CiM-550 IP Enabled Satellite Modem

Rev. 2

Front Panel Menus

CD/CIM550.IOM

4.1.7.1.2 SELECT\MONIT\ALARMS\RECEIVE

 

DISPLAY

 

SELECTIONS/DESCRIPTION

 

 

 

 

 

 

 

The screen will indicate if there are any Receive

 

RX TRAFFIC: AGC ALARM

 

 

Traffic Faults. If not, it will display ‘NONE’.

 

REDUCE COMPOSITE I/P LVL

 

 

 

 

 

 

 

 

 

 

4.1.7.1.3 SELECT\MONIT\ALARMS\TRANSMIT

 

DISPLAY

 

SELECTIONS/DESCRIPTION

 

 

 

 

 

 

 

 

 

The screen will indicate if there are any Transmit

 

TX TRAFFIC:

NO CLOCK

 

 

Traffic Faults. If not, it will display ‘NONE’.

 

DETECTED FROM INTERFACE

 

 

 

 

 

 

 

 

 

 

 

 

4.1.7.2 SELECT\MONIT\RX-PARAMS

 

 

DISPLAY

 

SELECTIONS/DESCRIPTION

 

 

 

 

 

 

 

 

 

This screen dispalys if the demodulator is unlocked.

 

DEMODULATOR

 

 

 

 

UNLOCKED

(ENTER)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If the demodulator is locked, this screen shows the

 

RX:Eb/No=05.7dB dF=+11.7k

 

 

following:

 

BER=3.4E-9 BUF=50 AGC=24

 

 

 

 

 

 

 

 

 

 

 

 

Eb/No This shows the value of Eb/No calculated by the demodulator. The value referred to here is the energy per information bit (Ebi), divided by the noise spectral density (No).

dF The frequency offset of the received carrier, in kHz, with a displayed resolution of 100 Hz.

BER This is an estimate of the corrected BER.

BUF (Buffer fill state) This shows the fill state (in percent), of the receive Buffer. After a reset, it will read 50. A value <50 indicates that the buffer is emptying, and >50 indicates that it is filling.

AGC A number between 0 and 99 indicating the gain setting of the coarse AGC loop in the demod. It has a limited dynamic range, and should not be taken as an accurate measurement of signal level.

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