Demodulator - Comtech EF Data DMD-2050E Installation And Operation Manual

DMD2050E Universal Satellite Modem
Turbo (16-QAM)
DVB VIT
DVB Trellis
LDPC (BPSK)
LDPC (OQPSK/QPSK)
LDPC (8-PSK/8-QAM)
LDPC (16-QAM)
STANAG Turbo (B/QPSK)
STANAG Turbo (8-PSK)
STANAG Turbo (16-APSK)
Outer Encoder Options
Data Clock Source
Internal Stability
7.2

Demodulator

Demodulation
IF Tuning Range
L-Band Tuning Range
Impedance
Connector
Return Loss
Spectrum
Input Level
Total Input Power
FEC
Viterbi,
Sequential
CSC
Trellis (8-PSK)
Turbo (BPSK)
MN-DMD2050E Revision 2
Modulator Specifications
{3/4, 7/8} 20Mbps
{2/3, 5/6}
{3/4, 5/6, 7/8, 8/9}
{1/2}
{1/2, 2/3, 3/4}
{2/3, 3/4}
{3/4}
{1/2, 2/3, 3/4, 7/8, 19/20, None}
{1/2, 2/3, 3/4, 7/8, 19/20, None}
{1/2, 2/3, 3/4, 7/8, 19/20, None}
Reed-Solomon INTELSAT (DVB Optional)
Custom (N, K) Reed-Solomon
Internal, External, Rx Recovered
5 x 10
-8
Demodulator Specifications
BPSK, QPSK, OQPSK, 8-PSK, 8-QAM, 16-QAM, 16-APSK
50 to 90, 100 to 180 MHz in 1 Hz Steps
950 to 2050 MHz in 1 Hz Steps
IF, 50 Ohm (75 Ohm Optional)
L-Band, 50 Ohm
TNC, 50 Ohm
SMA, 50 Ohm, L-Band
IF, 1.5:1
L-Band, 2.0:1
MIL-188-165A, INTELSAT IESS 308/309/310, DVB
-55 to +10 dBm
and 10 log (Symbol Rate) -120 dBm / Hz, SR < 2500 k
+20 dBm or +40 dBc (the Lesser)
{1/2, 3/4, 7/8, None} K = 7
{1/2, 3/4, 7/8}
{3/4}
{2/3}
{21/44,5/16} 20Mbps
Technical Specifications
7–2