Product specifications

DMD1050 Satellite Modem Board Theory of Operation

Table 3-2. 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

of remote modem

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 3-3. 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

MN-DMD1050 3–24

Revision 9