Comtech EF Data DMD-2050E - Manual (Page 282)

DMD2050E Universal Satellite Modem AUPC Operation
MN-DMD2050E Revision 2 G–4
When the rain diminishes, Local modem will see the remote Es/No begin to increase. Local
modem will lower its power level. The operation is therefore a feedback control loop with the
added complication of a significant time delay.
The AUPC Menu Functions and their descriptions are shown in Table G-1 and Table G-2.
Table G-1. Local AUPC Functions
Function AUPC Available Options Description
AUPC MODE DISABLE, NEARSIDE,
RADYNE, EFDATA Enables/Disables the AUPC to function locally
NOMINAL POWER 0 TO -25 dB Sets default output power to be used
MINIMUM POWER 0 TO -25 dB Sets minimum output power to be used
MAXIMIM POWER 0 TO -25 dB Sets maximum output power to be
TARGET Eb/No 4.0 TO 16 dB Desired E
b
/N
0
of remote modem
TARGET Es/No 0.0 TO 25 dB EBEM MODE ONLY: Desired E
s
/N
0
of remote
modem
RANGE Es/No 0.0 TO 2.0 dB EBEM MODE ONLY: Dead range of desired E
s
/N
0
where no action is taken
TRACKING RATE 6.0 to 0.5 dB/MIN Adjustable in .5dB increments
LOCAL CL ACTION HOLD, MAXIMUM, NOMINAL Allows user to determine what power setting the
remote modem will use in the event of a carrier loss
at the local side.
REMOTE CL ACTION HOLD, MAXIMUM, NOMINAL This setting allows users to determine what local
output power setting to use in the event that the
remote end has a carrier loss.
1. The AUPC Menus are located under the Modulator Menu as shown in Section 4.
2. The EF AUPC Menu displays when EFAUPC Framing is enabled in the Demod and Mod set up menus.
3. Highlighted areas are activated when modem is set to EF AUPC
Table G-2. Remote AUPC Functions (EF AUPC Only)
Function AUPC Available Options Description
AUPC MODE Disable, EFDATA Enables/Disables the AUPC to function remotely
LOOPBACK Enabled/Disabled Loop back test over satellite link
TX 2047 TEST BER Enabled/Disabled Initiates 2047 Test pattern BER Test
RX 2047 BER Status Menu Identifies the BER status on the distant RX side
AUPC DEF LVL Sets default output power to be used
The Remote AUPC Menus are only supported by EFAUPC