Comtech EF Data CDM-710L Specifikace stáhnout pdf (Strana 173)

CDM-710 Broadcast Satellite Modem Revision 10

Remote Control MN/CDM710.IOM

A–11

Parameter

Type

Command

(Instruction

Code and

Qualifier)

Arguments

for Command

or Response

to Query

Description of Arguments

Response

Command

Query

(Instruction

Code and

Qualifier)

Response to Query

Tx Power Level TPL= 5 bytes Command or Query.

Tx Output power level, where:

s=sign ( + / - )

xx.x = Tx Output power level, +05.0 and –20.0 dBm.

L-Band: -25.0 to –05.0 dBm

70/140 MHz: -20.0 to +00.0 dBm

Note: Beyond –20 dBm is beyond the specification.

Example: TPL = -13.4

TPL=

TPL?

TPL*

TPL#

TPL?

TPL=sxx.x

Tx Carrier State TXO= 1 byte Command or Query.

Tx Carrier State, where:

0=OFF due to front panel or remote control command

1=ON

Example: TXO=1 (Tx Carrier ON)

TXO=

TXO?

TXO*

TXO#

TXO? TXO=x

Tx Output

Impendance

IMP= 1 byte Command or Query.

Tx output impedance, where:

0=50 Ohm

1=75 Ohm

Example: IMP=0 (Set impedance to 50 Ohms)

* NOTE: Setting Tx Impedence is only possible on 70/140 Mhz

units.

IMP=

IMP?

IMP*

IMP#

IMP? IMP=x

Tx Data Rate N/A 10 bytes Query Only.

Composite Tx Data rate, in kbps.

Resolution=1 bps.

Example: TDR=002047.999 (which is 2047.999 kbps)

TDR?

TDR*

TDR#

TDR? TDR=xxxxxx.xxx

1 2 ... 168 169 170 171 172 173 174 175 176 177 178 ... 251 252

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