CDM-600 Satellite Modem

 

 

 

 

Revision 7

Remote Control

 

 

 

 

 

MN/CDM600.IOM

 

 

 

 

 

 

 

 

Parameter

Command

Arguments for

 

 

Response

Query

 

(Instruction

Command or

 

 

(Instruction

 

Description of Arguments

 

to

Response to Query

Type

Code and

Response to

 

Code and

 

 

Command

 

 

Qualifier)

Query

 

 

Qualifier)

 

 

 

 

 

 

Initialize

IEP=

None

Command only.

 

IEP=

N/A

N/A

Events

 

 

Resets internal pointer to allow RNE? queries to start at

IEP#

 

 

Pointer

 

 

the beginning of the stored events log.

 

 

 

Rx Eb/No

N/A

4 bytes

Query only.

 

N/A

EBN?

EBN=xxxx

 

 

 

Unit returns the value of Eb/No, between 0 to 16 dB.

 

 

(see description of

 

 

 

Resolution 0.1 dB.

 

 

 

arguments)

 

 

 

Returns 99.9 if demod is unlocked.

 

 

 

 

 

 

 

Returns +016 for values greater than 16.0 dB.

 

 

 

 

 

 

Example EBN=12.3 (which is Eb/No = 12.3 dB)

 

 

 

Rx Signal

N/A

5 bytes

Query Only.

 

N/A

RSL?

RSL=xxxxx

Level

 

 

Unit returns the value of the Rx signal level, in dBm,

 

 

(see description

 

 

 

between –20 and –60 dBm.

 

 

 

of arguments)

 

 

 

If >-20dBm, returns RSL=GT-20

(GT means ‘greater

 

 

 

 

 

 

than’)

 

 

 

 

 

 

 

If in the range of –20 to –60dBm, returns RSL===-xx

 

 

 

 

 

 

If <-60 dBm, returns RSL=LT-60

(LT means ‘less

 

 

 

 

 

 

than’)

 

 

 

 

 

 

 

Example: RSL=== -45 (which is –45 dBm)

 

 

 

Rx Frequency

N/A

5 bytes

Query only.

 

N/A

RFO?

RFO=xxxxx

Offset

 

 

Unit returns the value of the measured frequency offset

 

 

(see description

 

 

 

of the carrier being demodulated.

 

 

 

of arguments)

 

 

 

Values range from ± 0 to ± 30 kHz, 100 Hz resolution.

 

 

 

 

 

 

Returns 99999 if the demodulator is unlocked.

 

 

 

 

 

 

Example: RFO=+02.3 (which is + 2.3 kHz)

 

 

 

Buffer Fill

N/A

2 bytes

Query only.

 

N/A

BFS?

BFS=xx

State

 

 

Unit returns the value of the buffer fill state, between 1

 

 

(see description

 

 

 

and 99%. Returns 00 if demodulator is unlocked.

 

 

of arguments)

 

 

 

Example: BFS=33 (which is 33%)

 

 

 

 

16–31

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Image 207
Premier Mounts CDM-600 specifications Iep=, Iep#, Ebn?, Rsl?, Rfo?, Bfs?