ACT-5X Exciter User Manual
Version 3.0 05/07/2015
Page 24 of 26
Equalization error
Alarm message
LCD:
None
LED_ TS2:
Off
LED_ TSErr:
Flashing
Dry Loop:
0 V (SysErr Fault)
Cause: If LED_ TS1 is also off, it means the input RF signal could not pass the prior
synchronization step so the equalization step is not started yet. If LED_TS1 is on but still
LED_TS2 is off, then it means the input signal has poor signal quality so that it could not pass
the equalization and therefore could not be demodulated successfully.
Solution: If the synchronization is OK (LED_TS1 remains ON), adjust the Rx antenna for a
better reception. If the problem still exists, restart the translator.
5.3 GPS
No GPS
Alarm message
LCD:
GPS NoGPS
LED_ GPS:
Off
Cause: This warning displays when no external GPS is connected.
Solution: Check the connection with external GPS device.
GPS Unlocked
Alarm message
LCD:
GPS UNLOCK
LED_ GPS:
Off
Cause: The selected reference clock is unlocked or unstable.
Solution: Check the status of external GPS device.
5.4 ADPC
Feedback Signal Level
Alarm message
LCD:
"FEEDBACK TOO BIG! Press Any key to Esc"
Or "FEEDBACK TOO SMALL! Press Any key to Esc"
LED_ SysErr: Flashing (during the ADPC process)
Dry Loop:
0 V (SysErr Fault)
Cause: Feedback signal level is too high or too low from the very beginning of each part of
ADPC function.
Solution: Cancel the ADPC function manually and then adjust the input level of the feedback
signal according to the messages on the LCD. Start the ADPC function again after the problem is
resolved.
