Comtech EF Data Vipersat SLM-5650A, Installation And Operation Manual

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SLM-5650A Satellite Modem
Revision 10
Specifications 2–4 MN-SLM-5650A
Table 2-4. Summary of Demodulator Specifications
Demodulator Specifications
Parameter Specifications
Input Carrier Power
• 70/140MHz: +10 to –55 dBm
• L-Band:
o
+10 to –55 dBm carrier (SR > 3.2 Msps)
o
+10 to [–55 - 10log
10
(3.2/SR)], (SR ≤ 3.2 Msps)
Maximum Composite Power +20 dBm or +40 dBc
Input Impedance
50
Ω
Input Connectors
•
70/140 MHz:
o
TNC for 52 to 88 MHz
o
104 to 176 MHz
• L-Band: Type ‘N’ for 950 to 2000 MHz
Carrier Acquisition Range
±
30 kHz, selectable
Input Return Loss
• 70/140 MHz: –14 dB
•
L-Band: –9 dB
Buffer Clock Internal, Tx Terrestrial, Rx Satellite
Doppler Buffer 32 to 16,777,216 bits, selectable
Demodulator Spectral Inversion The modem can invert the demodulator spectrum.
Table 2-5. Summary of Coding Options
Coding Options
Parameter Specifications
Uncoded 1/1
Viterbi (rates)
•
K=7
•
1/2
• 3/4
•
7/8
V Reed-Solomon Closed Network per IESS-308 and IESS-309
Trellis IESS-310
Reed-Solomon IESS-310
Turbo Turbo Product Coding (TPC) per IESS-315
LDPC: ULL, LL, and HP Closed Network