Radyne DMD20 - Page 6

DMD20/20LBST Universal Satellite Modem Technical Specifications
MN-DMD20-20LBST Revision 14 7–2
LDPC/TPC (Optional)
LDPC (BPSK) {1/2}
LDPC (OQPSK/QPSK) {1/2, 2/3, 3/4}
LDPC (8PSK/8QAM) {2/3, 3/4}
LDPC (16QAM) {3/4}
Turbo (BPSK) {21/44}
Turbo (QPSK/OQPSK) {1/2, 2/3, 3/4, 7/8}
Turbo (8QAM/8PSK) {2/3, 3/4, 7/8}
Turbo (16QAM) {3/4, 7/8}
Outer Encoder Options Reed-Solomon INTELSAT (DVB Optional, Custom Rates
Optional)
Data Clock Source Internal, External, Rx Recovered
Internal Stability 1 x 10
-6
Typical (Optional to 5 x 10
-8
) DMD20
5 x 10
-8
Typical DMD20 LBST
7.3 Demodulator
Demodulation BPSK, QPSK, and OQPSK (8PSK, 16QAM Optional)
IF Tuning Range 50 to 90, 100 to 180 MHz in 1 Hz Steps
L-Band Tuning Range 950 to 2050 MHz in 1 Hz Steps
Impedance IF, 75-Ohm (50-Ohm optional)
L-Band, 50-Ohm
Connector BNC - 75 Ohm
SMA - 50 Ohm
N-type 50-Ohm LBST
Return Loss IF, 20 dB Minimum
SMA, 50-Ohm, L-Band
L-Band, 14 dB Minimum
Spectrum INTELSAT IESS 308/309/310 Compliant
Input Level 10 x log (Symbol Rate) - 100, ±12 dB
Adjacent Channel Rejection Ratio >+10 dBc
Total Input Power -10 dBm or +40 dBc (the Lesser) @ 256 Kbps
FEC Viterbi {1/2, 3/4, 7/8, None} K = 7
Sequential {1/2, 3/4, 7/8}
CSC {3/4}
Trellis (8PSK) {2/3}
DVB VIT {1/2, 2/3, 3/4, 5/6, 7/8}
DVB Trellis {2/3, 3/4, 5/6, 7/8, 8/9}
Turbo Product Code (Optional) – (SuperCard ONLY)
Turbo (BPSK) {21/44,5/16}
Turbo (OQPSK/QPSK) {1/2, 3/4, 7/8}
Turbo (8PSK) {3/4, 7/8}
Turbo (16QAM) {3/4, 7/8}
Legacy Turbo Rates {0.495, 0.793} < 5Mbps
LDPC/TPC (Optional)
LDPC (BPSK) {1/2}
LDPC (OQPSK/QPSK) {1/2, 2/3, 3/4}
LDPC (8PSK/8QAM) {2/3, 3/4}
LDPC (16QAM) {3/4}
Turbo (BPSK) {21/44}
Turbo (QPSK/OQPSK) {1/2, 2/3, 3/4, 7/8}
Turbo (8QAM/8PSK) {2/3, 3/4, 7/8}
Turbo (16QAM) {3/4, 7/8}
ER-DMD20LBS-EA14 Rev -