Comtech EF Data DMD1050TS, Installation And Operation Manual

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DMD1050TS Satellite Modem Board
Revision 1
Theory of Operation 3–27 MN-DMD1050TS
EF AUPC also gives some control over the rate of power change; while Radyne and Near Side
AUPC use optimized rates for rain fade compensation.
Table 3-3. 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 Eb/No of remote modem
This allows the user to set the desired Eb/No for the local receiver.
RADYNE AUPC: When configured for Radyne AUPC, this setting is
compared against the remote Eb/No and commands to the local
modem to increase or decrease the local transmit power.
EF AUPC: When configured for EF AUPC, this setting is compared
against the local received Eb/No and commands to the remote modem
to increase or decrease transmit power.
NEARSIDE: When configured for NEARSIDE AUPC, this setting is
compared against the received Eb/No of the local modem and
commands to the local modem to increase or decrease transmit
power.
TRACKING
RATE
6.0 to 0.5 dB/MIN Adjustable in .5 dB 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 shows when EFAUPC Framing is enabled in the Demod and Mod set up menus.