
22
Send a DSC Distress Call
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.
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.
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.
ANT.
VHF RECEIVER
ANT.
GMDSS RECEIVER
ANT.
MF/HF RECEIVER
Содержание Futronic GMDSS-AIS-SART
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