Comtech Radyne DMD2050 MIL-STD-188-165A Military Satcom Compliant Satellite Modem
BPSK, QPSK, OQPSK, 8PSK, 16-QAM, 2.4 Kbps to 52 Mbps
DMD2050 Military Satellite Modem
The Radyne Comtech DMD2050 Satellite Modem is designed to comply with the widest possible range of U.S. Government and commercial standards, and is compatible with the largest number of satellite modems in the industry. It is fully compliant with MIL-STD-188-165A (all terminal types) and the IESS-308, IESS-309, IESS-310 IESS–315 & DVB-S commercial standards.
Advanced Forward Error Correction
The Radyne DMD2050 provides highly advanced and bandwidth-efficient forward error correction (FEC). Advanced FEC options include Turbo Product Codes (TPCs) and Low Density Parity Check (LDPC). Legacy support for Viterbi, Trellis, Concatenated Viterbi Reed-Solomon, and Sequential FEC are also included. A complete range of modulation types is supported, including BPSK, QPSK, OQPSK, 8-PSK, 8-QAM, and 16-QAM.
Carrier In Carrier
Advanced FEC and modulation capabilities are integrated with the revolutionary DoubleTalk Carrier-in-Carrier bandwidth compression allowing for maximum state-of-the-art performance under all conditions. This combination of advanced technologies enables multi-dimensional optimization, allowing satellite communications users to:
Minimize required satellite bandwidth
Maximize throughput without using additional transponder resources
Maximize availability (margin) without using additional transponder resources
Enable use of a smaller BUC/HPA and/or antenna
Or, a combination of the above to meet specific mission needs
Multiple Data Rate Options
Data rates range from 2.4 kbps to 52 Mbps and symbol rates range from 4.8 ksps to 30 Msps. The modem provides a standard MIL-STD-188-114 (EIA-530 / RS-422) serial interface. It can optionally be configured with EIA-613 (HSSI), G.703 (T1/E1/T2/E2 & T3/E3), DVB ASI/SPI and 10/100/1000Base-T Ethernet interfaces. Drop & insert functionality is supported on the G.703 interface. A dual IF interface supports low IF (52-88, 104-176 MHz), and L-Band (950-2000 MHz) frequency ranges. Cost-effective, ultra-high reliable systems are enabled in conjunction with the RCS-11 1:1 redundancy switch, and/or the RCS-20 M:N redundancy switch.
Bit Error Rate Performance
Features
Standards compliant: MIL-STD-188-165A (all modes), OM-73, IESS-308/309/310/314/315 and DVB-S per EN301-210 and EN300-421
Standard MIL-STD-188-114 (EIA-530/RS-422) serial data interface
Interface options include Ethernet 10/100/1000Base-T (GigE), Ethernet 10/100Base-T (Fast Ethernet), HSSI, G.703 T1/E1-T2/E2, G.703 T1/E1-T2/E2 & T3/E3, HSSI & Ethernet 10/100Base-T, HSSI & G.703 T1/E1-T2/E2, HSSI & G.703 T1/E1-T2/E2 & T3/E3, DVB ASI/SPI
Ethernet flow control & Quality of Service (QoS)
Integrated DoubleTalk Carrier-in-Carrier
LPDC, TPC, Viterbi, Reed-Solomon, Trellis, Sequential, DVB-S FEC
SpecificationsModulation BPSK, QPSK, OQPSK, 8-PSK, 8-QAM and 16-QAM |
|
IF Tuning Range |
70 ± 18 MHz and 140 ± 36 MHz in 1 Hz steps |
L-Band Tuning Range |
1350 ± 400 MHz and 1500 ± 500 MHz in 1Hz steps |
Impedance |
IF: 50 Ohm (75 Ohm optional) L-Band: 50 Ohm |
Connector |
TNC: 50 Ohm SMA: 50 Ohm, L-Band |
VSWR |
IF < 1.5:1, L-Band < 2.0:1 |
Output Power |
0 to -25 dBm |
Output Stability |
IF: ±0.5 dB over frequency and temperature L-Band: ±.5 dB over frequency and temperature |
Output Spectrum |
Selectable and meets MIL-188-165A or IESS-308/309/310 power spectral mask (DVB-S optional) |
Spurious |
-55 dBc In-band (50 to 90 MHz, 100 to 180 MHz, 950 to 2050 MHz) -45 dBc Out-of-band |
On/Off Power Ratio |
>60 dB |
Scrambler |
OM-73, CCITT V.35 or IBS |
FEC |
Viterbi, K = 7: 1/2, 3/4 and 7/8 Trellis: 2 /3 Turbo Product Code (optional) BPSK 5/16, 21/44 QPSK/OQPSK 21/44, 3/4, 7/8 8-PSK/16-QAM 3/4, 7/8 LDPC (optional) BPSK: 1/2 QPSK/OQPSK: 1/2, 2/3, 3/4 8-PSK/8-QAM: 2/3, 3/4 16-QAM: 3/4 |
Outer Encoder |
Reed-Solomon Intelsat (DVB optional) Custom (N, K) Reed-Solomon (optional) |
Data Clock Source |
Internal, external, RX recovered |
Internal Stability 5 x 10-8 DemodulatorDemodulation BPSK, QPSK, OQPSK, 8-PSK, 8-QAM and 16-QAM |
|
IF Tuning Range |
70 ± 18 MHz and 140 ± 36 MHz in 1 Hz steps |
L-Band Tuning Range |
1350 ± 400 MHz and 1500 ± 500 MHz in 1 Hz steps |
Impedance |
IF: 50 Ohm (75 Ohm optional) L-Band: 50 Ohm |
Connector |
TNC: 50 Ohm SMA: 50 Ohm, L-Band |
VSWR |
IF < 1.5:1, L-Band < 2.0:1 |
Spectrum |
Selectable and meets MIL-188-165A or Intelsat IESS-308/309/310 compliant |
Input Level |
-55 to +10 dBm |
Total Input Power |
+20 dBm or +40 dBc (the lesser) |
FEC |
Viterbi, K = 7: 1/2, 3/4 and 7/8 Trellis: 2 /3 Turbo Product Code (optional) BPSK 5/16, 21/44 QPSK/OQPSK 21/44, 3/4, 7/8 8-PSK/16-QAM 3/4, 7/8 LDPC (optional) BPSK: 1/2 QPSK/OQPSK: 1/2, 2/3, 3/4 8-PSK/8-QAM: 2/3, 3/4 16-QAM: 3/4 |
Outer Decoder Options |
Reed-Solomon Intelsat (DVB-S optional) Custom (N, K) Reed-Solomon (optional) |
Typical Users
Government & Military
Common Applications
Communications atthe-Pause
Communications onthe-Move
Flyaway Communications
Integrated Satellite
Terminal Communications