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Modes of aupc location, 2 modes of aupc location – Comtech EF Data SNM-1001L User Manual

Page 207

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SNM-1001L Satellite Modem

Revision 1

Automatic Uplink Power Control MN/SNM1001L.IOM

10–3

10.2

Modes of

AUPC Location

There are two modes of AUPC location:

AUPC between two modems

Maintains a target Eb/No programmed into the modem at each
end.

Self-Monitoring AUPC with
one modem

Maintains a target Eb/No for a modem that receives its own
carrier from the satellite.


The menu below is enabled by selecting Local Modem AUPC = ON, located under the
Utility: Modem Type menu. This menu sets the AUPC parameters for both the self
monitoring with one modem and the AUPC between two modems.

Table 10-1. Setting AUPC Parameters

AUPC ENABLE

Enables the AUPC to function locally. (Configuration: Local
AUPC
menu)

NOMINAL POWER

Output power level. Can be used for problem conditions, if chosen.

MINIMUM POWER

Sets minimum output power to be used.

MAXIMUM POWER

Sets maximum output power to be used.

TARGET NOISE

Desired Eb/N0 of the local modem.

TRACKING RATE

Sets speed at which modems will adjust to output power.

LOCAL CL ACTION

Defines action that local modem will take if it loses carrier
(Maximum, Minimum, or Hold).

REMOTE CL ACTION

Defines action that local modem will take if remote modem reports
carrier loss (Maximum, Minimum, or Hold).



LINK

MODEM A

MODEM B

M O D E M

AUPC Between Two Modems


Self-Monitoring AUPC with One Modem