SLM-5650B Satellite Modem
Revision 2
Introduction 1–16 MN-SLM-5650B
Table 1-6. Summary of Demodulator Specifications
Demodulator Specifications
Parameter Specifications
Input
Power
Desired Carrier
+10 to -55 dBm
For L-Band:
+10 to -55 dBm (SR>3.2 MSPS)
+10 to 10·log
10
(SR/32000) -75 dBM
(SR≤3.2 MSPS) where SR is in symbols per second
Maximum Composite +20 dBm or +40 dBc
Input Impedance
50 Ω
Input Connectors TNC for 52 to 88, 104 to 176
Type N for 950 to 2000 MHz
Carrier Acquisition Range
± 30 kHz, selectable
-9 dB (L-Band)
Buffer Clock INT, Tx Terrestrial, Rx Satellite
Doppler Buffer 128 to 4,194,304 bits, or 2 to 60 mSec
Table 1-7. Summary of Coding Options
Coding Options
Parameter Specifications
Uncoded 1/1
K=7, 1/2, 3/4, and 7/8 rates
Closed Network, per IESS-308, and IESS-309
Trellis IESS-310
Trellis + Reed-Solomon IESS-310
Turbo Turbo Product Coding (TPC), per IESS-315
LDPC: ULL, LL, and HP Closed Network