Info: Tx; Info: Rx; Info: Clocks - Comtech EF Data CDM-625 Installation And Operation Manual

Advanced satellite modem 18 kbps – 25 mbps for firmware version 1.1.5 or higher
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CDM-625 Advanced Satellite Modem
Front Panel Operation
5.7.4

Info: Tx

Tx:On
Vit+RS:220/200 00064.000 QPSK
A sample display of Tx Info is shown. The information displayed here is as follows:
Top Line:
Tx Frequency
Bottom line:
Modulation
5.7.5

Info: Rx

Rx:0070.0000MHz
Vit+RS:126/112 01544.000 QPSK
A sample display of Rx Info is shown. The information displayed here is as follows:
TOP LINE:
Rx Frequency
Sweep Range
BOTTOM LINE:
Data Rate
Demodulation
FEC Rate
Descrambler
5.7.6

Info: Clocks

Clocks:Tx=Int(SCT) CEX=RxEnable E1-unbal
Rx=Int(SCT) Buffer=00016bytes
The Tx Clock, G.703 Clock Extension, Rx Clock, Reference, and Buffer information is
displayed.
0070.0000MHz
Tx Carrier
On, Off, or RTI
xxxx.xxxx MHz
Power Level (dBm)
Power
TSI
TSI = Tx Spectral Inversion, I=Inverted (on), N=Not inverted (off)
Encoder
FEC type: Viterbi, TCM, Vit+RS, TCM+RS, TPC, LDPC, None: DE-xxx
(DE is the Differential Encoder setting, shown as DE-Off or DE-On)
Data Rate
xxxxx.xxx kbps (an asterix * indicates that the data sense is inverted)
BPSK, QPSK, OQPSK, 8-PSK, 8-QAM, 16-QAM
1/2, 2/3, 3/4, 7/8, 0.95, 5/16, 21/44 or 1/1
FEC Rate
Scrambler
Scrm, None, or IESS (Turbo Only)
xxxx.xxxx MHz
Eb/No
12.3 dB (Alarm Point)
up to ± 32 kHz
RSI
RSI = Rx Spectral Inversion, I=Inverted (on), N=Not inverted (off)
Decoder
FEC type: Viterbi, TCM, Vit+RS, TCM+RS, TPC, LDPC, None: DE-xxx
(DE is the Differential Encoder setting, shown as DE-Off or DE-On)
xxxxx.xxx kbps (an asterix * indicates that the data sense is inverted)
BPSK, QPSK, OQPSK, 8-PSK, 8-QAM, 16-QAM
1/2, 2/3, 3/4, 7/8, 0.95, 5/16, 21/44 or 1/1
Scrm, None, or IESS (Turbo Only)
MN-0000036 (Ref MN/CDM625.IOM)
PWR=-20.0 TSI=N
7/8
02.0dB +-30 RSI=N
1/2
REF=Int10
5–54
Revision 1
Scrm
Scrm

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