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DSC TRANSMITTER
ANT.
For an indication of the actual signal strength level, select Signal level and press OK. Following
this, the frequency will appear in the display. Then, press OK and start transmission from the
radio. The level figure appears in the test box display. A figure of 70 or higher is advisable.
Test Sensitivity
This test mode enables you to check the sensitivity of a MF/HF receiver.
Use this setup:
MF/HF RECEIVER
ANT.
1) Set the receiver to 21,000 kHz.
2) Select Test Sensitivity on the test box and press OK.
3) Select High to send a test signal at -90 dBm, or Low to send the signal at -110 dBm. With
this, the test box transmits 21,001 kHz modulated with 1 kHz at the requested level.
4) Check that a 1 kHz tone can be heard in the radio's speaker.
NAVTEX TESTS
In the NAVTEX test mode, the test box can send NAVTEX messages on 490 kHz, 518 kHz or
4209.5 kHz to a NAVTEX receiver in order to check the receiver/printer.
Set Number
As you may wish to test several NAVTEX receivers, each receiver can be given its own
individual set number for recognition. Default number is 1. Press OK to confirm, or press ↑ or ↓
to change to another number. Then, press OK and go to the test.
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