User Manual

INSTALLATION GUIDE FOR RX-7W22
ENU STATUS : 1-0-0
Copyright - refer to title page
Page 52
Reset PA:
The Downlink PA will try to automatically reboot during the first 2 hours after alarms occur and then may
shutdown permanently if alarms still exist. Users need to manually reset the PA in WEBOMT after fixing the
alarm.
Go to Management -> Device Reset: Click the Reset button at the lower table to reset DL PA for 800MHz or
700MHz
Figure 47: Reset PA
Power detection:
 The power detection can be done from the reading number in WEBOMT, available in:
 Downlink input power (per channel)
 Downlink output power (composite)
 Uplink input power (per channel)
 Or from the test ports for DT/MT, which are 22dB lower than the DT/MT port respectively, the test ports are
able to detect both DL and UL signals
Isolation:
The system doesn’t allow users to set a gain higher than isolation-20dB. The PS BDA has a mandatory
process to check the isolation during commissioning, when isolation is not good (lower than 110dB, even
though the PS BDA passes the commissioning process), a check on isolation (between donor and service
antennas) is always recommended.
The maximum system gain that can be set must be 20dB lower than the isolation. (For example, if the isolation
is 110dB, then the maximum gain that can be set is 90dB.) The PS BDA has an automatic process that prevents
the gain being set to a value that does not follow this parameter.
If this gain is insufficient, then the isolation situation must be corrected to provide a higher isolation value.