Config: Rx Inv; Config: Rx Misc; Config: Rx - Comtech EF Data CDM-Qx Installation And Operation Manual

CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier®
Front Panel Operation
5.4.3.9

CONFIG: Rx

Rx Inversion functions:
Spectrum
To set the Transmit Inversion Functions, select Spectrum, Data, or Clock using the ◄ ► arrow
keys, then press
CONFIG: Rx
Rx Spectral Inversion:
Normal Inverted
Select Normal or Inverted using the ◄ ► arrow keys, then press
CONFIG: Rx
Rx Data Sense:
Normal Inverted
Select Normal or Inverted using the ◄ ► arrow keys, then press
CONFIG: Rx
Rx Clock Inversion:
Normal Inverted
Select Normal or Inverted using the ◄ ► arrow keys, then press
5.4.3.10 CONFIG: Rx
Rx Misc: EbNo
Select EbNo or Rxα using the ◄ ► arrow keys, then press
CONFIG: Rx
Rx Clock Inversion:
Normal Inverted
If the Eb/No falls below this selected value, a receive traffic fault will be generated. To set the
EbNo alarm, edit the Eb/No alarm point by first selecting the digit to be edited using the
arrow keys; then, edit the value of that digit by using the
when done. The range of values is from 2.0 to 16.0 dB.
CONFIG: Rx
Tx Roll-off: 20%
To set the Receive Roll-off (α) Factor, select 20% or 35% using the ◄ ► arrow keys, then
press
ENTER
Inv
Data Clock (◄ ►,ENT)
.
ENTER
Inv Spectrum
(◄ ►,ENT)
Inv Data
(◄ ►,ENT)
Inv Clock
(◄ ►,ENT)
Misc
Rxα
Misc EbNo
(◄ ►,▲ ▼,ENT)
Misc Rxα
35%
. Note that the default is 35%.
(◄ ►,ENT)
ENTER
(◄ ►,ENT)
5–27
Revision 7
MN/CDMQX.IOM
.
ENTER
.
ENTER
.
ENTER
.
arrow keys. Press ENTER
◄ ►