Radyne (Comtech EFData) DMD2050E (DMD20) Satellite Modem L-band 8PSK 8QAM 16QAM

The Radyne (Comtech EFData) DMD2050E 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), fully complies with STANAG 4486 Edition 3, as well as the IESS-308, IESS-309, IESS-310 & IESS–315 commercial standards.

The DMD2050E provides highly advanced and bandwidth efficient forward error correction (FEC). Advanced FEC options include Low Density Parity Check (LDPC), Turbo Product Codes (TPCs) and 165B Turbo Codes. 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, 8PSK, 8-QAM, 16-QAM and 16APSK.

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,

The DMD2050E also supports Information Throughput Adaptation (ITA). Also referred to as Adaptive Coding and Modulation (ACM), ITA enables modems on each side of a point-to-point link to use the modulation and coding combination that maximizes throughput, and automatically adapts the optimum operating point as conditions (such as weather) change.

Data rates range from 2.4kbps to 52Mbps and symbol rates from 4.8ksps to 30Msps. The modem provides standard MIL-STD-188-114 (EIA-530 / RS-422), and EIA-613 (HSSI) serial interfaces and 10/100/1000Base-T Gigabit Ethernet interfaces. A dual IF interface supports low IF (52-88, 104-176MHz), and L-Band (950-2,000MHz) frequency ranges.

Typical Users

• Government & Military

Common Applications

• Communications at-the-Pause
• Flyaway Communications
• Integrated Satellite Terminal Communications

 

Key Highlights

• Standards Compliance:
  -MIL-STD-188-165A (all modes)
  -STANAG 4486 Edition 3
  -OM-73
  -IESS-308/309/310/314/315

• Standard Data Interfaces
  -MIL-STD-188-114 (EIA-530)
  -EIA-613 (HSSI)
  -Ethernet 10/100/1000Base-T (GigE)

• Serial/Ethernet multiplexing capability
• AES-256 TRANSEC, FIPS-140-2 L2 certified
• Key Loader Interface
• Ethernet Flow Control & Quality of Service (QoS)
• Integrated DoubleTalk Carrier-in-Carrier
• LDPC, TPC, 165B Turbo, Viterbi, Reed Solomon, Trellis & Sequential FEC

• FEC rates 1/1, 5/16, 1/2, 2/3, 3/4, 7/8, 19/20 and others
• BPSK, QPSK, OQPSK, 8PSK, 8-QAM, 16-QAM, 16APSK
• Information Throughput Adaption (ITA)
• 4kbps to 52Mbps
• 70 ± 18 MHz and 140 ± 36 MHz IF, and 950 – 2000 MHz L-Band in 1 Hz steps
• DC-input power -48 VDC option
• High-stability reference
• Asynchronous overhead
• Automatic Uplink Power Control

We have various DMD2050E (DMD20) Satellite modems available from the shelf and can be released quickly after power-on test. We provide a 90-day warranty and we can ship worldwide EXW The Netherlands.

These modems are configured as follows:

• DMD20 Base Modem,
• BNC Connectors,
• 8PSK, 8QAM, 16QAM,
• Ethernet,
• L-band Tx/Rx Duplex,
• Turbo,
• LDPC 5Mbps,
• Sequential FEC.

All modems came out of a working environment and can be shipped quickly,

Datasheet Comtech (Radyne) DMD2050 Satellite Modem