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ACT-5X Exciter User Manual
Version 3.0 05/07/2015 Page 18 of 26
4) "FSSI" is indicator of feedback signal strength and its range is from 0% to 100%.
At +5 dB level, FSSI=100%.
At -5 dB level, FSSI=75%
At -15 dB level, FSSI=50%
At -20 dB level, FSSI= 25%
*The readings listed above are typical values. There may be variations on different frequencies or
different units. Overall the recommended level of feedback signal is -15 dBm to -5 dBm.
When FSSI is less than 20% or higher than 75%, the reading will keep flashing, indicating the
feedback level may need to be adjusted.
Table 17 Latch Menu
RESET U1 U2 RF GPS TS SYS 1PPS SFN
Default OK 0 0 0 0 0 0 0 0
Options
OK 0 0 0 0 0 0 0 0
CLR 1 1 1 1 1 1 1 1
Table 18 SN Menu
SN GUI_KEY
Default 0000000000000 00000000
Options
Table 19 PAC Menu
Vol_9 Vol_50 Cur_50 PA_FWD PA_REF 881_GV VSWR PA_TEMP PA__LVL CUR2_50
Value
Content
Voltage
of 9V
DC
supply
Voltage
of 50V
DC
supply
Current
of 50V
DC
supply
Forward
power of
PA
Reflected
power of
PA
Grid
Voltage
Voltage
standing
wave
ratio
Temperature
of PA
PA rated
power
Current 2
of 50V
DC supply
Note:
1) CUR2_50 is only applicable when rated power is 200W or higher.