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CDM-600 Satellite Modem Revision 7
Remote Control MN/CDM600.IOM
16–12
Parameter
Type
Command
(Instruction
Code and
Qualifier)
Arguments
for Command
or Response
to Query
Description of Arguments
Response
to
Command
Query
(Instruction
Code and
Qualifier)
Response to Query
Remote
Eb/No
N/A
4 bytes
Query only.
Returns the value of Eb/No of the remote demod.
Responds 99.9 = remote demod unlocked.
Responds xx.x if EDMAC is disabled.
xx.x=02.0 to 16.0
Example: REB=12.4
Note: For values > 16.0 dB, the reply will be 16.0
N/A REB? REB=xx.x
(see description of
arguments)
Tx Power
Level
Increase
N/A 3 bytes Query only.
Returns the increase in Tx power level, in dB (from the
nominal setting) due to the action of AUPC.
Responds x.x if AUPC is disabled.
Example: PLI=2.3
N/A PLI? PLI=x.x
(see description of
arguments)
Tx Clock
Source
TCK= 1 byte, value
of 0 thru 3
Command or Query.
Tx Clock Source, where:
0=Internal
1=Tx Terrestrial
2=Rx Loop-Timed
3=External Clock
Example: TCK=0 (selects Internal)
TCK=
TCK?
TCK*
TCK#
TCK? TCK=x
(see description of
arguments)
Invert Tx Data ITD= 1 byte, 0 or 1 Command or Query.
Invert Transmit Data
0=Normal
1=Inverted
Example: ITD = 1 (selects Inverted TX Data)
ITD=
ITD?
ITD*
ITD#
ITD? ITD=x
(see description of
arguments)
Tx Audio
Volume
Control
TVL= 4 bytes Command or Query. (Audio/IDR Parameter)
Tx Audio Volume control, in the form aabb, where:
aa=Tx 1 volume control in dB, values defined below.
bb=Tx 2 volume control in dB, values defined below.
Valid values: -6, -4, -2, +0, +2, +4, +6, +8
Example: TVL= -2+4 (sets Tx 1 to 2 dB and Tx 2 to +4 dB)
TVL=
TVL?
TVL*
TVL#
TVL?
TVL=aabb
(see description of
arguments)