Specifications

Company Confidential 47 Raveon Technologies Corp.
The type of radio module installed in the radio is shown on the serial number
label attached to the FireLine modem’s rear cover.
10.3. Center Frequency
1. Key the transmitter with CW output using this command:
ATTD 7
2. The modem will now put out CW on the center of the channel.
3. Read the frequency offset with the ATR8 command.
4. Adjust the frequency to the center of the channel with the ATR8
command. You can use the “U” key and the “D” key to change the
settings up and down one value in real time.
10.4. TX Deviation
1. Switch to channel 1.
2. Key the transmitter into a 50 ohm load using the ATTD 5 command. The
unit will now transmit, and send a digital 0 continuously. This should be
+2.0kHz in frequency for narrow-band radios (12.5kHz spaced channels)
and +4.0kHz for wide-band (25kHz channels).
3. Adjust the deviation register setting so that the frequency deviation is
correct. The deviation is set with a digital adjustment. Use the ATR0
command to read or set the deviation level.
10.5. TX Modulation Balance
(Note: This step is not performed on radios with Radio Type 5)
1. Set-up a service monitor to monitor the FM deviation of the transmitted
signal on an oscilloscope. The frequency response of the demodulated
FM signal must be greater than 10Hz to 5kHz without any de-emphasis.
2. Transmit random data with the FireLine, using the ATDT 1 command.
This command will cause the FireLine to automatically key up, and send
random data for one minute.
Radio Type