Futronic GMDSS-AIS-SART Test Box User`s Manual

Futronic GMDSS-AIS-SART Test Box User`s Manual
Futronic GMDSS-AIS-SART Test Box
User’s Manual
Version 13-09-2013
DANPHONE A/S
Klokkestoebervej 4. DK-9490 Pandrup. Denmark
Tel: +45 96 44 44 44. Fax: +45 96 44 44 45
E-mail: info@danphone.com
www.danphone.com
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2
INTRODUCTION
This manual covers the full-featured test box for GMDSS tests, AIS tests and Radar
SART tests. If your test box does not include all these features, you are kindly requested
to disregard the related sections in this manual.
AIS Tests
The test box is capable of testing AIS transponders by making frequency measurements and
power measurements on CH 70, AIS channel 1 or AIS channel 2.
It is possible to check the GMDSS communication on CH 70 by requesting reporting of Position,
Length, Course, Name/Identity, Speed, Power or Ship’s beam.
AIS communication is checked by sending data to an AIS transponder or receiving data from an
AIS transponder.
The test box is able to simulate a ship appearing at four different positions, relative to the AIS
transponder’s position.
The test box can also be used for the testing of AIS-SART emergency beacons, as it can
receive and decode test calls on AIS channel 1 and 2.
GMDSS Tests
The test box can check DSC signals transmitted on any of the 6 distress frequencies on MF/HF
and on VHF CH 70.
The test box can send either a GMDSS distress signal (all ships call) or a selective test call
addressed to a particular MMSI number. The calls can be sent on any of the 6 distress
frequencies on MF/HF as well as on VHF CH 70. Furthermore, the test box can send and
receive DSC signals on the international calling frequencies 2177.0 and 2189.5 kHz.
The test box measures and displays the mark/space frequencies of the received DSC-signals.
When used as an ordinary frequency counter the test box measures frequencies in the range
0.4 MHz to 475 MHz.
On VHF CH 6 the test box can measure the deviation on a received signal.
The test box is able to measure the transmitted and reflected power on any VHF channel, and
also to test the sensitivity of the receiver part.
For the testing of NAVTEX receivers, the test box can send NAVTEX signals on 490 kHz, 518
kHz or 4209.5 kHz.
The test box can also be used for control of signals from EPIRBs, as it can receive and decode
test calls on 406.025 / .028 / .037 /.040 MHz as well as receive the 121.5 MHz homing signal.
All measurements can be monitored on the LCD display and results are stored in the test box
memory from where it can be transferred to a PC for subsequent printing.
3
TABLE OF CONTENTS
TEST BOX ...............................................................................................................................6
Front View ............................................................................................................................6
Rear View.............................................................................................................................6
ACCESSORIES .......................................................................................................................7
POWER SUPPLY.....................................................................................................................8
POWER ON AND WARM-UP ..................................................................................................8
PUSH BUTTON CONTROL .....................................................................................................8
TIME SETTING ........................................................................................................................8
SELF TEST ..............................................................................................................................9
OVERVIEW OF TEST MODES..............................................................................................10
Main Menu..........................................................................................................................10
TESTING AIS TRANSPONDERS ..........................................................................................12
Frequency Measurement ...................................................................................................12
Power Measurement ..........................................................................................................13
GMDSS Comm. CH 70 ......................................................................................................15
AIS Receive........................................................................................................................16
AIS Rec. Loop ....................................................................................................................16
AIS-SART TEST.................................................................................................................17
AIS Test Send ....................................................................................................................18
Request Message 5 ...........................................................................................................19
Simulate Ship .....................................................................................................................19
NMEA Test .........................................................................................................................19
TESTING GMDSS EQUIPMENT ...........................................................................................20
Edit MMSI Number .............................................................................................................20
Carrier Ampl. ......................................................................................................................20
Sensitivity Test ...................................................................................................................21
Send DSC ..........................................................................................................................21
Custom Message ...............................................................................................................22
Send NAVTEX....................................................................................................................24
Receive ATIS .....................................................................................................................26
VHF Power Measurement ..................................................................................................27
FM Deviation ......................................................................................................................28
AM / 123.1 MHz.................................................................................................................28
EPIRB Test.........................................................................................................................29
RADAR SART Test (Optional) ...............................................................................................31
FREQUENCY COUNTER ......................................................................................................33
MEMORY FUNCTION............................................................................................................34
How to transfer test results and AIS data to a PC..............................................................34
4
TECHNICAL SPECIFICATIONS ............................................................................................35
PERFORMANCE CHECK......................................................................................................35
CALIBRATION .......................................................................................................................36
General...............................................................................................................................36
OCXO frequency ................................................................................................................36
FM deviation.......................................................................................................................36
Power measurement ..........................................................................................................36
MESSAGE COMPOSER AND DECODER SOFTWARE.......................................................37
Manual................................................................................................................................37
DSC Message Composer...................................................................................................38
AIS Message Composer ....................................................................................................39
AIS Monitor / Message Decoder .......................................................................................40
NMEA String Composer .....................................................................................................41
USER’S OWN NOTES: ..........................................................................................................41
5
TEST BOX
Front View
1
2
1
2–5
6
7
3
4
5
6
Two-Line LCD display
Push buttons
BNC socket for signal output
BNC socket for signal input
9
Rear View
1
1
2
3
4
5
6
7
8
9
7
2
3
4
5
8
6
7
BNC socket for connection to VHF antenna
9-pin D-sub plug for connection to NMEA input, PC or serial printer
BNC socket for AIS DATA OUT (If installed)
BNC socket for connection to VHF transmitter
RADAR-SART Antenna (If installed)
Fuse for 12V Battery
DC plug for connection to external power supply
Slide switch for switching the test box ON/OFF
BNC socket for connection of VHF dummy load
6
ACCESSORIES
The test box comes with the following standard accessories:
1 pcs
1 1 1 1 1 1 1 2 1 2 1 1 1 1 -
Power adaptor 100-240 VAC / 15VDC
Cable for external DC power
RS232 cable for PC (pin1 to pin1, pin2 to pin2, etc.)
1 kHz AF generator
AIS signal combiner / dummy load
Telescopic antenna for VHF/AIS
Wire antenna for MF/HF/NAVTEX
Coax cable, 25 cm, with BNC
Coax cable, 168 cm, with BNC
Coax cable, 500 cm, with BNC
UHF plug to BNC socket adapter
UHF socket to BNC socket adapter
BNC female to BNC female adapter
User’s Manual in English
Calibration Certificate
The following accessories are available as an option:
RF Amplifier
If the test box signal is not strong enough when testing NAVTEX receivers and MF radios over
the air, adding this RF amplifier will increase the output level by 15-20 dB.
Watertight and Crush Proof Case
This case is specially configured to hold the tester and accessories safe and secure. Weight
only 3.9 kgs. External dimensions: 486 x 392 x 192 mm.
7
POWER SUPPLY
The test box has an internal DC/DC switch mode power supply that can be connected directly to
an external DC source of 15 - 28 V (+ on the center pin).
Furthermore, a wall plug power supply allows the test box to be connected to 100 - 240 V AC,
50-60 Hz.
The test box is equipped with an internal rechargeable 12 V battery. Whenever DC is connected
to the test box, the battery is charged. If the DC supply is removed, the internal battery delivers
DC to the test box and gives an uninterrupted switch between external and internal DC supply.
Before using the test box in the field, make sure that the internal battery is fully charged.
When the internal battery is close to being discharged this is indicated by a blinking on the LCD
display and then, shortly after this, the power is cut off so as not to damage the battery.
A power shutdown does not influence data stored in the test box, as the data storage has a
separate back up battery.
POWER ON AND WARM-UP
After power on, the software revision date is shown in the LCD-display. The letter in the end
describes the hardware version.
After a few seconds the display switches automatically to time mode. Before moving further on,
allow the test box 3 to 10 minutes’ warm-up time in order to make the OCXO stable. The warmup time depends on the temperature of the test box before warm-up. At a temperature of 20ºC,
3 minutes should be OK.
PUSH BUTTON CONTROL
The test box is controlled by means of 4 push buttons marked MODE, UP, DOWN and OK.
MODE is used to scroll down to the various test modes. UP can be used to scroll up.
OK is used to enter the mode being shown in the display.
UP and DOWN are used if the display offers multiple options, e.g. shifting between various
frequencies, setting the time and editing the MMSI number.
Usually, help texts in the display indicate which buttons should be used. Then, use the button
located directly under the actual text.
TIME SETTING
In the time setting mode, accept the date already presented, or set a new date, month and year
and press END. When the time is set, the test box will display the status of the internal memory,
i.e. how many recordings can still be stored in the test box. Then, press OK and go to the selftest as described below.
8
SELF TEST
In the SELFTEST mode it's possible to check the function of some of the circuits in the test box.
This should be used to check the test box before it is used for inspection of a GMDSS
installation. The following self-test functions can be performed:
PLL-TEST: This mode performs an automatic test to assure that the frequency synthesizer
controlled oscillator goes into "lock" at all the applied synthesis frequencies. The frequency
synthesizer controlled oscillator is programmed to each frequency in turn and then the "lock
detect" output is watched for about 1 sec. to check for a correct lock. In case of a lock failure,
the test is stopped and the LCD display indicates the frequency out of lock. The test continues
when one of the push buttons are activated.
FRQ TEST: This mode is used for test of the MARK/SPACE frequencies in the MF/HF range by
means of the internal frequency counter.
To check the generation and measurement of MF/HF mark/space frequencies, connect a coax
cable from RF IN to RF OUT, choose the MF/HF frequency to be checked and select MARK or
SPACE:
FRQ TEST gives the possibility for control of MF/HF MARK/SPACE frequencies as well as the
frequency counter as the chosen MARK/SPACE frequency is available at the RF OUT socket
and can be measured via RF IN. The result is shown on the LCD display. The SPACE
frequency should be 85 Hz higher than the centre frequency. The MARK frequency should be
85 Hz lower than the centre frequency.
9
OVERVIEW OF TEST MODES
The table below shows the mode and menu tree. Modes and menus, test setups and
measurements are explained in more detail on page 12 and onwards.
Mode
SELF TEST
Main Menu
Sub Menu 1
Sub Menu 2
FRQ
FREQUENCY
MARK
SPACE
PLL-TEST
FRQ MEASUREMENT
CH70
AIS 1
AIS2
PWR MEASUREMENT
CH70
AIS 1 / 2
OK
CH 70
NEXT
CH 06
CH 15
POLL DATA
DATA
LCD
CLR
RS232
GMDSS COMM. CH 70
AIS RECEIVE
AIS 1
AIS 2
DATA
AIS REC. LOOP
LCD
CLR
RS232
AIS 1
AIS 2
AIS TEST
DATA
AIS-SART TEST
LCD
CLR
RS232
AIS 1
AIS 2
PC
AIS TEST SEND
DATA FROM PC
AIS 1
AIS 2
AIS 1
AIS 2
REQUEST MSG 5
LONG RANGE
AIS 1
AIS 2
SHORT RANGE
AIS 1
AIS 2
CUST
PC
SEND
HDG
SEND
SIMULATE SHIP
NMEA TEST
10
Mode
Main Menu
Sub Menu 1
CARRIER AMPL.
2187.5 kHz
16804.5 kHz
156.300 MHz
156.525 MHz
SENSITIVITY TEST
CH 06
CH 13
CH 16
CH 67
EDIT MMSI NR.
MMSI Number
Hour/Date/Month/Year
DISTR
VHF
MF/HF
TEST
VHF
TFC
MF/HF
GET
DATA FROM PC
SEND
VHF
TFC
MF/HF
SEND DSC
CUSTOM MESSAGE
SEND NAVTEX
490 kHz
518 kHz
4209.5 kHz
RECEIVE DSC
VHF
TFC
MF/HF
RECEIVE ATIS
CH 06
CH 15
VHF PWR MEASURE
CONT
MEAS
FM DEVIATION
CAL
MEAS
GMDSS TEST
IMG
FRQ
AF
ORD
FRQ
AF
AM / 123.1 MHZ
MEMORY FUNCTION
CLR
SELE
RS232
EPIRB TEST
406.025 MHz
406.028 MHz
406.037 MHz
406.040 MHz
121.5 MHz
RADAR SART TEST
SART TEST
SART NO.
FREQUENCY COUNTER
FRQ COUNT
0.4 to 475 MHz
11
Sub Menu 2
DATA
FRQ
MEAS
MEAS
CONT
TESTING AIS TRANSPONDERS
Go to the AIS TEST mode and scroll through the various sub modes by pressing the MODE
button or the UP button.
Before you start testing, remember to enter the AIS transponder’s
MMSI number into the test box.
You can check the actual number registered by the test box in the EDIT MMSI menu as shown
on page 20. In this menu you can also edit the number or enter a new one, if required.
The MMSSI number can also be automatically transferred to the test box by receiving an AIS1
or AIS2 call from the transponder. Use the setup shown on page 16: AIS RECEIVE.
Some approved AIS transponders do not facilitate communication
on CH70. In this case the testing of frequency, output power and
polling information are not applicable for CH70.
Frequency Measurement
Pressing OK in the frequency measurement mode gives you a choice between frequency
measurements on CH 70, AIS1 or AIS2.
For frequency measurements on the AIS1 and AIS2 channels, use this setup:
AIS TRANSPONDER
ANT.
Frequency measurement on CH 70 requires the use of the signal combiner delivered with the
test box and this setup:
SIGNAL
COMBINER
AIS TRANSPONDER
ANT
Example of Printout from the Memory:
CONTROL MEASUREMENT ON MMSI NO.: 0036699900 - HOUR:04 DATE:03-08-2005
AIS - AIS1: 161,975.0KHZ, LEVEL: 178
AIS - AIS2: 162,025.0KHZ, LEVEL: 176
AIS – CH 70: 156,525.2KHZ, LEVEL: 171
12
Power Measurement
For measuring the output power on AIS channel 1 or 2, use the setup below and wait for the
automatic transmission from the AIS transponder.
The test box must receive a trigger signal on RF IN in order to start the power measurement. If
the test box waits for more than 20 seconds, the trigger signal level might be too low. Then
connect a VHF antenna to RF IN (dotted figure):
AIS TRANSPONDER
ANT.
Alternatively, use this setup:
SIGNAL
COMBINER
AIS TRANSPONDER
ANT
13
For measuring the output power on CH70, use the setup below.
The antenna on RF OUT is used for the test box to send a request to the AIS transponder to do
a transmission on CH70.
The test box must receive a trigger signal on RF IN in order to start the power measurement. If
the test box waits for more than 20 seconds, the trigger signal level might be too low. Then
connect a VHF antenna to RF IN (dotted figure):
AIS TRANSPONDER
ANT.
Alternatively, use this setup:
SIGNAL
COMBINER
AIS TRANSPONDER
ANT
Example of Printout from the Memory:
CONTROL MEASUREMENT ON MMSI NO.: 0036699900 - HOUR:04 DATE:03-08-2005
AIS – CH 70: FORWARD: 12.0W REFLECT: <0.5W
AIS: FORWARD: 12.0W REFLECT: <0.5W
14
GMDSS Comm. CH 70
With the GMDSS COMM. CH 70 mode and the setup below, the test box can be used to poll
AIS information from the transponder on CH70 or on the alternative channels 06 and 15.
SIGNAL
COMBINER
AIS TRANSPONDER
ANT
The AIS transponder can be polled for information on position, length, course, name/identity,
acknowledge message, speed and VTS expansion.
In the GMDSS COMM. CH 70 mode, press OK.
In the SWITCH VHF CH 70 mode:
- press OK if you wish to set the transponder to CH 70,
- press NEXT and OK if you wish to set the transponder to CH 06,
- press NEXT again and OK if you wish to set the transponder to CH 15.
- press NEXT again and OK to poll position,
- press NEXT again and OK to poll length,
- press NEXT again and OK to poll … etc.
After each polling, wait for the transponder to respond and check the polling data appearing on
the test box display. Upon your OK, the test box will return to the SWITCH VHF CH 70 mode,
from where you can scroll down to the next polling, and so on.
Note, that the VTS EXPANSION mode has two sub modes: TRANSMITTER POWER LEVEL
and SHIPS BEAM.
If you select the alternative channels 06 or 15, remember to switch back to CH 70 later on using
the SWITCH VHF CH 70 menu.
Example of Printout from the Memory:
MEASUREMENT MADE BY GMDSST SERIAL NUMBER: 20091013 SW: Rev 1.Feb.2010I
CONTROL MEASUREMENT ON MMSI NO.: 2195576240 - HOUR:05 DATE:01-02-2010
CH70-156.525MHZ FORMAT: 120 ADR.:9999999990 CAT.: 103
SELFID.:2195576240 POSITION: 57d12.3827' N 009d40.6788' E TIME: 14:04:50
CH70-156.525MHZ FORMAT: 120 ADR.:9999999990 CAT.: 103
SELFID.:2195576240 LENGTH OF SHIP: 70M
CH70-156.525MHZ FORMAT: 120 ADR.:9999999990 CAT.: 103
SELFID.:2195576240 MESSAGE ACKNOWLEDGED
15
AIS Receive
This setup is used for AIS RECEIVE and AIS REC. LOOP:
SIGNAL
COMBINER
AIS TRANSPONDER
ANT
In the AIS RECEIVE mode you have a choice between DATA, AIS1 and AIS2.
Selecting AIS1 or AIS2 enables the test box to receive and store one set of data on AIS1 or
AIS2. Note, that it may take up to 20 seconds until the AIS transponder transmits its data.
Selecting DATA offers three further options:
LCD displays the list of received AIS messages by MMSI number and message type. The
messages are displayed in order of time as received with the latest message first. You may
toggle between the messages and then press OK repeatedly to view the encoded data.
CLR clears the test box memory of old AIS data.
RS232 sends the received AIS data out on the RS232 connector, from which the data can be
transferred to your PC via the RS232 cable supplied with the test box. See page 34.
Example of Printout from the AIS Memory:
$AIS2 04 1A 9F 3F 2E 20 3F F3 3C 8D 60 34 12 14 0E 10 FF F8 06 70 F0
Coded AIS data can be decoded and viewed by using the decoding option of the Custom
Message Software available for download at Danphone’s website. See page 37.
AIS Rec. Loop
In this mode you also have a choice between DATA, AIS1 and AIS2.
Selecting AIS1 or AIS2 enables the test box to continuously receive data on AIS1 or AIS2.
Selecting DATA offers three further options:
LCD displays the list of received AIS messages by MMSI number and message type. The
messages are displayed in order of time as received with the latest message first. You may
toggle between the messages and then press OK repeatedly to view the encoded data.
CLR clears the test box memory of old AIS data.
RS232 sends the AIS data to the RS232 connector, from which the data can be transferred to
your PC via the RS232 cable supplied with the test box. See page 34.
16
AIS-SART TEST
AIS-SART
0.5 – 1 meter
When performing AIS-SART tests, always use the test mode on the device. Doing so, the
beacon will radiate an AIS message of type 14 with the text “AIS TEST” along with an AIS
message of type 1 containing the beacon’s actual position and other AIS data. By receiving
these two messages the test box confirms that the AIS SART is working all right.
If the AIS-SART is accidentally activated in the emergency transmission mode, it will radiate the
text “AIS ACTIVE”. This will alert nearby ships and coast stations. Then, the device should be
turned off at once and the false alert reported to the nearest coast guard station or Search and
Rescue centre.
When performing AIS-SART tests, do NOT use an antenna with the test box. Place the beacon
within a range of 0.5 – 1 meter and do as follows:
1) On the test box, select AIS-SART TEST and AIS channel 1 or 2. Then the display will show
“Waiting for AIS TX” on the actual AIS channel.
2) Activate the AIS-SART in test mode. It may take several minutes until the AIS-SART has
found its position and will transmit the messages accordingly.
3) As soon as the AIS Message 1 and Message 14 are both received, the display will change
from “Waiting” to presenting the messages. This also confirms that they are now stored in the
test box AIS memory.
4) Press PREV or NEXT to toggle between the received messages. Please note, that there
might be old AIS messages as well in the list. The messages are displayed in order of time as
received with the latest message first.
5) Under each message, press OK repeatedly to view the encoded data.
Received AIS messages can also be accessed from the AIS-SART TEST entry mode. Selecting
DATA here offers these three options:
LCD displays the list of received AIS messages.
CLR clears the test box memory of old AIS data.
RS232 sends the received AIS data to the RS232 connector, from which the data can be
transferred to your PC via the RS232 cable supplied with the test box. See page 34.
17
AIS Test Send
This setup is used for AIS TEST SEND, REQUEST MSG5 and SIMULATE SHIP:
SIGNAL
COMBINER
AIS TRANSPONDER
ANT
Performing the AIS TEST SEND requires that a test message has been loaded into the test box
AIS memory. Such message can be either a custom-made message prepared on a PC, or a
fixed default message 1 available from the test box.
To prepare a custom made AIS message on a PC, make use of the Custom Message
Composer software that can be downloaded from Danphone’s website. See page 37.
Once composed, the message can be transferred from the PC to the test box via the RS232
cable supplied with the test box. Connect the cable and select AIS TEST SEND on the test box
and press OK. Then press PC and the display shows RECEIVE DATA FROM PC. Press
“Transfer” on the PC. This will load the message into to the test box.
If you do not wish to load a custom-made message, the test box enables you to load a fixed
default message 1. The method of loading the default message into the test box is as follows:
Select AIS TEST SEND and press OK. Then select PC and press END. Please note, that the
fixed default message 1 includes a vessel position of 45°N 45°W.
To transmit a test message from the test box, select AIS TEST SEND and press OK. Then
press either AIS1 or AIS2 and the test box will automatically synchronize with the AIS
transponder. Waiting for synchronization may take up to 20 seconds. However, pressing the OK
button during “waiting” will start the transmission immediately.
The test message will be kept in the test box memory. Next time you wish to transmit the
message, just select AIS TEST SEND and press either AIS1 or AIS2.
18
Request Message 5
The mode REQUEST MSG 5 uses the MMSI number from the last received AIS message.
Press OK and select AIS channel, and the test box will automatically synchronize with the AIS
transponder, transmit the request and then switch to receiving mode.
Example of Printout from the AIS Memory:
$AIS1 14 1A 9F 3F 2C 1A 76 E7 00 60 D3 80 94 C0 19 55 12 3C E2 43 00 00 00 00 00
00 00 00 00 14 02 81 8D 24 2D 8C 01 91 00 4E 11 25 50 00 00 00 00 00 00 00 00 00 00*
Coded AIS data can be decoded and viewed by using the decoding option of the Message
Composer and Decoder Software available for download at Danphone’s website. See page 37.
Simulate Ship
The SIMULATE SHIP is a mode in which a virtual ship is placed at four different positions
relative to the position of the AIS transponder being tested.
Using the SIMULATE SHIP mode requires that the test box has received a position from the
transponder, for instance via MSG1 or 3.
If an AIS transponder does not register its own position, for instance due to
a broken or missing GPS antenna, it will transmit an invalid position of 91°N
181°E. Please note, that some transponders do not accept invalid positions
and will consequently not display them.
In the SIMULATE SHIP mode, press Short or Long to initiate transmissions from the test box.
Select Short if you wish to have the virtual ship placed at a short distance (∼50 meter) around
the transponder. Select Long if you wish to have the ship placed at a longer distance (∼800
meter).
After transmission of the first position, the test box waits for response from the AIS transponder
before the next position is transmitted, and so on.
NMEA Test
With the NMEA TEST mode, the test box can transmit NMEA signals via the RS232 port (Bsignal on pin no. 1, Ground on pin no. 5 and A-signal on pin no. 9).
The NMEA test mode offers you a choice between CUST. and HDG.
Select HDG. (= Heading) in order to transmit a standard NMEA heading signal.
Select CUST. (= Custom sub mode) in order to transmit a custom-made NMEA string. You can
compose and store the string yourself using the Message Composer and Decoder Software
available for download at Danphone’s website. See page 37.
19
TESTING GMDSS EQUIPMENT
Before you start testing, remember to enter the GMDSS station’s MMSI
number into the test box.
You can check the current MMSI number registered by the test box in the EDIT MMSI menu as
described below. In this menu you can also edit the number or enter a new one, if required.
The MMSSI number can also be automatically entered in the test box by receiving a DSC call
from the GMDSS station. Use the setup shown on page 25: RECEIVE DSC.
Edit MMSI Number
By pressing the OK button in this menu, the display will show the current MMSI number
registered by the test box. The number can also be edited: Pressing UP or DOWN changes the
digit marked by the cursor. Pressing OK moves the cursor to the next digit.
In the editing mode, the number displayed is a 10-digit number. It is the
9-digit MMSI number followed by an extra digit that is usually set to 0.
When editing is completed, press MODE.
After editing the MMSI number it is possible to set the time and date (hour/date/month/year).
When the time and date setting is completed, press the MODE button. Then the display shows
how many free records are left in the memory. Initially, there are 719 records available.
Carrier Ampl.
The CARRIER AMPL. mode can be used to check the signal strength level of the received
signals at the following frequencies: 2187.5 kHz, 16804.5 kHz, 156.300 MHz and 156.525 MHz.
GMDSS TRANSMITTER
ANT.
The level figure is used to indicate if the signal strength is sufficient to ensure proper radio
communication between the test box and the GMDSS station during the following tests.
To measure the actual signal strength level, select CARRIER AMPL. and frequency. Then,
press OK and start transmission from the GMDSS station. The signal strength level appears in
the test box display. A figure of 70 or higher is advisable.
Press OK again to leave the CARRIER AMPL. mode again.
20
Sensitivity Test
In the sensitivity test mode, the test box outputs a modulated signal on VHF channels 6, 13, 16
and 67 respectively. With an external attenuator this test can be used to check the sensitivity
of a ship's VHF radio. The modulated signal can be heard and checked in the radio’s speaker.
With sensitivity tests, use this setup:
VHF RECEIVER
ATTENUATOR
ANT.
Select SENSITIVITY TEST and press OK. CH06 will appear as the default channel in the
display. Other channels can be selected by pressing the UP or DOWN button. At the desired
frequency, press SEND and the test box will keep sending the modulated signal. To stop the
transmission, press END.
In the sensitivity test mode, it is very important to use coax cables for the connection of the
equipment.
For reference, the test box RF output level is approx. -36 +/- 2 dBm.
This test mode can also be used to simply check if the modulated signal is well received over
the air:
VHF RECEIVER
ANT.
Send DSC
In preparation of making DSC test calls, the first choice is to decide if a distress call (DISTR) or
a selective test call (TEST) is to be transmitted.
In the DISTR mode, there is a choice between VHF and MF/HF.
At VHF the frequency for CH 70 is shown, and pressing OK initiates a transmission.
At MF/HF, select the desired frequency with the UP/DOWN buttons. Press OK at the desired
frequency, and the call sequence will be transmitted.
In the TEST mode, there is a choice between VHF on 156.525 MHz, TFC on 2177.0 kHz or
2189.5 kHz, and MF/HF on 2187.5 kHz, 4207.5 kHz, 6312.0 kHz, 8414.5 kHz, 12577.0 kHz or
16804.5 kHz.
At MF/HF and TFC TEST calls, there is a choice between reduced power (-70 dBm) and normal
power (-15 dBm).
21
Send a DSC Distress Call
GMDSS RECEIVER
ANT.
In the SEND DISTRESS mode, it is important to use a coax cable for the connection between
RF OUT on the test box and the antenna connector on the GMDSS receiver that is to be tested.
This will prevent other ship stations to be alerted. Then select frequency and press OK to send
the call.
Send a DSC Selective Call
To send a selective DSC call, connect the relevant antenna supplied with the test box to RF
OUT. At VHF, use the telescopic antenna. At MF/HF, use the wire antenna. Make sure that the
test box antenna can "see" the receiver’s antenna. In the SEND TEST mode, select frequency
and press OK.
VHF RECEIVER
ANT.
In the MF/HF and TFC mode, select NORMAL or REDUCED output power. Usually, NORMAL
is recommended. Press OK to send the call. If the transmission signal is not strong enough to
enable the test, you may use the RF Amplifier (optional accessory) as shown below.
MF/HF RECEIVER
ANT.
Custom Message
The CUSTOM MESSAGE mode enables the test box to send custom-made messages
composed on a PC. The Message Composer software can be downloaded to the PC from
Danphone’s website. See page 37. For the composition of a DSC call, see next page.
Once composed, the message can be transferred from the PC to the test box via the RS232
cable supplied with the test box. Select CUSTOM MESSAGE / GET on the test box and then
press “Transfer” on the PC. This will transfer the message to the test box.
To transmit the custom-made message from the test box, press CUSTOM MESSAGE / SEND
and select band and frequency.
22
Composition of DSC Calls
DSC calls are composed as shown below.
VHF calls start with a 20 bits header, i.e. 5 times 1010
MF/HF calls start with a 200 bits header, i.e. 25 times 10101010.
Distress Calls
A VHF distress call transmits the following information:
112, 112
Format specifier - Distress call
99,99,99,99,90
Testbox “MMSI no”.
107
Category - Undesignated distress
99,99,99,99,99
Coordinates - 99 99 99 99 99 at test.
88,88
Time - 88 88 at test.
100
First telecommand
127
EOS - End of sequence
57
Modulus-2 checksum
The call is only send once.
A MF/HF distress call transmits the following information:
112, 112
Format specifier - Distress call
99,99,99,99,90
Address - Testbox “MMSI no”.
107
Category - Undesignated distress
99,99,99,99,99
Co-ordinates - 99 99 99 99 99 at test.
88,88
Time - 88 88 at test.
109
First telecommand
127
EOS - End of sequence
48
Modulus-2 checksum
The call is only sent once.
Test Calls
A VHF selective call transmits the following information:
120,120
Format specifier - individual call.
21,95,57,62,40
Address - 2195576240
100
Category - Routine
99,99,99,99,90
Self identification = Testbox “MMSI no”.
100
First telecommand
126
Second telecommand
90 0 6 90 0 6
Frequency or channel
117
Ack. RQ End of sequence
76
Modulus-2 checksum
The call is only sent once.
A MF/HF selective call transmits the following information:
120,120
Format specifier - individual call.
21,95,57,62,40
Address - 2195576240
108
Category - safety
99,99,99,99,90
Self identification = Testbox “MMSI no”.
118
First telecommand
126
Second telecommand
126 126 126 126 126 126
Frequency or channel 126 transmitted six times
117
Ack. RQ End of sequence
86
Modulus-2 checksum
The call is only sent once.
23
A TFC call transmits the following information:
120, 120
Format specifier - Individual call.
21,95,57,62,40
Address - 2195576240
100
Category - Routine
99,99,99,99,90
Self identification = Testbox “MMSI No”.
109, 126
First telecommand and Second telecommand
126 126 126 126 126 126
Frequency or channel 126 transmitted six times
127
EOS - End of sequence
79
Modulus-2 checksum
The call is only sent once.
Send NAVTEX
In this mode the test box can send a NAVTEX test message on 490 kHz, 518 kHz or 4209.5
kHz to a NAVTEX receiver in order to check the NAVTEX receiver/printer.
Connect the wire antenna supplied with the test to RF OUT. Select SEND NAVTEX and
frequency, and press OK to send the NAVTEX test message.
If the signal is not strong enough to enable the test, you may connect the RF Amplifier (optional
accessory) as shown below.
NAVTEX RECEIVER
ANT.
Two different NAVTEX messages are being sent – a navigational warning and a SAR message.
Check that the NAVTEX receiver prints the following messages:
NAVTEX MESSAGE XA00
0123456789ABCDEFGHIJKLMNOPQRSTU
NAVTEX TEST SEQ BY FUTRONIC
GMDSS TEST BOX
NAVTEX MESSAGE XD00
0123456789ABCDEFGHIJKLMNOPQRSTU
NAVTEX TEST SEQ BY FUTRONIC
GMDSS TEST BOX
SECOND TIME
X = Transmitter ID, A = Navigational warning, D = SAR message, 00 = Message No
Please note that the NAVTEX receiver may have been set to neglect routine messages with a
transmitter ID letter and message number already received within a certain period of time. If so,
a test message from the test box may also be neglected by the receiver.
24
Receive DSC
In order not to disturb other ships’ GMDSS equipment, make the calls to the ship's own MMSI
number, if possible. If this is not possible, maybe a 999999999 number can be used.
When operating on MF or HF frequencies, the test box’s antenna should be able to "see" the
transmitter’s antenna.
GMDSS TRANSMITTER
ANT.
In the RECEIVE DSC mode, the first choice is whether to receive on VHF, MF/HF or MF.
At VHF there is a choice between frequency measurements (FRQ) and receiving of DSC data.
At FRQ, the test box waits until the VHF set is activated. The frequency is measured and shown
on the LCD display. The frequency measurement can be used both for measurement of the
DSC signals frequency and for measurement of un-modulated signals. Channels that are close
to CH 70 can also be measured in this mode, provided that the signals have enough amplitude
(approx -10 dBm). The measured frequencies are stored in the memory.
At DSC, the test box will wait for a DSC call. A short press on any of the buttons can interrupt
the waiting state.
Received DSC data is collected and a check is made to assure that the checksum is OK. Status
and MMSI number is shown on the LCD display and is also stored in memory, provided that the
checksum is OK.
At MF/HF, the receive frequency is selected by UP or DOWN. Pressing OK will start the
reception of DSC data.
The test box remains in receive mode until a DSC call is received. The mode can be interrupted
by a press on any of the buttons, provided that the test box has not started to receive a call, in
which case one has to wait for approx. 10 seconds.
When a DSC call is received, status for the receiving and the MARK and SPACE frequencies
are shown on the LCD display.
When one of the buttons is activated, the MMSI number associated with the received call and
the received data is shown on the LCD display. If data are shown as 255, it's because they are
received in error.
It is possible to read forward or backwards by using the UP and DOWN buttons.
MMSI number, received data, and the MARK/SPACE frequencies are stored in memory,
provided that the checksum is OK. If the MARK/SPACE frequencies do not appear on the LCD
display, the signal is most likely outside the limits 1770-1800 Hz / 1600-1630 Hz or that the
signal was unstable during the header or that the header was too short (less than 11 bit).
When MF is chosen, the frequency 2189.5 kHz is indicated on the LCD display. Pressing UP or
DOWN toggles the frequency between 2189.5 kHz and 2177.0 kHz. Pressing OK switches the
test box to a receive mode similar to that of MF/HF receiving.
25
Measurement of MARK/SPACE Frequencies
The SPACE and the MARK frequencies are measured during the initial part of the DSC call.
The measurements are done by means of a time measurement on an AF signal (1700 Hz +/- 85
Hz) derived from the MF/RF MARK/SPACE signal.
The time measurements for MARK and SPACE respectively are converted to frequency and the
calculated values are added to an offset frequency for the actual MF/HF frequency. By adding
the offset frequency to the measured/calculated frequencies the actual MF/HF MARK/SPACE
frequencies are obtained.
The AF signal used for calculation of the MARK/SPACE frequencies has to be within 1615 +/-15
Hz and 1785 +/-15 Hz respectively to be accepted.
Example of Printout from the Memory:
CONTROL MEASUREMENT ON MMSI NO: 2734742100 - HOUR:12 DATE:21-06-2006
2187.5KHZ FORMAT: 120 ADR:2734742100 CAT: 100
SELFID:2734742100 109 126 126 126 126 126 126 126 117 122
SPACE/MARK FRQ: 2,187,588HZ, 2,187,417HZ
Receive ATIS
VHF ATIS TRANSMITTER
ANT.
In RECEIVE ATIS mode keying of an ATIS equipped VHF on CH 6 or CH 15 will enable the test
box to receive and display the station’s ID. The data will be stored in the test box memory
accordingly.
26
VHF Power Measurement
In the VHF PWR MEASURE mode, the test box will automatically measure the forwarded and
reflected power. There is a choice between CONT and MEAS. In the MEAS mode the test box
will take one measurement and store it in the memory. In the CONT mode the test box will
continue taking measurements until it is stopped by pressing and holding the OK button. CONT
readings are not stored, but the feature can be used e.g. for checking/adjusting the antenna.
VHF TRANSMITTER
ANT.
Use this setup for power measurements. Then activate the transmitter and press CONT or
MEAS on the test box after approx. one second. The measured values for FWD and REF will
appear in the LCD display.
If REF power > 10% of FWD power, the display will start blinking.
Power measurements can also be performed over the dummy load inside the test box. If so,
use the short coax cable supplied with the test box and connect like this:
VHF TRANSMITTER
ANT.
Example of Printout from the Memory:
MEASUREMENT MADE BY GMDSST SERIAL NUMBER: 11112006 SW: Rev
11.Nov.2006H
CONTROL MEASUREMENT ON MMSI NO: 2195576240 - HOUR:13 DATE:12-07-2002
FORWARD: 23.5W REFLECT: <0.5W
27
FM Deviation
The illustration shows how to measure the VHF FM Deviation on CH 6:
1 KHZ AF
GENERATOR
VHF TRANSMITTER
ANT.
The test procedure is as follows:
- In the FM DEVIATION mode, select the sub mode MEAS,
- Take the 1 kHz AF generator supplied with the test box close to the transmitter’s microphone
and activate the tone,
- Start TX on the transmitter on CH6,
- Press OK on the test box. Maximum deviation (FM DEVI) and actual deviation (ACT DEVI)
are shown on the LCD display,
- Press OK on the test box, and the maximum deviation value will be stored in the memory,
- Stop TX on the transmitter.
If the message NOT CALIBRATED is displayed, the test box needs calibration. See page 36.
Example of Printout from the Memory:
CONTROL MEASUREMENT ON MMSI NO: 3538410000 - HOUR:14 DATE:09-09-2006
FM DEVIATION: 4.5KHZ
AM / 123.1 MHz
Using the same set-up as with measuring the FM deviation, it is also possible to measure the
frequency and modulation of an AM signal transmitted on 123.1 MHz.
At frequency measurements, take care not to modulate the transmitter, and when checking the
modulation (AF) be aware that a strong input signal will be limited in the test box and thus
reduce the amplitude of the AF signal coming from the internal loudspeaker.
The first sub mode choice is between IMG and ORD. Same measured frequency in both sub
modes indicates that it is not a mirror frequency.
The next sub mode choice is between FRQ (frequency measurements) and AF (audio mode).
At FRQ, the frequency is measured when the transmitter is activated. FRQ and LEVEL are
shown on the LCD display and are also stored in MEMORY.
At AF, the internal loudspeaker is activated and the AM modulated signal can be heard.
Pressing any of the buttons will terminate the test.
28
EPIRB Test
EPIRB
1 - 5 meter
When performing EPIRB tests, always use the test mode on the EPIRB. Doing so, the EPRIB
will radiate a single burst that is specially coded to be ignored by the COSPAS-SARSAT
system.
If the EPIRB is accidentally activated in the emergency transmission mode, the test box will
display WARNING ALARM. Then, the EPIRB should be turned off at once and the false alert
reported to the nearest coast guard station or Search and Rescue centre.
The test box is very sensitive to receiving EPIRB signals, so in most cases you should not use
an antenna when testing EPIRBs. If the display shows “Please wait”, the test box has detected
the transmission but is still waiting for the rest to follow. If nothing happens, it is usually because
the signal is too strong or too week. Then, move the EPRIB closer or further away.
EPIRBs are available for transmitting at various frequencies. So, in the EPIRB test mode the
first step is to select frequency mode. Starting with 406.025 MHz, press OK to prepare for tests
at this frequency, or press UP in order to move to 406.028 MHz and further on to 406.037 and
406.040 MHz. Pressing DOWN takes you to 121.5 MHz.
If the EPIRB does not provide any information of the frequency, you are advised to begin with a
frequency measurement = FRQ (can be done at any of the frequency modes available) and
then select the correct frequency mode for the full EPIRB test.
In the 406 MHz frequency modes there are the following sub modes: FRQ, MEAS and DATA.
In sub mode FRQ, only frequency and signal level are measured.
In sub mode MEAS the test box performs a full test, measuring frequency and signal level
during the test transmission and recording the data strings contained in the transmission. All
data are automatically stored in the memory. Pressing the DOWN button repeatedly, the data
can also be viewed in the display, line by line.
In sub mode DATA you can choose whether the last received EPIRB data are to be displayed
as HEX data or as ordinary text. Then, press DOWN to view the data line by line.
In the 121.5 MHz mode there is a choice between ORD (Ordinary) and IMG (Image). First,
select ORD and FRQ to measure the frequency. Then select IMG and FRQ to measure the
frequency again. Same result from both tests proves that the measured frequency is correct and
not just an image frequency.
Please note that it may not be possible to make frequency measurements of all 121.5 MHz
EPIRBs, as the AM modulation in some cases will prevent this. If so, select AF instead of FRQ.
In the AF mode the internal loudspeaker is switched on and the AM modulated signal can be
heard during transmission. This proves that the EPIRB is transmitting on the correct frequency.
Pressing any of the buttons terminates the AF mode.
29
Examples of Printout from the Memory:
Short message:
406.025MHZ: 406,025.2KHZ, LEVEL: 255, COUNTRY CODE: 538
ON-AIR TEST MODE, SHORT MESSAGE, BCH CHECK OK
USER PROTOCOL: SERIALIZED USER,
BEACON TYPE: NON FLOAT FREE, SN: 194348
NATIONAL USE B.64-83: 11110100000100110100
AUX. DEVICE TYPE: 121.5MHZ
NATIONAL USE, UNDEFINED,
AUTOMATIC AND MANUAL ACTIVATION TYPE OF BEACON
BIT 109-112: 0000
PROGRAMMED IDENTIFIER (BIT 26-85): C34E4BDCB3D04D1
PROGRAMMED MESSAGE (BIT 25-112): 61A725EE59E8268872CC90
Long message w/o position:
406.025MHZ: 406,025.3KHZ, LEVEL: 255, COUNTRY CODE: 219
ON-AIR TEST MODE, LONG MESSAGE, BCH CHECK OK
LOCATION PROTOCOL, MMSI: 999999
SPECIFIC BCN: 1
POSITION: DEFAULT DEFAULT
INTERNAL NAVIGATION DEVICE
121.5MHZ HOMING B112 = 1 / YES
LATITUDE OFFSET: -0.0 LONGITUDE OFFSET: -0.0
PROGRAMMED IDENTIFIER (BIT 26-85): 1B65E847E2FFBFF
PROGRAMMED MESSAGE (BIT 25-144): 8DB2F423F17FDFFFF810B7000005BF
Long message w/ position:
406.025MHZ: 406,024.8KHZ, LEVEL: 255, COUNTRY CODE: 366
ON-AIR TEST MODE, LONG MESSAGE, BCH CHECK OK
LOCATION PROTOCOL, EPIRB SN: 021148
POSITION: NORTH 126.48 EAST 254.60
INTERNAL NAVIGATION DEVICE
121.5MHZ HOMING B112 = 1 / YES
LATITUDE OFFSET: -2.0 LONGITUDE OFFSET: -2.40
PROGRAMMED IDENTIFIER (BIT 26-85): 2DD4294E3F61FDE
PROGRAMMED MESSAGE (BIT 25-144): 96EA14A71FB0FEF75BF8B740AAAAAA
Bit 26-85 (15 Hexadecimal), Bit 25-112 (22 Hexadecimal) and Bit 25-144 (30 Hexadecimal)
can be decoded by using the decode program made available by Cospas-Sarsat on the website
www.cospas-sarsat.org / Beacons / Beacon Message Decode Programme.
30
RADAR SART Test (Optional)
When testing Radar Search And Rescue Transponders (Radar SART), always use the
transponder’s test mode. Do not activate the real emergency mode!
SARTs are used onboard ships or survival crafts to locate them, when they are in distress.
Radar SARTs are activated and located by radar signals in the 9 GHz frequency band. When
activated, the radar SARTs will respond with a signal consisting of 12 sweeps between 9.2 and
9.5 GHz.
For the purpose of testing radar SARTs, the Futronic test box has been equipped with two
directional radar antennas situated behind the rear panel. One is for transmitting a simulated
radar signal to trig the SART, and one for receiving the response signal from the SART.
The test box will display the test result in the form of the average frequency of the 12 response
sweeps transmitted by the SART – along with a figure representing the output power level.
Test Setup
For the testing of radar SARTs, place the test box on a table or other surface that does not
reflect radio waves.
Make sure that there are no reflecting items or surfaces such as metal floors or metal walls
within a distance of at least 70 cm around the test setup.
Put a mark on the table where the SART is to be positioned during the test, which is 50 cm
from the radar antenna on the rear panel of the test box.
90°
Built-in directional
radar antenna
50 cm
How to perform the test
1) On the test box, select SART TEST and press OK.
2) As you may wish to test several SARTs in a row, each SART can be given its own
individual number for recognition. Default number is 1. Press UP or DOWN to change
to another number and press OK to confirm. Following this, the display will show ”Press
OK and turn on SART”.
3) Press OK and the test box will emit a 10-second audible control burst prior to the actual
test. The burst consists of tone pulses with increasing frequency.
4) During the control burst, activate the SART in test mode and keep it activated whilst
placing it on the mark on the table with the antenna part pointing down.
31
5) The test box carries out the SART test within two seconds following the control burst.
6) A double tone confirms that the test box has completed the test, and the SART can be
deactivated accordingly.
7) The test box will display the average frequency of the response signal transmitted by the
SART – along with a figure representing the output power level.
8) A power level figure of 150 or higher must be obtained in order to ensure a reliable test.
If you wish to repeat the test of this particular SART, go to item 1).
If you wish to test another SART, remember to change the SART recognition number in item 2).
The test results are automatically stored in the test box memory with the facility of transferring
them to a PC at a later date.
Example of Printout from the Memory:
MEASUREMENT MADE BY FUTRONIC GMDSS-AIS-SART SN.: 29062010 SW.: Rev
29.Mar.2011
CONTROL MEASUREMENT ON MMSI NO.: 2997531999 - HOUR:12 DATE:29-03-2011
SART UNIT # 01: 9.356 GHZ LEVEL 167
SART UNIT # 02: 9.356 GHZ LEVEL 162
32
FREQUENCY COUNTER
TRANSMITTER
ANT.
This mode is a frequency counter function. The UP/DOWN buttons shift between the frequency
ranges. Press OK to select the actual range.
Having selected the frequency range there is a choice between two trigger modes: CONT and
MEAS.
With the CONT mode, the frequency measurement will be updated and displayed continuously,
but not stored in the memory. Start VHF transmission and keep it on while selecting trigger
mode CONT on the test box.
The CONT mode may be useful for checking if the signal strength is too weak or too strong to
perform a correct frequency measurement. If so, the distance between the antennas should be
adjusted.
If you want to perform an actual frequency measurement and have it stored in the memory as
well, start VHF transmission and keep it on while selecting trigger mode MEAS.
The frequency is measured twice with a 1 sec. pause in between. If the difference between the
measured frequencies is more than 5 Hz, two frequencies are shown on the LCD display. The
latest measurement is shown on the top-line. This is also the one that is automatically stored.
On printouts such measurements are marked by a star * in order to indicate a dubious result.
If a measurement is attempted at a frequency outside the frequency range selected or if the
signal strength is too low or too high, then ”MEASURE FAILED!” will be written on the LCD
display.
Example of Printout from the Memory:
CONTROL MEASUREMENT ON MMSI NO.: 2592730000 - HOUR:10 DATE:24-07-2006
FRQ. MEASURE: 156,499,556HZ
FRQ. MEASURE: 156,799,553HZ
Frequency measurements on VHF ch70
By choosing RECEIVE DSC / VHF / FRQ it is possible to measure the frequency of a DSC
signal on CH 70. The result is automatically stored in the memory.
33
MEMORY FUNCTION
Test results and received AIS data are automatically stored in the test box memory with the
facility of transferring them to a printer or a PC using a HyperTerminal program.
There are two separate memory positions in the test box - one containing received AIS data
only, and one containing all the other test results.
The test box memory can contain a total of 719 test results and 50 AIS records. If more
measurements are done, the oldest will be deleted first.
How to transfer test results and AIS data to a PC
COM Port
RS232 Cable supplied with test box
1) Connect your test box with the COM port of your PC, using the RS232 cable supplied with
the test box.
If your PC does not have a COM port, we advise you to insert a Serial-to-USB converter and
connect with a USB port.
2) Create a HyperTerminal connection on your PC.
Any HyperTerminal program set for 2400 Baud N81 (No parity 8 data bit and 1 stop bit) should
be able to receive the test results from the test box. In Windows based computers, the program
can usually be found under Start/Accessories/Communications. If not found, we advise you to
download a HyperTerminal program from the Internet.
3) Within the HyperTerminal program, select COM port and do the following settings:
Bits per second = 2400
Data bit = 8
Parity = None
Stop bit = 1
Flow control = Hardware
Press OK, and the PC is now ready to receive data from your test box.
Transfer of test results
4) On your test box, select MEMORY FUNCTION and press OK
5.a) If you select SELE, you may toggle between the test results you wish to transfer. The latest
result is displayed first. Once selected, press OK > PC > Date of printout, and confirm with OK.
5.b) If you select RS232 > PC, all test results in the memory will be transferred.
34
Transfer of AIS data
4) On your test box, select AIS RECEIVE and press OK.
5) Select DATA and RS232, and all AIS data in the memory will be transferred, the latest first.
If you want to save the test results and AIS data on your PC, choose Edit > Select All > Copy
in the HyperTerminal program. Then, start a word processing program and paste the
information into this program.
TECHNICAL SPECIFICATIONS
Frequency measurements general:
Frequency measurements at CH70
EPIRB, AIS1 AND AIS2:
Output signals:
Frequency deviation measurements:
Power measurements:
Ambient temperature:
Storage temperature:
Size (LxHxW):
Weight:
Power consumption
+/- 0.2 ppm +/- 1 digit
+/- 0.2 kHz
Nominal frequency +/- 0.2 ppm
+/- 0.1 kHz at 5 kHz
+/- 0.5 kHz at 1-6 kHz
+/- 2 W at 5-30 W
+/- 0.5 W at 0-3 W
0 to 50 Deg. C
-30 to +60 Deg. C
220x103x258 mm
3.8 Kg
max. 12 VA (800 mA at 15V DC)
PERFORMANCE CHECK
Check mark/space frequencies in SELFTEST mode.
Specification: fnom. +/- 0.1 ppm +/- 1 digit.
Check output level for MF/HF frequencies.
Specification: -15 dBm +/- 3 dB.
Check sensitivity at MF/HF DSC receiving.
Specification: <= -30 dBm for correct frequency measurements.
Check sensitivity on CH 70 via frequency measurements.
Specification: <= -30 dBm for correct frequency measurements.
Check sensitivity on EPIRB (406.025 MHz) via frequency measurements.
Specification: <= -30 dBm for correct frequency measurements.
Check sensitivity on 121.5/123.1 MHz via frequency measurements.
Specification: <= -30 dBm for correct frequency measurements.
Check accuracy for frequency measurements.
All band (0.4 - 475 MHz).
Specification: <= +/- 0.1 ppm with -30 dBm >= Pin <= 0 dBm
35
VHF channel 70.
Specification: <= +/- 0.2 kHz with -30 dBm >= Pin <= 0 dBm
AM 123.1 MHz.
Specification: <= +/- 0.1 ppm with -30 dBm >= Pin <= 0 dBm
AM 121.5 MHz.
Specification: <= +/- 0.2 kHz with -30 dBm >= Pin <= 0 dBm
CALIBRATION
General
In order to maintain the high standards of measuring accuracy, Futronic test boxes must be recalibrated for the first time after one year and then every two years. We advise you to have the
tester calibrated at the manufacturer Danphone A/S in Denmark. Calibrated here, the test box
software will automatically be updated to the latest version.
If calibration is performed at a local test and calibration house, see the following instructions.
Further information can be found in the Futronic SERVICE MANUAL that is available upon
request.
Calibrations should be performed at an ambient temperature of 20-25 degrees and after a 24hour stabilization period (power on).
OCXO frequency
Measure the OCXO's frequency after the doubler circuit and adjust the OCXO's multi turn
potentiometer until the measured frequency is 20,000,000 Hz +/- 1 Hz.
As reference for the frequency measurement a frequency standard with an accuracy of at least
+/- 10 exp-8 should be used.
FM deviation
The calibration is initiated by choosing the sub mode CAL. To prevent accidental loss of
calibration, the LCD display asks: ARE YOU SURE? If you want to proceed, press CAL once
more and then the UP and DOWN buttons simultaneously.
Connect a signal generator to the test box’s RF input and set the generator for -30dBm at
156.300 MHz modulated with 1 kHz and a frequency deviation of 5 kHz.
Press OK on the test box and a signal number will appear on the display.
Press OK again. The test box is now calibrated for the purpose of testing VHF FM deviation.
Still connected with the signal generator, check the calibration by running a test in MEAS mode.
Specification: +/- 0.1 kHz at 5 kHz and +/- 0.5 kHz within the range 1- 6 kHz.
Power measurement
Connect RF power/dummy load to the test box’s TX/ANT sockets and check that the test box
indicate forward/reflected power at an accuracy of +/- 2 W within the range 5 - 30 W and +/- 0.5
W within the range 0.5 - 3 W. If necessary adjust the potentiometers marked F and R
respectively in the antenna coupler until the specifications are met.
36
MESSAGE COMPOSER AND DECODER SOFTWARE
The Message Composer and Decoder Software allows you to prepare custom made messages
on a PC and then download them to the test box for later transmissions. The software also
enables you to decode and view messages transmitted from AIS transponders.
The Message Composer and Decoder Software can be downloaded from Danphone’s website
http://www.danphone.com/Default.aspx?ID=54
Manual
First, select com port and function:
Functions available:
DSC = DSC message composer
AIS = AIS message composer
AIS data = Decode and view messages from AIS transponder
NMEA = NMEA string composer
37
DSC Message Composer
Select Format for the DSC message.
Fill in the DSC information you want to transmit. See examples in chapter COMPOSITION OF
THE DSC CALL of test box manual. Also, refer to Rec. ITU-R M.493 and Rec. ITU-R M.825 for
more information.
It is possible to save and reload four DSC messages.
Select CUSTOM MESSAGE - GET on the test box and then click “Transfer” to transfer the DSC
string to the test box.
Press CUSTOM MESSAGE - SEND on the test box in order to transmit the DSC string.
If the DSC string is an AIS-VTS command, press
AIS TEST > GMDSS COMM.CH70 > SEND CUSTOM MSG > OK
for transmitting and receiving the answer from an AIS.
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AIS Message Composer
Write the Latitude and Longitude position in the fields. It’s only MSG 1, 2 or 3 which are
available. Please note, that the MMSI number is not the MMSI of the actual AIS transponder but
the MMSI number sent out from the test box.
Select AIS TEST SEND > PC on the test box, then click “Transfer” in order to transfer the string
to the test box.
Press AIS1(2) on the test box in order to transmit the string, via AIS OUT on the test box.
It’s possible to save and reload four AIS messages.
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AIS Monitor / Message Decoder
Receive = Receive AIS data from the test box
Save as text = Save AIS data on your PC
Read TB dump file = Reload and view AIS data stored on your PC
40
NMEA String Composer
Write the NMEA string you want to transfer to the test box.
Click “Generate check” to add checksum.
Select NMEA > CUST > PC on the test box,
Click “Transfer” to transfer the NMEA string to the test box.
Press SEND on the test box to transfer the string to the RS232 D-sub on the test box.
USER’S OWN NOTES:
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