Comtech EF Data CDM-625A Installation And Operation Manual page 594

CDM-625A Advanced Satellite Modem
Appendix F
Output Power Mode = CnC-Auto-Power-Control
Level = -25.0dBm MaxPwrIncrease=2.5dB
On the bottom line, to edit the power output level and the maximum permitted increase in
power level when in APC Mode: Use the
use the
▲▼
Note that when APC is in an active state, the value of the power level displayed in the
bottom left will show 'AUTO'.
6) Go back to the SELECT: CONFIG CnC  MODE menu. On the bottom line, which will be
displaying Activate? N (Y,N ), use the
press ENTER.
The modem display will update, similar to the following example:
The CnC Mode: APC,Side A,C-Band (Off, On, APC)
Suspend?
The message on the bottom line can be any one of the following:
Displayed Message
OK-ReBalance Done
OK(P)CnCRatio Lim
OK(P)-LocalPwr Min
OK(P)-LocalPwr Max
OK(P)-LocalPwr Lim
OK(P)-DistPwr Min
OK(P)-DistPwr Max
OK(P)-DistPwr Lim
OK(P)-Incomplete
No APC Frame Sync
Locl EbNo too high
Dist EbNo too high
DistEnd ReBal fail
DistEnd NoResponse
Fail-CalcMismatch
CnC Ratio too high
LoclMargin too low
arrow keys to change the value of that digit. Press ENTER when done.
N (Y,N) OK-ReBalance Done
Expanded Meaning
Full re-balance was achieved
Partial re-balance, limited by CnC ratio approaching its working limit
Partial re-balance, limited by local power approaching its lower limit
Partial re-balance, limited by local power approaching its upper limit
Partial re-balance, limited by local power approaching TPLI
Partial re-balance, limited by distant power approaching its lower limit
Partial re-balance, limited by distant power approaching its upper limit
Partial re-balance, limited by local power approaching TPLI
Partial re-balance, algorithm did not fully converge
Communication not possible – no APC frame sync
The local Eb/No is too high (>16 dB) to determine re-balance params
The distant Eb/No is too high (>16 dB) to determine re-balance params
The distant end failed to re-balance
The distant end failed to respond
No Re-balance - the solution calculated by each end does not match
The CnC ratio is too high (>9 dB) for re-balancing to be attempted
There is insufficient local Eb/No margin for an APC re-balance
◄ ►
arrow keys to select a digit to edit, and then
arrow keys to select Y(Yes)and then
▲▼
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