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CDM-600 Satellite Modem Revision 7
Front Panel Operation MN/CDM600.IOM
6–33
INFO: TX
A sample display of TX Info is shown. The information displayed here is as follows:
Top Line:
TX carrier
TX Frequency
Impedance
Power
TSI
ON, OFF, or RTI
xxxxx.xxx MHz
50 or 75 Ω
Power Level (dB)
TSI = TX Spectral Inversion, I=Inverted (on), N=Not inverted (off)
Bottom line:
Encoder
Data Rate
Modulation
FEC rate
Scrambler
FEC type: VITERBI, SEQ, TCM, VIT+RS, SEQ+RS, TCM+RS, TPC, LDPC
NONE: x (x = 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)
INFO: RX
A sample display of RX Info is shown. The information displayed here is as follows:
Top line:
RX Frequency
Impedance
Eb/No
Sweep Range
RSI
XXXXX.XXX MHz
50 or 75 Ω
12 dB (Alarm Point)
up to ± 32 kHz
RSI = RX Spectral Inversion, I=Inverted (on), N=Not inverted (off)
Bottom line:
Decoder
Data Rate
Demodulation
FEC rate
Descrambler
FEC type: VITERBI, SEQ, TCM, VIT+RS, SEQ+RS, TCM+RS, TPC, LDPC
NONE: x (x = 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)
TX:ON 070.00000MHz Z=50 PWR=-20.0 TSI=
N
V
IT+RS:220
/
200 00604.000
Q
PSK 7
/
8 SCRM
RX:070.00000MHz Z=50 02.0dB +-30 RSI=
N
V
IT+RS:126/112 00604.000 QPSK 1/2 SCRM