Comtech EF Data CDM-750, Installation And Operation Manual

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CDM-750 Advanced High-Speed Trunking Modem Revision 2
Front Panel Operation MN-CDM750
5–53
5.2.5.3 Info: Tx
Tx:On 0050.0000MHz Pwr=-25.0 TSI=I
DVB-S2 NOR 130706.253kbps 32APSK 9/10
This screen displays the current Tx configuration and operating parameters. Note the following:
Display Line Item Status Description
Top line
Tx Carrier On or Off
Tx Frequency xxxx.xxxx MHz
Power Power Level (dBm)
TSI Tx Spectral Inversion: I=Inverted (on), N=Not inverted (off)
Bottom line
Encoder FEC type:DVB-S2
Tx Framing Framing Type: NOR = Normal, SB = Short Block
Tx Data Rate xxxxx.xxx kbps (an asterisk * indicates that the data sense is inverted)
(Modulation) QPSK, 8PSK, 16APSK, 32APSK
(FEC Rate) Displays the FEC rate.
5.2.5.4 Info: Rx
Rx:0070.0000MHz 02.0dB RSI=N
01544.000kbps QPSK 1/2
This screen displays the current Rx configuration and operating parameters. Note the following:
Display Line Item Status Description
Top line
Rx Frequency xxxx.xxxx MHz
Es/No 12.3 dB (Alarm Point)
RSI Rx Spectral Inversion, I=Inverted (on), N=Not inverted (off)
Bottom line
Data Rate xxxxx.xxx kbps (an asterisk * indicates that the data sense is inverted)
(Demodulation) QPSK, 8PSK, 16APSK, 32APSK
(FEC Rate) 1/2, 2/3, 3/4, 7/8, 0.95, 5/16, 21/44 or 1/1