CDM-600 Satellite Modem

Revision 7

Front Panel Operation

MN/CDM600.IOM

6.3.4.3MONITOR: RX PARAMETERS

RX=PARAMETERS: EbNo=11.4dB F=+11.7kHz

BER=0.0E-9 BUFFER=51% RX-LEVEL=-43dBm

If the demodulator is locked, this screen shows the following:

 

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).

 

F

 

The frequency offset of the received carrier, in kHz, with a displayed resolution

 

BER

 

of 100 Hz.

 

 

This is an estimate of the corrected BER.

 

BUFFER

 

(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.

 

RX-LEVEL

 

A dBm reading indicating the signal level of the desired receive carrier.

6.3.4.4MONITOR: AUPC-PARAMS

AUPC-PARAMS: REMOTE EbNo=6.8dB

TRANSMIT POWER INCREASE=1.2dB

The top line displays the value of Remote Eb/No of the demodulator at the distant end of the satellite link. The Remote Eb/No will display UNLOCK if the remote DEMOD is unlocked. The bottom line shows how much the AUPC system has increased the output power. If AUPC is not enabled, the value of TX POWER INCREASE will show as

0.0 dB.

6.3.5STORE/LOAD

CONFIGURATION: 0 LOAD STORE 'AVAILABLE'

Select LOAD, STORE or EDIT using the [←][→] arrow keys, then press ENTER.

The user can store, load up to 10 different modem configurations, or record the date and time of stored configurations in the non-volatile memory of the modem. These configurations can be viewed using the [↑] [↓] arrow keys, and their names edited.

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Premier Mounts CDM-600 Monitor RX Parameters, Monitor AUPC-PARAMS, Store/Load, Configuration 0 Load Store Available