User's Manual

385700-1006-006 MAINTENANCE AND TROUBLESHOOTING
Document use is restricted to that described on cover 5-13
5.6 BDR TESTS
The following sections provide test setup information for the BDR.
5.6.1 BDR TRANSMITTER SETUP
Referring to Figure 5-8, perform the following to prepare for the BDR transmitter fault isolation
test:
1. Connect power cable to BDR.
2. Connect the PC to the BDR with a diagnostic cable at the
DIAGNOSTIC
port.
3. Connect a 20 dB power attenuator to the BDR at the
ANTENNA
port.
4. Connect a 20 dB power attenuator to the spectrum analyzer RF port.
5. Connect a N cable from the ANTENNA port attenuator to the attenuator at the
INPUT
of the spectrum analyzer.
Figure 5-8 BDR Transmitter Fault Isolation Test Setup
For the BDR transmitter fault isolation test, set-up the spectrum analyzer as follows:
Center Frequency = 2416.64 MHz
Span = 60 MHz
Resolution Bandwidth= 100 KHz
Video Bandwidth = 300 Hz
Attn = 10 dB
Ref = 0 dBm
SWP = Auto
Marker = 2416.64 MHz
5.6.2 BDR TRANSMITTER FAULT ISOLATION TEST
After preparing for the test, perform the following steps to isolate the BDR transmitter fault:
1. Place BDR power to the
ON
position.
2. Bring up the Diagnostic LCP screen. Refer to section 2.5.2 for details. Verify
that the radio self test is completed successfully.
3. At the LCP menu, select command #16 (Enable Transmitter).
4. Use the spectrum analyzer’s peak search function to monitor the output power.
PC
BDR
Diagnostic
J4
Antenna
J5
Spectrum
Analyzer
Input
20 dB
Power
Attenuator
20 dB
Attenuator