the tool or test equipment.
d. Column 4, National Stock Number. The National Stock Number of the tool or test equipment.
e. Column 5, Tool Number. The manufacturer’s part number.
B-5.
EXPLANATIONS OF COLUMNS IN REMARKS, SECTION IV.
a. Column 1, Reference Code. The code recorded in column 6, Section II,
b. Column 2, Remarks. This column lists information pertinent to the maintenance function being
performed as indicated in the MAC, Section Il.
B-3
TM 11-6625-3198-12
Section Il.
MAINTENANCE ALLOCATION CHART
FOR
SIGNAL GENERATOR SG-1288/G
(1)
GROUP
NUMBER
00
(2)
COMPONENT / ASSEMBLY
Signal Generator
SG-1288/G
(3)
MAINTENANCE
FUNCTION
Inspect
Test
Repair
(4)
MAINTENANCE LEVEL
UNIT
(5)
TOOLS
INTERMEDIATE DEPOT AND
EQPT.
(6)
REMARKS
A
B
0.1
0.2
0.2
1
C
D
E
Inspect
Test
Repair
0.1
0.8
2.0
3-21
2-23
01
Front Panel /
Display / Keyboard
Replace
0.4
2
02
Phase Lock Loop CCA
Replace
0.2
2
03
Function Generator
CCA
Replace
0.2
2
04
Output CCA
Replace
Repair
0.2
0.8
2,8
F
Replace
Repair
0.4
1.5
2
2,8
G
Replace
0.4
2
05
06
B-4
Motherboard CCA
Rear Panel Assembly
TM 11-6625-3198-12
Section Ill.
(1)
TOOL / TEST
EQUIPMENT
REF CODE
TOOL AND TEST EQUIPMENT REQUIREMENTS
FOR
SIGNAL GENERATOR SG-1288/G
(3)
(2)
(4)
(5)
NATIONAL / NATO
STOCK NUMBER
TOOL
NUMBER
MAINT
LEVEL
NOMENCLATURE
1
O
Tool Kit, Electronic Equipment
5180-00-064-5178
TK-101/G
1
O
Tool Kit, Electronic Equipment
5180-00-064-5178
TK-101/G
2
H
Tool Kit, Electronic Equipment
4931-01-073.3845
TK-17AL
3
H
Oscilloscope,
6625-01-034-3269
Tek 5440
4
H
Plug-in Unit, Amplifier
6625-01-008-1480
Tek 5A48
5
H
Plug-in Unit, Time Base Delay
6625-01-008-1480
Tek 5B42
6
H
Oscilloscope Probe (2 each)
6625-00-098-8141
Tek 6201A
7
H
Frequency Counter
6625-00-531-4752
Tek 5345A
8
H
Digital Multi meter
6625-00-557-8305
HP 3490A
9
H
Probe, High Voltage
6625-01-023-6253
HPK253490A
10
H
Distortion
11
H
Signal Generator
6625-00-566-3067
HP 8640 BH66
12
H
Electronic Synthesizer
(Or Equivalent)
6625-01-158-2607
HP 3325A
13
H
Cable, Coaxial, 50 Ω BNC, 4 FT
(4 each) (Or Equivalent)
POM
BNC-C-48
14
H
Adapter, BNCT
(Or Equivalent)
POM 3284
15
H
Termination, Feed thru, BNC
50 Ω (2 Each) (Or Equivalent)
POM411950
16
H
Cable, Coaxial, 75 Ω BNC, 4 FT
(Or Equivalent)
POM
BNC-E-48
17
H
Termination, Feedthru, BNC
75 Ω (Or Equivalent)
POM411975
18
H
Adapter, BNC to Double Banana
Plug (Or Equivalent)
POM 1269
19
H
Double Banana Plug (2 each)
(Or Equivalent)
POM
1330-ST-2
Mainframe
HP C41 334A
Analyzer
B-5
TM 11-6625-3198-12
Section Ill.
TOOL AND TEST EQUIPMENT REQUIREMENTS
FOR
SIGNAL GENERATOR SG-1288/G — CONTINUED
(1)
(2)
(3)
(4)
(5)
TOOL / TEST
EQUIPMENT
REF CODE
MAINT
LEVEL
NOMENCLATURE
NATIONAL/ NATO
STOCK NUMBER
TOOL
NUMBER
20
H
Termination, Feed thru, BNC
600 Ω (Or Equivalent)
POM
4119-600
21
H
Cable Assembly, High
Impedance (Or Equivalent)
POM 2BBBNC-48
......
B-6
SPECIAL TOOLS . . .
22
H
Extender Board (40 pin)
(23338) 1100-00-3016
23
H
Extender Board (24 pin)
(23338) 1100-00-3015
TM 11-6625-3198-12
Section IV. REMARKS
FOR
SIGNAL GENERATOR SG-1288/G
(2)
(1)
REFERENCE
CODE
REMARKS
A
External
B
Perform turn-on procedure (para 2-6).
C
Repair limited to replacement of front panel knob and/or rear panel fuse.
D
Performance tests.
E
Repair limited to replacement of feet, handles, and/or subassemblies.
F
Repair is limited to replacement of Q18 thru Q23.
G
Repair is limited to replacement of BT1, CR40, J15 to J 1 9 , Q7, Q10, VR3, VR4,
VR7, and VR8.
visual
inspection.
I
B-7/(B-8 BLANK)
TM 11-6625-3198-12
APPENDIX C
COMPONENTS OF END ITEM AND BASIC ISSUE ITEMS LIST
Section I.
C-1.
INTRODUCTION
SCOPE.
This appendix lists components of the end item and basic issue items for the Signal Generator SG1288/G to help you inventory items required for safe and efficient operation.
C-2.
GENERAL.
The components of End Item and Basic Issue Items List (Bll) are divided into the following sections:
a. Section II — Components of End Item. This listing is for information purposes only and is not
a u t h o r i t y t o r e q u i s i t i o n r e p l a c e m e n t s . T h e s e a r e p a r t o f t h e e n d i t e m: b u t a r e r e m o v e d a n d / o r
separately packaged for transportation or shipment. As part of the end item, these items must be
with the end item whenever it is issued or transferred between property accounts. I l l u s t r a t i o n s a r e
furnished to assist you in identifying the items.
b. Section III — Basic Issue Items. These are the minimum essential items required to place the
Signal Generator SG-1288/G in operation, to operate it, and to perform emergency repairs. Although
shipped separately packaged, Bll must be with the Signal Generator SG-1288/G during operation and
This manual is your authority to
whenever it is transferred between property accounts.
request/requisition replacement Bll, based on TOE/MTOE authorization of the end item.
C-3.
EXPLANATION OF COLUMNS.
a. Column (1) — Illustration Number (lIIus Number).
illustration in which the item is shown.
This column indicates the number of the
b. Column (2) — National Stock Number.
This column indicates the national stock number
assigned to the item and will be used for requisitioning purposes.
c. Column (3) — Description. T h i s c o l u m n i n d i c a t e s t h e f e d e r a l i t e m n a m e a n d , i f r e q u i r e d , a
minimum description to identify and locate the item. The last line for each item indicates the FSCM
(in parentheses) followed by the part number.
d. Column (4) — Unit of Measure (U/M). This column indicates the measure used in performing the
a c t u a l o p e r a t i o n / m a i n t e n a n c e f u n c t i o n . This measure is expressed by a two-character alphabetical
abbreviation (e. g., ea, in, pr).
e. Column (5) — Quantity Required (Qty Rqr).
authorized to be used with/on the equipment.
This column indicates the quantity of the item
C-1
TM
11-6625-3198-12
Section II. COMPONENTS OF END ITEM
(1)
I L L U S
N U M B E R
(2)
N A T I O N A L
N U M B E R
( 3 )
S TD OE CS KC R I P T I O N
F S C M and P A R T
S I G N A L
( 2 3 3 3 8 )
(4)
(5)
Q T Y
N U M B EU R/ M R Q R
G E N E R A T O E
R
2 8 8
A
1
C A B L E A S S E M B L Y , P O WEE RA
1
( 2 3 3 3 8 )
6 0 0 1 - 8 0 - 0 0 9
5 9 2 0 - 0 0 - 2 2 9 - 1 3F1 U7 S E ,
C A R T R I D G E ,
3 E/ 8 A A M
1 P
2 5 0 V
S L O - B L O
( 7 5 9 1 5 )
3 1 3 - 3 7 5
C-2
TM 11-6625-3198-12
APPENDIX D
ADDITIONAL AUTHORIZATION LIST
Section I.
D-1.
SCOPE.
This appendix lists additional
1288/G.
D-2.
INTRODUCTION
items you are authorized for the support of the Signal Generator SG-
GENERAL.
This list identifies items that do not have to accompany the Signal Generator SG-1288/G and that do
not have to be turned in with it. These items are all authorized to you-by CTA, MTOE, TDA, or JTA.
D-3.
EXPLANATION OF LISTING.
N a t i o n a l s t o c k n u m b e r s , d e s c r i p t i o n s , and quantities are provided to help you identify and request
the additional items you require to support this equipment. The items are listed in alphabetical
sequence by item name under the type document (i. e., CTA, MTOE, TD, or JTA) which authorized the
item(s) to you.
Section II. ADDITIONAL AUTHORIZATION LIST
(1)
NATIONAL
STOCK
NUMBER
(2)
DESCRIPTION
(3)
(4)
U/M
AUTH
QTY
FSCM and PART NUMBER
USABLE ON CODE
5920-00-229-1317
FUSE, CARTRIDGE
3/8 AMP 250V SLO-BLO
(75915) 313-375
EA
1
5920-00-232-3699
FUSE, CARTRIDGE
3/4 AMP 250V SLO-BLO
(75915) 313-750
EA
1
D-1/(D-2 BLANK)
TM 11-6625-3198-12
APPENDIX E
EXPENDABLE SUPPLIES AND MATERIALS LIST
Section I.
E-1.
INTRODUCTION
SCOPE.
This appendix lists expendable supplies you will need for maintenance on Signal Generator SG1288/G. These items are authorized to you by CTA 50-970, Expendable items (Except Medical, Class
V, Repair Parts, and Heraldic Items).
EXPLANATION OF COLUMNS.
E-2.
a.
Column
(1)—Item
Number. This number is assigned to the entry in the listing and is
referenced in the narrative instructions to identify the material (e. g., “Use cleaning compound, item
5, App. D").
b.
Column (2)—Level.
requires the listed item.
This column identifies the lowest level of maintenance that
C - Operator/Crew.
O
-
Unit
Maintenance.
c.
Column (3)—National Stock Number. This column indicates the national stock number
assigned to the item and will be used for requisitioning purposes.
d.
Column (4)—Description. This column indicates the federal item name and if required,
a minimum description to identify the item. The last line for each item indicates the FSCM (in
parentheses) followed by the part number.
e.
Column (5)—Unit of Measure (U/M).
This column indicates the measure used in
performing the actual maintenance function.
This measure is expressed by a two-character
alphabetical abbreviation (e. g., EA, IN, PR). If the unit of measure differs from the unit of issue,
requisition the lowest unit of issue that will satisfy your requirements.
Section Il. EXPENDABLE SUPPLIES AND MATERIALS LIST
(1)
(2)
ITEM
NUMBER
LEVEL
1
O
6810-00-753-4993
Alcohol, Isopropyl, 8OZ Can,
MlL-A-10428, Grade A (81349)
CN
2
C
8305-00-267-3015
Cloth, Cheesecloth, Cotton,
YD
(3)
NATIONAL
STOCK
NUMBER
,
(4)
(5)
DESCRIPTION
U/M
Lintless, CCC-C-440, Type II,
Class 2 (81349)
3
c
Detergent, Mild, Liquid
OZ
E-1/(E-2 BLANK)
TM 11-6625-3198-12
APPENDIX F
REMOTE OPERATION
F-1. SCOPE.
This appendix describes Signal Generator SG-1288/G remote operation (GPIB) procedures using an
external controller. GPIB Digital Interface conforms to IEEE 488-1978 subsets SH1, AH1, SR1, RL1,
PP0, DC1, DT0, CO, T6, L4, TE0, LE0, and E1.
F-2. GENERAL.
Remote operation of the Signal Generator is very similar to local operation, except the commands are
entered and received using an external controller, and not by pressing keys and observing the
display and indicators on the front panel. The GPIB connector permits remote control of all functions
except POWER switch and ADDRESS key.
Refer as necessary to Chapter 2 for descriptions of
controls, indicators, and connectors (para 2-1), and individual operating procedures (para 2-8
through 2-13). Restrictions listed under controls, indicators, and connectors are different for remote
and operation. Under local operation, the command is disregarded and not executed. Under remote
operation, the command may be allowed and executed; however, an SRQ message is generated. Rear
panel GPIB connector input and output information is supplied below.
Pin
Assignment
DIO1
DIO2
DIO3
DIO4
EOI
DAV
NRFD
NDAC
IFC
SRQ
ATN
SHIELD
DIO5
DIO6
DIO7
DIO8
RE N
GND, (6)
GND, (7)
GND, (8)
GND, (9)
GND, (10)
GND, (11)
GND,(5-17)
*
* *
***
Nomenclature
Description
Data In/Out Bit 1 (LSB)
Data In/Out Bit 2
Data In/Out Bit 3
Data In/Out Bit 4
End or Identify
Data Valid
Not Ready for Data
Not Data Accepted
Interface Clear
Service Request
Attention
Data Line*
Data Line*
Data Line*
Data Line*
Interface Line***
Handshake Line**
Handshake Line**
Handshake Line**
Interface Line***
Interface Line***
Interface Line***
Data In/Out Bit
Data In/Out Bit
Data In/Out Bit
Data In/Out Bit
Remote Enable
Data Line*
Data Line*
Data Line*
Data Line*
Interface Line***
Ground
Ground
Ground
Ground
Ground
Ground
Ground
5
6
7
8
Data lines are used to transfer data from one instrument to another.
Handshake lines operate in a proper time sequence for complete communication between
instruments.
Interface lines are used to provide an orderly flow of information between units.
F-1
TM 11-6625-3198-12
F-3. OPERATING PROCEDURES.
Perform the following steps for remote operation of
1.
Signal Generator.
Connect the equipment as shown below.
NOTE
2. Perform turn-on procedure (para 2-6).
3. 0n Signal Generator front panel:
Press LOCAL key (8) and verify D I S P L A Y ( 1 ) i n d i c a t e s G O T O L O C A L , a n d R E M O T E i n d i c a t o r
(6) is out.
Press ADDRESS key (7) and enter desired
CONTROL KNOB (3), or NUMERIC keypad (5) and ENTER key (4). Entry will appear in DISPLAY
(1). Default address 09.
Press PANEL LOCK key (9) if desired.
F-2
TM 11-6625-3198-12
F-4. SG-1288/G COMMANDS.
The Signal Generator may be sent four types of commands:
Parameter commands specify a particular numerical value within a continuous range of
v a l u e s . This command is held until an Execute commancl is given.
Enumerated commands provide a list of distinct choices. This command is held until an
Execute command is given.
Direct commands (such as Reset or Execute) make the Signal Generator perform an immediate
action.
Query command tells the Signal Generator to send information to the controller.
F-5. COMMAND SYNTAX.
A general syntax for a command string is: <HEADER> SPACE< VALUE> TERMINATION,
The header is the command name (full, partial or fully abbreviated) from the device dependant
command table listed in paragraph F-8. The value is the numeric setting from the RANGE column of
the table.
Parameter values may use exponential (E) notation. Enumerated commands can use either the name
or the numerical value (AM may be set by sending either "MA; E" or "M 1; E"). The controller may send
just the command name without a value and the Signal Generator will display that parameter’s current
value in its display. Replacing the numerical value with a "?" (query) will make the Signal Generator
both display and send the parameter’s current value to the controller as a string of characters. Do
not send an Execute command after a query command. The querry command will instruct the Signal
Generator to send specific information after the controller has addressed it to talk. The Execute
command should be sent at the end of a string of commands to put them into effect after testing for
correctness of the whole set up.
F-6. T E R M I N A T O R S .
When the controller sends the SG-1288/G more than one command in a string, then individual
commands should have semicolons (;) inserted between them as terminators. The Signal Generator
will accept either spaces or semicolons, but the semicolons work better in program debugging. If
spaces are used, the Signal Generator will copy (and ignore) all commands after the first defective
command into the SRQ buffer. With semicolons, all good commands are accepted and only defective
ones are put into the SRQ buffer. The closing quote terminates the final command.
F-7. INSTRUMENT PRESET.
The Reset or "R" command resets the Signal Generator to initialized condition described in para 2-6.
F-8. COMMAND LIST.
Operator commands are programmed using an external controller and GPIB commands listed in the
table below. The help (H?) command (HELP) also allows a print out of a simplified command listing
over the GPIB.
NOTE
Talkmode allows control of the messages the Signal Generator will send
when addressed as a talker. This does the same thing as the query
commands and will not be needed by the operator.
F-3
TM 11-6625-3198-12
COMMAND
Amplitude
Amplitude?
A
A?
AutoCalibrate
Calibrationdump?
Execute
FRequency
FRequency?
AC
C
E
FR
FR ?
FUnction
DC
Sine
SQuare
TriangIe
FUnction?
Help?
Modulation mode
Am
RANGE/VALUE
MIN
MAX
1E-3
15
2E -3
20E6
FU
D
SI
SQ
T
FU?
H?
M
A
C
F
0
3
0
2
1
3
0
1
0
2
5
Sweep
Sweep StArt
SweepStOp
Modulationmode?
MaiNParameters?
S
SSA
SSO
M?
MNP?
5
3
4
OFfset
OFfset?
OUtputtype
Balanced 135
Balanced 600
Unbalanced 50
Unbalanced 75
Unbalanced 600
OF
OF?
OU
-5
5
4
B6
U5
U7
U6
0
4
3
0
1
2
OUtputtype?
PhaseLock
External
OU?
PL
E
0
1
1
I
0
Cw
Fm
Internal
B1
PhaseLock?
PL?
Phase
P
– 180
Phase?
PANellock
OFf
ON
PARameterreset
P?
PAN
OFF
ON
PAR
0
0
1
1
RAngelock
RA
0
1
OFF
ON
0
1
OFf
ON
F-4
ABBREVIATION
180
Reset
R
SYmmetry
SYmmetry?
SWeep StArtfreq
SWeep StArtfreq?
SY
5
95
SWSA
S WSA?
2E -3
20E6
SWeep StOpfreq
SWeep StOpfreq?
SWSO
S WSO?
2E-3
20E6
SWeep Time
SWeep Time?
SWT
SWT?
100E-3
100
SRQMask
SRQMask?
SRQM
SRQM?
0
255
Sy?
DESCRIPTION
Set Amplitude
Request current Amplitude
setting
Start Auto-Calibrate
Displays stored calibration data
Execute previous commands
Set Frequency
Request current Frequency
setting
Set Function
Set dc Function
Set Sine Function
Set Square Function
Set Triangle Function
Request current Function setting
Request this Command list
Set ModuIation mode
Set to AM modulation mode
Set to CW modulation mode
Set to FM/VCF ModuIation
Set to Sweep Modulation mode
Set to Sweep start
Set to Sweep stop
Request current Modulation type
Request current main
parameters
Set Offset voltage
Request current Offset value
Set Output type
Set Output to 135 Ω Balanced
Set Output to 600 Ω Balanced
Set Output to 50 Ω Unbalanced
Set Output to 75 Ω Unbalanced
Set Output to 600 Ω
Unbalanced
Request current Output type
Set Phase lock source
Set Phase lock source to
external
Set Phase lock source to
internal
Request current Phase lock
source
Set phase against external
source
Request current phase value
Set Panel lock
Set Panel to unlocked
Set Panel to locked
Reset previously transmitted
parameter
Sets selection of frequency
ranges
Normal ranging
Locks to currently selected
Reset parameters except GPIB
address
Set Symmetry value
Request current Symmetry value
Set Sweep start frequency
Request current Sweep start
frequency
Set Sweep stop frequency
Request current Sweep stop
frequency
Set Sweep time
Request current Sweep time
value
Set Service Request Mask value
Request current SRQ Mask value
TM 11-6625-3198-12
COMMAND
ABBREVIATION
SRQ?
STatus Byte ?
STB?
SErialnumbers?
SE?
STARTCALibration
Talkmode
Version?
STARTCAL
T
V?
RANGE/VALUE
MIN
MAX
0
10
DESCRIPTION
Request current SRQ value
Request current Status Byte
value
Request instrument serial
numbers
Initiate maintenance calibration
Set instrument to send a value
Request software version
number
F-9. UNIVERSAL AND ADDRESSED COMMANDS.
Universal and addressed (U/A) commands make most GPIB instruments perform generally accepted
s t a n d a r d f u n c t i o n s . Usually, universal commands control all of the instruments on the bus, while
The Signal
addressed commands control individual instruments at specific addresses on the bus.
Generator accepts the DCL, GET, GTL, LLO, and SDC commands (these are generic names, consult
with the Controller’s specifications).
F-10. SERVICE REQUEST (SRQ).
The Signal Generator can set the SRQ line to the controller whenever:
A programming error has occurred.
A hardware error has occurred.
An event has been completed.
Phase Iock has changed states.
A message is given to the calibration operator.
SRQ enablement may also be inhibited (masked).
SRQMask (SRQM) makes the Signal Generator
selectively ignore one or more of the above five types of conditions which can make it produce
service requests. These five conditions are shown by their bit positions in the Status Byte in
A given condition is inhibited by sending the S R Q M c o m m a n d f o l l o w e d b y t h e
paragraph F-11.
d e c i m a l v a l u e for its bit position (or s u m o f v a l u e s f o r m o r e t h a n o n e c o n d i t i o n ) .
The SRQM?
command sends this number back.
The SRQ? command makes the Signal Generator send the
contents of the SHQ buffer over the b u s . It sends the data in the format SRQ=MESSAGES, where
MESSAGES represents a string of messages. Reading the SRQ buffer clears it.
F-5
TM 11-6625-3198-12
F-11. STATUS BYTE.
When the controller sends the Signal Generator the STB? command, or when the controller initiates a
serial poll by sending the SPE command and addresses the Signal Generator as a talker, the Signal
Generator sends its current Status Byte. The Status Byte informs the controller of the unit’s status.
The Status Byte format is STB=## where ## is the decimal equivalent of the byte. STB? reads, but
does not reset the Status Byte. A serial poll does. The Status Byte bit positions are as follows:
Function
DIO Line
PE - programming error
HE- hardware error
EV - event
PL - phase lock state change
CM- calibration message
1
2
3
4
5
F-12. SRQ MESSAGES.
SRQ message format is shown below.
Indicates SRQ set
Calibration message
phase Lock state change
Event
Hardware Error
Programming error
RSV
CM
PL
EV
HE
I
PE
Calibration SRQ Messages (maintenance calibration only) are listed below:
●
●
●
●
/CM:1:<cal index><cal name>/
manual
Information message usually requesting a
o p e r a t i o n . <cal index> is a number associated with the
calibration parameter or step that needs attention. <cal
name> is an archaic name associated with the calibration
parameter or step that needs attention.
/CM:2:<caI
<cal name>/
index>:<number>
Information message having an unchangeable number associated
with it. <number> is that number.
/CM:3:<cal index>:<number>
<cal name>/
Request for a numeric calibration parameter. <number> is
the previous value of this parameter.
/CM:4:CALlBRATI0N
PUSHED/
BUTTON
NOT
An attempt has been made to enter the calibration procedure
without the internal calibration enable button pushed.
Phase lock state SRQ messages are listed below:
●
/PL:0 PLL UNLOCKED/
Phlase lock loop has changed from a locked state to an
unlocked state.
●
/PL:0 PLL LOCKED/
Phase lock loop has changed from an unlocked state to a
locked state.
F-6
TM 11-6625-3198-12
Event SRQ messages are listed below:
●
●
/EV:0 AUTOCALIBRATION
COMPLETE/
Autocalibration
/EV:1 EXECUTE COMPLETE/
Execute complete. After an execute command the Signal
Generator will send either this service request or a PE:2
(assuming both PE and EV SRQ’S are enabled by the SRQ
mask).
complete.
Hardware error SRQ messages are listed below:
●
/HE:0:<cal
index><cal
name>
AUTOCAL ERROR/
/HE:1 WAIT < t i m e > M I N /
This is a failure to complete an autocal step. <cal index>
is a number
associated with the calibration parameter that failed
a d j u s t m e n t . ccal name> is an archaic name associated
with the calibration parameter that failed adjustment.
This means an autocal was attempted before the required
20 min warm-up. <time> is the time(in minutes) remaining
before an autocal can be performed.
Programming error SRQ messages are listed below:
●
/PE:0<defective
●
/PE:1<parameter
command
string>/
header>/
/PE:2<param#>:<param
name><param
name>CONFLICT/
The Signal Generator did not recognize the command it
string>
received
<defective
command
is
whatever
garbage was received over the bus.
This is a limit error, an attempt was made to set a. setting
to an illegal value. <parameter header> is the maximum
header string, e.g. “FREQUENCY or “SWEEPS TO PFREQ”.
This is a setting conflict error. This service request will
occur after an EXECUTE command if there are conflicting
settings.
It will only flag the first conflict it finds.
<param #> and <param name> are redundant and are as
follows:
<param#>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
<param name>
FREQUENCY
AMPLITUDE
OFFSET
SYMMETRY
PHASE
FUNCTION
MODULATION
EXTLOCK
OUTPUT
SWP START
SWP STOP
SWP TIME
AMPLITUDE-OFFSET
RANGE LOCK
F-7/(F-8 blank)
TM 11-6625-3198-12
INDEX
Paragraph
Figure, Table,
Number
A
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment and Servicing of Equipment, Preliminary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Administrative Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amplitude Modulation (AM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Army Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-9
3-5
1-4
2-11
1-2
B
Blank Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block Diagram, Signal Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
F1-2
C
Capabilities, Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Characteristics, Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Common Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connectors . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Consolidated Index of Army Publications and Blank Forms . . . . . . . . . . . . . . . . . . . . .
Continuous Wave (CW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Knob Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cross-Reference List, Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-10
1-10
3-1
F2-1, F2-2
1-2
2-9
3-8
F2-1, F2-2
1-8
D
Data, Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description, Functional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Destruction of Army Electronics Materiel to Prevent Enemy Use . . . . . . . . . . .
1-11
1-12
1-5
E
EIR (Reporting Equipment Improvement Recommendations) . . . . . . . . . . . . . . . . . . .
Electronics Materiel, Destruction of to Prevent Enemy Use . . . . . . . . . . . . . . . . . . .
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Characteristics, Capabilities, and Features . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment, Common . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment, Special . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-6
1-5
3-11
1-10
1-11
3-1
3-2
2-7, T2-1
F
Features, Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frequency Modulation (FM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description, General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-10
1-3
2-12
1-12
3-7
G
General Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Generator, Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-12
F1-1
INDEX-1
TM 11-6625-3198-12
INDEX — Continued
Paragraph
Figure, Table,
Number
Subject
I
Index of Army Publications and Blank Forms . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
F2-1, F2-2
L
List of Abbreviations
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-9
M
Maintenance
Maintenance
Modulation,
Modulation,
Modulation,
Forms, Records, and Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
....................................................................................
Sweep
1-3
2-7, T2-1
2-11
2-12
2-10
N
Nomenclature
Cross-Reference
List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-8
0
Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operator: Controls, Indicators, and Connectors, front view . . . . . . . . . . . . . . . . . .
Operators Controls, Indicators, and Connectors, rear view . . . . . . . . . . . . . . . . . . . .
2-8
F2-1
F2-2
P
P a c k a g i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
PMCS Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preliminary Servicing and Adjustment of Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures, Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures, PMCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedures, Turn-On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-9
2-3
3-5
2-5
2-8
2-3
2-6
R
Receipt of Material, Service Upon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replace Control Knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replace Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reporting Equipment Improvement Recommendations (EIR) . . . . . . . . . . . . . . . . . . .
Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INDEX-2
3-4
1-3
3-3
3-8
3-7
1-6
1-3
.
TM 11-6625-3198-12
INDEX — Continued
Paragraph
Figure, Table,
Number
Subject
S
Service Upon Receipt of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing and Adjustment of Equipment, Preliminary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Generator SG-1288/G. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Generator SG-1288/G Simplified Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Simplified Block Diagram, Signal Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools, TM DE, and Support Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage, Administrative. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage, Types of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Support Equipment, Special. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sweep Modulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-4
3-5
F1-1
F1-2
F1-2
3-2
1-11
1-4
3-10
3-2
2-10
T
TMDE, Special . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tools, Common . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tools, Special . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn-On Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-2
3-1
3-2
3-6, T3-1
2-6
3-10
V
Voltage Controlled Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-13
W
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .
1-7
lNDEX-3/(lNDEX-4 BLANK)
By Order of the Secretary of the Army:
CARL E. VUONO
General, United States Army
Chief of Staff
Official:
WILLIAM J. MEEHAN II
Brigadier General, United States Army
The Adjutant General
Distribution:
To be distributed in accordance with special list.
U. S. GOVERNMENT PRINTING OFFICE
1989/612-085/00355
These are the instructions for sending an electronic 2028
The following format must be used if submitting an electronic 2028. The subject line must be
exactly the same and all fields must be included; however only the following fields are
mandatory: 1, 3, 4, 5, 6, 7, 8, 9, 10, 13, 15, 16, 17, and 27.
From:
To:
“Whomever” <whomever@wherever.army.mil>
2028@redstone.army.mil
Subject: DA Form 2028
1. From: Joe Smith
2. Unit: home
3. Address: 4300 Park
4. City: Hometown
5. St: MO
6. Zip: 77777
7. Date Sent: 19--OCT--93
8. Pub no: 55--2840--229--23
9. Pub Title: TM
10. Publication Date: 04--JUL--85
11. Change Number: 7
12. Submitter Rank: MSG
13. Submitter FName: Joe
14. Submitter MName: T
15. Submitter LName: Smith
16. Submitter Phone: 123--123--1234
17. Problem: 1
18. Page: 2
19. Paragraph: 3
20. Line: 4
21. NSN: 5
22. Reference: 6
23. Figure: 7
24. Table: 8
25. Item: 9
26. Total: 123
27. Text:
This is the text for the problem below line 27.
Use Part II (reverse) for Repair Parts and Special Tool Lists (RPSTL) and Supply Catalogs/
Supply Manuals (SC/SM)
RECOMMENDED CHANGES TO PUBLICATIONS AND
BLANK FORMS
DATE
8/30/02
For use of this form, see AR 25--30; the proponent agency is ODISC4.
TO: (Forward to proponent of publication or form)(Include ZIP Code)
FROM: (Activity and location)(Include ZIP Code)
Commander, U.S. Army Aviation and Missile Command
MSG, Jane Q. Doe
ATTN: AMSAM--MMC--MA--NP
1234 Any Street
Redstone Arsenal, 35898
Nowhere Town, AL 34565
PART 1 -- ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS
PUBLICATION/FORM NUMBER
DATE
TM 9--1005--433--24
16 Sep 2002
ITEM
PAGE
PARA--
LINE
FIGURE
TABLE
NO.
NO.
GRAPH
NO. *
NO.
NO.
1
WP0005
2
TITLE Organizational, Direct Support, And General
Support Maintenance Manual for Machine Gun, .50
Caliber M3P and M3P Machine Gun Electrical Test Set
Used On Avenger Air Defense Weapon System
RECOMMENDED CHANGES AND REASON
Test or Corrective Action column should identify a different WP number.
PG 3
* Reference to line numbers within the paragraph or subparagraph.
TYPED NAME, GRADE OR TITLE
MSG, Jane Q. Doe, SFC
DA FORM 2028, FEB 74
TELEPHONE EXCHANGE/
AUTOVON, PLUS EXTENSION
SIGNATURE
788--1234
REPLACES DA FORM 2028, 1 DEC 68, WHICH WILL BE USED.
USAPA V3.01
TO: (Forward direct to addressee listed in publication)
FROM: (Activity and location) (Include ZIP Code)
Commander, U.S. Army Aviation and Missile Command
MSG, Jane Q. Doe
ATTN: AMSAM--MMC--MA--NP
1234 Any Street
Redstone Arsenal, 35898
Nowhere Town, AL 34565
DATE
8/30/02
PART II -- REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS
PUBLICATION NUMBER
DATE
TITLE
PAGE
COLM
LINE
NATIONAL STOCK
REFERENCE
FIGURE
ITEM
NO.
NO.
NO.
NUMBER
NO.
NO.
NO.
TOTAL NO.
OF MAJOR
ITEMS
SUPPORTED
RECOMMENDED ACTION
PART III -- REMARKS (Any general remarks or recommendations, or suggestions for improvement of publications and
blank forms. Additional blank sheets may be used if more space is needed.)
TYPED NAME, GRADE OR TITLE
MSG, Jane Q. Doe, SFC
TELEPHONE EXCHANGE/AUTOVON,
PLUS EXTENSION
SIGNATURE
788--1234
USAPA V3.01
Use Part II (reverse) for Repair Parts and Special Tool Lists (RPSTL) and Supply Catalogs/
Supply Manuals (SC/SM)
RECOMMENDED CHANGES TO PUBLICATIONS AND
BLANK FORMS
DATE
For use of this form, see AR 25--30; the proponent agency is ODISC4.
TO: (Forward to proponent of publication or form)(Include ZIP Code)
Commander, U.S. Army Aviation and Missile Command
ATTN: AMSAM-MMC-MA-NP
Redstone Arsenal, AL 35898
FROM: (Activity and location)(Include ZIP Code)
PART 1 -- ALL PUBLICATIONS (EXCEPT RPSTL AND SC/SM) AND BLANK FORMS
PUBLICATION/FORM NUMBER
DATE
ITEM
PAGE
PARA--
LINE
FIGURE
TABLE
NO.
NO.
GRAPH
NO. *
NO.
NO.
TITLE
RECOMMENDED CHANGES AND REASON
* Reference to line numbers within the paragraph or subparagraph.
TYPED NAME, GRADE OR TITLE
DA FORM 2028, FEB 74
TELEPHONE EXCHANGE/
AUTOVON, PLUS EXTENSION
SIGNATURE
REPLACES DA FORM 2028, 1 DEC 68, WHICH WILL BE USED.
USAPA V3.01
TO: (Forward direct to addressee listed in publication)
Commander, U.S. Army Aviation and Missile Command
ATTN: AMSAM-MMC-MA-NP
Redstone Arsenal, AL 35898
FROM: (Activity and location) (Include ZIP Code)
DATE
PART II -- REPAIR PARTS AND SPECIAL TOOL LISTS AND SUPPLY CATALOGS/SUPPLY MANUALS
PUBLICATION NUMBER
DATE
TITLE
PAGE
COLM
LINE
NATIONAL STOCK
REFERENCE
FIGURE
ITEM
NO.
NO.
NO.
NUMBER
NO.
NO.
NO.
TOTAL NO.
OF MAJOR
ITEMS
SUPPORTED
RECOMMENDED ACTION
PART III -- REMARKS (Any general remarks or recommendations, or suggestions for improvement of publications and
blank forms. Additional blank sheets may be used if more space is needed.)
TYPED NAME, GRADE OR TITLE
TELEPHONE EXCHANGE/AUTOVON,
PLUS EXTENSION
SIGNATURE
USAPA V3.01
PIN: 065401-000
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