Acquisition Time - Comtech EF Data SNM-1001L Installation And Operation Manual

SNM-1001L Satellite Modem
Specifications
A.9

Acquisition Time

The acquisition times apply for QPSK only.
Code Rate
1/2
1/2
1/2
1/2
1/2
1/2
Code Rate
1/2
1/2
1/2
1/2
1/2
1/2
1/2
Code Rate
1/2
1/2
1/2
1/2
1/2
1/2
Note: Acquisition time with Turbo coding TBD.
Viterbi
6 dB E b /N 0 with ± 35 kHz Frequency Uncertainty
Data Rate
< 9.6 kbps
≥ 9.6 < 64 kbps
≥ 64 < 190 kbps
≥ 190 < 512 kbps
≥ 512 < 1000 kbps
≥ 1 < 2.5 Mbps
Sequential
6 dB E b /N 0 with ± 35 kHz Frequency Uncertainty
Data Rate
2.4 < 4.8 kbps
≥ 4.8 < 9.6 kbps
≥ 9.6 < 64 kbps
≥ 64 < 190 kbps
≥ 190 < 512 kbps
≥ 512 < 1000 kbps
≥ 1 < 2.5 Mbps
Viterbi
6 dB E b /N 0 with ± 3 kHz Frequency Uncertainty
Data Rate
< 9.6 kbps
≥ 9.6 ≤ 64 kbps
≥ 64 ≤ 190 kbps
≥ 190 < 512 kbps
≥ 512 < 1000 kbps
≥ 1000 ≤ 25 Mbps
A–22
T acq P (t < T acq )
< 10 sec 95%
< 5 sec 95%
< 1 sec 95%
< 10 sec 95%
< 2.5 sec 95%
< 1 sec 95%
T acq P (t < T acq )
< 20 sec 95%
< 10 sec 95%
< 5 sec 95%
< 1 sec 95%
< 17 sec 95%
< 2.5 sec 95%
< 1 sec 95%
T acq P (t < T acq )
3 sec 95%
2 sec 95%
1 sec 95%
3 sec 95%
2 sec 95%
1 sec 95%
Revision 1
MN/SNM1001L.IOM