TMC 1984 Catalog, Section 3
 MODEL DESCRIPTION BULLETIN
OLD NEW
COR-4B HF/SSB Receiver System 3019B 203-3313
SMR-5 ~ Multi-Channel H.F. Receiver 3010A 203-3312
STR-5 R.F; Strip Receiver 3010-1 203-3311
THE TECHNICAL MATERIEL CORPORATION
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TECHNICAL BULLETIN 3019B
AM/SIDEBAND RADIO RECEIVING SYSTEM, CODAN—OPERATED
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The COR-4B Radio Receiving System (shown
at the right in its three channel configuration)
has been developed specifically for use in the
coastal harbor radio telephone service as a com-
pletely solid state replacement for the Western
Electric Model 23 series of radio receiving equip-
ments currently in use in that service. it has the `
ability to identify the received signal as being
AM/AME or SSB making it ideally suited for ap-
plication on frequencies containing both types
of transmission. The many advantages of solid
state circuitry in the way of low power drain,
efficient heat dissipation, compact size and a
vastly improved reliability, are fully exploited
in the COR system
Each COR-4B system, which consists of one to
four channels each with its associated CODAN
unit, test oscillator and antenna multicoupler,
may be mounted in standard 19” equipment
cabinets for indoor applications or may be en-
closed in weatherproof fiberglass cases designed
for outdoor service. A thermostatic control is
used to regulate an integral fan which prevents
overheating due to absorption of heat from the
sun. As an aid in keeping down the radiant heat
effect, the case is painted white for minimum
absorption. A companion case for housing four
Western Electric KS5361 batteries or equivalent
is also available as an optional accessory. The
system normally operates on AC power with
instantaneous changeover to battery operation
achieved without interruption of service. During
periods of AC operation, the batteries are kept
fully charged by an internal trickle charge. Due
to extremely low power drain, each channel will
operate continuously for a period of approxi-
mately five days on an 85 ampere-hour storage
battery.
Revised 1 August 1971
Supercedes Y -30198
TECHNICAL sp CIFICATIONS
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FREQUENCY IN! URMVMA i ION
Range
2to 16 MHz
2 to 32 MHz available on request
Stability
One part in 108
Control
Oven crystal oscillators
PED 2 TINO DA PAMETCS ©
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Modes
AM(6A3): AME(A3H): USB(A3A,A3J)
Input Impedance
50 ohms nominal, antenna coupler
High impedance vertcal antenna
Tuning
Fixed tuned plug-in RF modules
Sensitivity
SSB 1 ww inout, 15db [S+N] /N
AM 3uv input, 10db [S+N] /N
IF Bandwidth (Selectivity)
SSB 3 KHz, +/-2db
AM 6 KHz, +/-2db symmetrical
AGC Characteristics
Output will not vary more than 10db
for “ange of input from 1 uv
IF Reje
Cor
'ate plug-in
ont panel, any
number of nv Operating frequencies
may be selected.
Remote Control
12 VDC at 9 ma for each of the system
test oscillators
Additional Channels
System may be expanded for additional
Channel operation.
Remote Indications
AC power failure, dry contact to grnd
SSB signal, dry contact to ground
AM signal, dry contact to ground
SPRINGFIELD, VIRGINIA
43733 40.
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(914) 698-4800
AUDIO
Outputs
Adjustable to +10uv into 600 ohm lin.
High impedance monitor jacks for each
Channel on front panel.
RF Bandwidth
7500 Hz at 3db points.
CHARACTERISTICS
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Hum Level
. Min. 40db below full PEP output
intermodulation
Min. 40db below either tone of 5 two
tone test.
Image Rejection
Greater than 120db.
ENVIRONMENTAL AND INSTALLATION
Primary Power
115/230 VAC, 50/60 Hz, 1 ph, 10 watts
OPTIONAL: 24VDC' 12 watts/channel
Operating Conditions
0 to +50%: up to 90% relative humidity
Size and Weight
1 channel: 10%” high X 19” wide
2 channel: 17%” high X 19” wide
3 channel: 26%" high X 19” wide
4 channel: 33%” high X 19” wide
All versions 18" deep.
Loose Items
Mating RF connectors
Two copies of Instruction Manuals
OPTIONAL ACCESSORIES
Model THRA-1 RF Module Storage Panel
Maintains ovens at operating temperature
Model TOC-8 Operating Case
Designed to house four KS5361 batteries
Model CAB-40 Equipment Cabinet
Designed for multiple-channel systems
THE TECHNICAL MATERIEL CORPORATION
700 FENIMORE ROAD + MAMARONECK, NEW YORK 10543
OTTAWA, CANADA + LUZERN, SWITZERLAND + TEMPE, ARIZONA
* (613) 822-0244 e twx 710—566—1100 . telex 013—446
BULLETIN- #7 3010A
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SOLID STATE MULTI-CHANNEL RECEIVER _
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THE TECHNICAL MATERIEL CORPORATION
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SVR-5 GENERAL DESCRIPTION AND APPLICATIONS
The SMR-5 is a completely solid-state multichannel receiver capable of receiving AM, AME,
CW, MCW, SSB and ISB transmissions in the 2-32 MHz frequency range. These units are spe-
cifically designed to provide the latest receiving techniques in modern communication facilities
in a very compact package.
The small size, low heat generation and light weight of these receivers permit multiple
co-located installations in mobile and fixed plant facilities without special cooling arrangements.
Additionally, these receivers may be installed in remote locations and the channel clarifier and
audio lines extended to the operator console.
Eight individual crystal controlled RF heads provide instant selection of any eight operating
frequencies.
The use of all silicon solid-state devices and integrated circuits ensures that stable, reliable
operation will be maintained under all operational and environmental conditions.
FREQUENCY COVERAGE
The SMR-5 series covers the 2 to 32 MHz frequency range via 8 pre-set plug-in modules. Each
module contains a separate RF input and amplifier circuit and stabilized HFO. This method
allows superior shielding and isolation of these critical circuits thereby providing excellent
protection against intermodulation, unwanted IF mixing and other spurious responses.
In addition to the 8 internally mounted plug-in modules, other modules may be stored in
special drawers for rapid access. In this manner, any number of channels may be conveniently
held ready for instant use without warm-up or tuning.
CHANNEL SELECTION
Selection of any one of the 8 plug-in channels is easily accomplished by the rotation of the
front panel selector switch. No additional tuning or peaking is required. Selection and operation
are instantaneous and stable.
In addition, the channel selection may be accomplished by remote control if that option
is selected.
CLARIFIER CONTROL
A frequency vernier control is provided which permits fine-tuning to facilitate operation under
adverse conditions or when receiving from an unstable transmitter.
This contro! is on the front panel and varies a DC voltage across the “varicap” in the HFO
circuit of the plug-in module which is operating. This provides a zero-backlash, infinitely variable
control, which permits precise, stable settings for each channel.
This control may be remoted and provisions have been made on the rear panel of the
receiver to permit this operation.
DUAL IF
Provisions are available to permit the incorporation of two IF boards. This allows maximum
flexibility in the selection of the various modes of reception. Each IF board produces an
independent 600 ohm, balanced audio line output.
BFO DISTRIBUTION BOARD
This board provides BFO inputs to the SSB type IF boards. These signals can be produced
either by using a BFO signal from an external source or by generating a BFO signal using the
oscillator on the internal distribution board. A remote BFO on/off switch may be connected
to the SMR-5 to cut-off the +12 VDC supply in the LSB, USB and ISB modes so that no BFO
signals are produced.
AUDIO/SQUELCH BOARD
The audio input to the audio/squelch board is taken from either the channel A or channel B
audio line signal, depending on the position of the channel selector switch. The audio is then
amplified and applied to the built-in speaker.
The AGC input to the audio/squelch board is applied to the AGC comparator in conjunc-
tion with the squelch input signal as set by the squelch control. When the AGC input is below
the level set by the squelch input, the AGC comparator is in its “ON” condition. This results
in the squelch switch Q2 turning “ON”, thereby squelching the speaker audio amplifier and
cutting off the speaker. The Monitor Lamp on the front panel then goes out, indicating a
squelched condition. This squelch action may be applied to each IF board and used to turn
off the 600 ohm line outputs as well. When the AGC input is above the level set by the squelch
input all the above operations are reversed and audio outputs is available.
METERING BOARD
The input to the metering board is taken from either the Channel A or Channel B audio signal
line. A High/Low switch is used to set the impedance of the meter circuit for high gain
(>3 dbm) and low gain (<3 dbm).
POWER SUPPLY
The AC input is via a stepdown transformer and is rectified by a full wave diode bridge circuit.
The 12 vdc B* is filtered and actively regulated by integrated circuit U1 and distributed
throughout the unit.
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Range
Tuning
Control
Stability
Clarifier
Modes
BFO
HFO
IF
Clarifier
Squelch
Monitor Lamp
Sensitivity; 3 KHz bandwidth
IF Selectivity
IF Frequency
Image Rejection
intermodulation
AGC
Hum and Noise Level
Input Impedance
Audio Outputs
Speaker
Environmental
Dimensions
Weight
Power Requirements
TECHNICAL SPECIFICATIONS
2-32 MHz (1.6 - 32 MHz on special order)
8 plug-in modules. Each of the plug-in modules is fix-tuned to a particular
frequency within its band. Tuning is accomplished by switching to the
appropriate plug-in module.
Compensated crystal-controlied oscillators are used throughout.
1 part per million per 24 hours.
A common clarifier control is provided to fine-tune the HFO in each module.
SSB, ISB, AM, AME, CW, MCW.
Selection of either internal or external BFO modes is available.
Each plug-in module contains its own oven controlled HFO. In addition,
jacks are provided for external HFO ipput and output.
Three separate IF boards may be incorporated. In addition, during AM opera-
tion, an IF monitor output is provided in J16 on the rear apron.
Provisions are available for the use of a remote clarifier in lieu of the
integral control provided.
An adjustable squelch circuit is incorporated.
A front panel indicating device is incorporated to indicate the squelched
or unsquelched receiver condition.
SSB: 1 uv for 155 db S + N
N
AM: 3uvfor10dbS + N
N
SSB: 3 KHz —2 db
AM: 6 KHz =2 db
1.75 MHz
At least 60 db; 2-16 MHz
At least 50 db; 16-32 MHz
40 db below a 100 uv two-tone input at the antenna.
100 db RF dynamic range from 1 uv; will not vary more than 10 db.
At least 40 db below full output.
50 ohms, unbalanced.
0-8 dbm at 600 ohms; two channels.
Built-in
0°C to 50°C, 95% humidity.
13 inches (33.02 cm) deep; 19 inches (48.26 cm) wide; 7 inches (17.78 cm) high.
45 Ibs. (20.43 kg).
104/115/125/208/230/250 VAC, + 10%, single phase, 50/60 Hz.
BULLETIN - # 3010 A
TMC
- À SOLID STATE MULTI-CHANNEL RECEIVER
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Ideal for Operation (1, — + GROUND TO AIR
SHIP TO SHORE
HARBOR CIRCUITS
PLEASURE CIRCUITS
TACTICAL COMMAND
AMPHIBIOUS CONTROL
DOUE 63. MHz TRANSMISSION MONITOR
8-12, 12-16 MHz
Buy what you need!
OVEN CONTROLLED
CRYSTAL FILTER
THE TECHNICAL MATERIEL CORPORATION
700 FENIMORE ROAD « MAMARONECK, NEW YORK 10543
SPRINGFIELD, VIRGINIA + OTTAWA, CANADA + LUZERN, SWITZERLAND + TEMPE, ARIZONA
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TECHNICAL BULLETIN 3010-1
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SINGLE CHANNEL SIDEBAND STRIP RECEIVER
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; The Model! STR-5 fixed-tuned receiver is a versatile unit capable of receiving CW, MCW,
3 AM AME, SSB and ISB transmissions in the 2 to 30 MHz frequency range. Through the
E use of unique semi-conductor circuits and individual fixed-tuned plug-in modules, these
5 devices provide excellent sensitivity and image rejection characteristics in a minimum of
space. With its low power drain and high reliability, the receiver is best suited for unatt-
ended operations at remote sites for monitoring selected frequencies.
4 Special interface equipment is available which permits automatic detection and switching
a between AM and sideband signals. This feature enables compatible operation for those
и stations working both AM and sideband traffic during this period of conversion.
Standard contro! units are available for the remoting of the clarifier, mode switching and
audio functions. In addition, a loudspeaker monitor panel can be provided for up to four
3 channels and is particularly useful with multiple-STR installations. These optional acces-
3 sories enable complete control of receiver stations located at remote sites.
Revised 1 August 1971
Supersedes 3014A
TECHNICAL SPECIFICATIONS
FREQUENCY INFORMATION
Range
2 to 32 MHz
Stability
+/— 10 Hz, 0 to +50°C
Optional: —30 to +50°C
Control
Crystal-controlled plug-in modules.
OPERATING PARAMETERS
Modes
CW(A1); MCW(A2H); AM(A3)
AME(A3H).
OPTIONAL:
USB(A3A,A3J)
USB; LSB; ISB(A3B)
Input Impedance
50 ohms nominal, unbalanced
Speech Clarifier
Front panel adjust for “fine tune”
of the HFO oscillator.
Remote Control available on request.
Sensitivity
SSB 1 uv input, 15db [S+N] /N
AM 1 uv input, 10db [S+N]/N
IF Selectivity
SSB 3 KHz, +/— 2db
AM 6 KHz, +/— 2db symmetrical
AGC Characteristics
Output will not vary more than 10db
for 100db change of input from 1 uv.
IF Frequency
1750 KHz.
Conversion Capability
Receiver can be changed to another
operating frequency by changing the
appropriate plug-in module at the
front panel.
AUDIO
Amplifier Response
250-7500 Hz.
Outputs
0 to +12dbm into 600-ohm balanced
output for each channel. Pane! jacks.
CHARACTERISTICS
Hum Level
Min. 40db below full PEP output
Intermodulation
“Min. 40db below either tone of a standard
two tone test with 100 uv. input signal.
Image Rejection
Min. 60db from 2 to 16 MHz.
Min. 50db from 16 to 32 MHz.
ENVIRONMENTAL AND INSTALLATION
Primary Power
115 VAC, 50/60 Hz, single phase
OPTIONAL: 104/125/208/230/250 VAC
OPTIONAL: 12 VDC operation.
Operating Conditions
—30 to +50°C; up to 90% relative humidity
Size and Weight
1%" high X 19” wide X 15" deep
Approximately 15 ibs.
OPTIONAL ACCESSORIES
Model THRA-1 RF Module Storage Panel
Maintains ovens at operating temperature
Model CDN-3 Codan-Operated Anti-Noise Device
Used to detect AM or SSB signals
Model RCC-1 Receiver Remote Control Unit
Remote control of clarifier, mode, audio.
THE TECHNICAL MATERIEL CORPORATION
e” .E: 700 FENIMORE ROAD *« MAMARONECK, NEW YORK 10543
\ §F SPRINGFIELD, VIRGINIA + OTTAWA, CANADA + LUZERN, SWITZERLAND + TEMPE, ARIZONA
(914) 698-4800 e (613) 822-0244 e twx 710—566—1100 telex 013—446
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