Motorola GTR 8000 Manual page 214

Astro 25 integrated voice and data base radio
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GTR 8000 Base Radio
1
Connect to the base radio in CSS through an Ethernet connection. See
Port Link, page
2
Select Service → Test and Measurement Screen from the menu. Select the ASTRO Test Pattern tab.
If the base radio is not already in service mode:
3
a. Click Change to Service Mode.
Step result: A confirmation dialog box appears.
b. Click OK.
Step result: The base radio goes through a reset sequence to change modes. This takes a few minutes.
c. After the base radio resets, re-open the Test and Measurement Screen, as described in
Connect the service monitor to the base radio:
4
a. Remove the N-Type connector from the Transmitter Antenna Port.
b. Connect an N-to-N cable from the Transmitter Antenna Port to the T/R port of the service monitor
c. Make the following settings on the service analyzer:
• Configure the service monitor for Analog Duplex.
• Enter the frequency to match that of the base radio TX channel selected.
• Click INPUT PORT and set to T/R.
• Click ATTEN and set to 20 dB.
• Click IF BW and set to 12.5 kHz for narrow channels. Select 25 kHz or 30 kHz for wide channels.
• Click DEMOD and set to FM.
• Click RF GEN to turn OFF the Signal Generator Output.
• For the power meter, select W and BB (Broadband).
• Select 0.3–3 kHz for the audio filtering bandwidth.
Set up the test in CSS by selecting 1 kHz Tone at 60% deviation without PL/DPL from the Pattern to
5
Transmit field.
5-44
4-11.
4.4.4 Connecting Through an Ethernet
step 2
6871022P86-A - November 2012

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