Comtech EF Data CDM-750, Installation And Operation Manual

Page: 190 / 300

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Serial-based Remote Product Management MN-CDM750
7–12
Parameter
Type
Command
(Instruction
& Qualifier)
Number of
Arguments
Description of Arguments
Response to
Command
Query
(Instruction &
Qualifier)
Response to Query
Tx Pilot TPI= 1 byte, value
of 0 or 1
Command or Query.
Set or return Tx Pilot in the form x, where:
0 = Off
1 = On
Example: TPI=0 (selects Pilot Off)
NOTE: CEFD recommends that you use Pilots when running any 16-APSK or 32-APSK MODCOD. Additionally,
Pilots are recommended when the symbol rate is below 5000 Ksps.
TPI=
TPI?
TPI*
TPI#
TPI? TPI=x
Tx Pilot
Location N/A 1 byte, value
of 0 Query only.
Returns Tx Pilot location in the form 0, where:
0 = Average Power
Example: TLP=0 (which returns Average Power)
N/A TLP? TLP=0
Tx Power
Level
TPL= 4 bytes Command or Query.
Set or return Tx Output power level (dBm) in the form sxx.x, where:
s = sign (+ or -)
xx.x = power level (dBm) in 0.1 db steps:
L-Band: 0 to -40 dBm
70/140 MHz: 0 to -25 dBm
Example: TPL=-13.4
TPL=
TPL?
TPL*
TPL#
TPL? TPL=sxx.x
(see Description of
Arguments)
Tx Carrier
State
TXO= 1 byte, value
of 0 or 1
Command or Query.
Set or return Tx Carrier State in the form x, 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
(see Description of
Arguments)