User's Manual

385700-1006-006 MAINTENANCE AND TROUBLESHOOTING
Document use is restricted to that described on cover 5-12
6. After the BDR LCP menu appears, select command #28 (Status Request).
Record the Transmit and Receive PN Code Indices.
7. On the MDR LCP menu, set the Transmit PN code index equal to the BDR
Receive PN code index recorded above. The code is set as follows from the
MDR LCP menu:
2 ↵
T ↵
xx ↵ where xx is the BDR Receive PN code index
On the MDR LCP menu, set the Receive PN code index equal to the BDR
Transmit PN code index recorded above. The code is set as follows from the
MDR LCP menu:
2 ↵
R ↵
xx ↵ where xx is the BDR Transmit PN code index.
8. On the MDR LCP menu, select command #28 (Status Request). Verify that the
Upper, Lower, and Lower Lock Thresholds are the same as written on the
configuration sheet shipped with the radio.
9. On both the MDR and BDR LCP terminals, select command #33 (Set dBm
output level.) Set each radio transmitter output level to 24 dBm.
10. At the BDR LCP menu, select command #16 (Enable Transmitter).
11. Verify that the MDR
RECEIVER LOCK
light is on. If it fails to illuminate, the
MDR is not operational.
12. If the
RECEIVER LOCK
light is illuminated, either the MDR was not configured
correctly (i.e. PN code indices) prior to this test, the antenna connection was
faulty or the factory should be contacted for further information.
13. From the respective LCP terminals, shut off the radio transmitters by selecting
command #15 (Disable Transmitter).
14. Place the MDR and BDR power switches to the
OFF
position.
Figure 5-7 MDR Receiver Test Setup
PC
BDR
Diagnostic
J4
Antenna
J5
20 dB Power
Attenuator
20 dB
Attenuator
MDR
Antenna
J5
Diagnostic
J4
PC