CDM-625 Advanced Satellite Modem Revision 13
DoubleTalk
Carrier-in-Carrier Option MN-CDM625
10–26
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
◄ ► arrow keys to select a digit to edit, and then
use the
▲▼ arrow keys to change the value of that digit. Press ENTER when done.
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
▲▼ arrow keys to select Y(Yes)and then
press ENTER.
The modem display will update, similar to the following example:
The CnC Mode: APC,Side A,C-Band (Off, On, APC)
Suspend? N (Y,N) OK-ReBalance Done ()
The message on the bottom line can be any one of the following:
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
max
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
max
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
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