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MN003286A01-E
Chapter 5: GTR 8000 Base Radio Optimization
b At the confirmation screen, click OK.
The base radio halts activity in the current mode and switches operation to the requested
mode.
c Re-open the Test And Measurement Screen, as described in
5 Connect the service monitor to the base radio:
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.
6 Make the following settings on the service analyzer:
a Configure the service monitor for Analog Duplex.
b Enter the frequency to match that of the base radio TX channel selected.
c Click INPUT PORT and set to T/R.
d Click ATTEN and set to 20 dB.
e Click IF BW and set to 12.5 kHz for narrow channels. Select 25 kHz or 30 kHz for wide
channels.
f
Click DEMOD and set to FM.
g Click RF GEN to turn OFF the Signal Generator Output.
h For the power meter, select W and BB (Broadband).
i
Select 0.3–3 kHz for the audio filtering bandwidth.
7 Set up the test in CSS:
•
From the Pattern to Transmit field, select 1 kHz Tone at 60% deviation without PL/DPL.
8 Click Start Pattern Transmission.
The service monitor displays:
•
The transmit output power (make sure to account for any cable loss).
•
The amount of FM deviation of the carrier.
•
The Tx SINAD (measure of Tx distortion) in dB.
•
The transmitters carrier frequency error.
196
step 2
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Table of Contents
Troubleshooting
