Table 2-8. Doppler Requirements; Table 2-9. Data Quality Performance Specification - Comtech EF Data SLM-5650A Installation And Operation Manual

Doppler Shift in Hz
Doppler Rate of Change in Hz/sec
Doppler Acceleration in Hz/sec
Parameter
OM-73 Compatible Mode
MIL-STD-188-165A
Compatible Mode
IESS-308 Compatible
Mode
IESS-309 Compatible
Mode
IESS-310 Compatible
Mode
16QAM Coding Mode
Turbo Coding Mode
Sequential Mode
LDPC Coding Mode
Specifications

Table 2-8. Doppler Requirements

Parameter
2

Table 2-9. Data Quality Performance Specification

Data Quality Performance Specification
Operating in the OM-73-compatible mode, SLM-5650A BER vs. E
with differential encoding and data scrambling enabled does not exceed values
shown in Table 2-10 through Table 2-15.
Operating with BPSK, QPSK, or OQPSK modulation in the MIL-STD-188-165A
compatible mode, SLM-5650A BER vs. E
encoding and data scrambling enabled, will be equal to or better than the values
shown in Table 2-10 (without Reed-Solomon) or Table 2-11 (with Reed-Solomon) as
tested in an IF back-to-back configuration over the BER range 5 x 10
Operating with 8PSK modulation and rate 2/3 pragmatic Trellis coding (without
Reed-Solomon outer coding), SLM-5650A BER vs. E
or equal to the values shown in Table 2-12 when tested in an IF back-to-back
configuration.
Operating with 8PSK modulation, rate 2/3 pragmatic Trellis coding, and Reed-
Solomon (219,201) outer coding, SLM-5650A BER vs. E
than or equal to the values shown in Table 2-13 when tested in an IF back-to-back
configuration.
When operating in the IESS-308 Compatible Mode, SLM-5650A BER vs. E
performance is as specified in IESS-308.
When operating in the IESS-309 Compatible Mode, SLM-5650A BER vs. E
performance is as specified in IESS-309.
When operating in the IESS-310 Compatible Mode, SLM-5650A BER vs. E
performance is as specified in IESS-310.
The SLM-5650A operating in the 16QAM mode provides back-to-back BER vs.
E /N performance better than or equal to the values shown inTable 2-14 when
b 0
using the modulation formats indicated.
The SLM-5650A operating in the Turbo Code Mode provides back-to-back BER vs.
E /N performance better than or equal to the values shown in Table 2-15 when
b 0
using the modulation formats indicated.
The SLM-5650A operating in the Sequential Mode provides back-to-back BER vs.
E /N performance better than or equal to the values shown in Table 2-16 when
b 0
using the modulation formats indicated.
The SLM-5650A operating in an LDPC Mode provides back-to-back BER vs E
performance better than or equal to the values shown in Table 2-18 through Table
2-20 when using the indicated block size and modulation formats.
C-Band X-Band
±2475 ±3535
±226 ±270
±243 ±290
Specification
/N performance, with differential
b 0
2–6
SLM-5650A Satellite Modem
Revision 10
Ku-Band Ka-Band
±6045 ±11,810
±490 ±1046
±526 ±1124
/N performance
b 0
to 1 x 10 .
-3 -7
/N performance is less than
b 0
/N performance is better
b 0
/N
b 0
/N
b 0
/N
b 0
/N
b 0
MN-SLM-5650A