Comtech EF Data C5 - Manual (Page 37)

C5/K1/K3 Integrated Satellite Terminal System Specifications
Rev. 0 2–3
2.1.1 C-Band Receive Specifications
Refer to Table 2-2 for receive specifications.
Table 2-2. C-Band Receive Specifications
Parameter Specifications
Frequency Range 3.7 to 4.2 GHz
Frequency Resolution 100 Hz
Noise Figure
" 20 dB
RX Image Rejection 45 dBm minimum
Aggregate Signal Level,
Maximum -27 dBm at ODU down converter input
Symbol Rate Range (variable) 4.8 to 2500 ks/s
Data Rate Range (variable):
QPSK
BPSK 4.8 to 4375 kbit/s, in 1 bit/s steps
2.4 to 1250 kbit/s, in 1 bit/s steps
Forward Error Correction Viterbi K = 7 decoder, 1/2, 3/4, and 7/8 rate
Optional: Sequential k = 36 1/2, 3/4 and 7/8 rate
Optional: Reed-Solomon IESS 308/309
Concatenated 225, 205, T = 10.
Modulator Output IF Shape EFD Closed
CSC Closed
FDC Closed
Demodulation Coherent QPSK or BPSK
Acquisition Range 0 to 70 kHz in 1 Hz steps
Bit Error Rate (BER):
Viterbi 1/2 rate
Viterbi 1/2 rate with Reed-
Solomon 1 x 10 -8 for E
b
/N
0
7.2 dB
1 x 10 -10 for E
b
/N
0
5.0 dB
Ambiguity Resolution Method Differential decoder
Descrambling CCITT V.35 IESS modified, CCITT V.35 (EFD/CSC), FDC, 2 15 -1
SYNC
Clock Jitter 2.0 dB maximum jitter gain, 4% RMS of 1/data rate absolute.