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RM34 ULTRA-WIDEBAND SDM | 70 MHz – 500 kHz

Marcom - Defence and Security Solutions   →  Ultra-Wideband SDM   →  RM34 ULTRA-WIDEBAND SDM | 70 MHz – 500 kHz

RM34 ULTRA-WIDEBAND SDM | 70 MHz – 500 kHz

The RM34 Ultra-Wideband Software Defined Modem (SDM) / 70 MHz is a purpose-built, standalone hardware platform for high-capacity data communication over V/UHF radio channels using STANAG 4691 waveforms. Designed to meet the requirements of naval and government end-users, the RM34 delivers high-performance, long-distance line-of-sight (LOS) data communications for strategic and maritime operations. With its ability to achieve data rates of up to 1.92 Mbps in 500 kHz UHF LOS channels, the RM34 offers data speed, quality, and security comparable to SATCOM systems – without the associated infrastructure.

  • Ultra-Wideband HF Data Modem: STANAG 4691-B, C, D and E
  • Compatibility: RC34 Ultra-Wideband Network Controller and RI34 IP-to-Sync Controller (Datasheets Available)
  • Configuration and Control Protocols: RAP1/RIPC (RapidM Proprietary Protocols)
  • Local Configuration and Control: Menu-Driven Front Panel
  • External Interfaces:
    • DTE Port: EIA 530 Synchronous/Asynchronous, RS-232/RS-422 (From Crypto/Controller)
    • Ethernet CTRL LAN Interface: Management and Control
    • Ethernet DATA LAN Interface: Raw Data TCP/IP
    • Ethernet AUX LAN Interface: Digital Audio
    • Radio Audio: 70 MHz RF Radio Interface
    • Radio Audio: Analog Audio, Balanced 600 Ω and RS-232 Radio Control
    • Radio Audio: Digital Audio, Based on VITA 49.2 Protocol
    • Remote Control and GPS: RS-232/RS-422 and Ext. GPS (NMEA and 1 PPS)
  • Robust Environmental Specifications:
    • High-Temperature Range
    • High Shock and Vibration Resistance
    • High MTBF
  • Long-Term Reliability: Offering a 15-year Product Lifecycle and 20-year Spares Availability
RM34 Ultra-Wideband SDM DATASHEET

Applications

The integrated V/UHF waveforms address the increasing need for higher throughput to support internet protocol (IP)-based data exchange and emerging high-capacity applications. These include naval and strategic situational awareness systems, enabling effective command and control (C2) across diverse operational environments.Featuring a compact form factor and robust environmental specifications, the RM34 is ideal for deployment across diverse naval and maritime platforms, including surface vessels, submarines, and aircraft. The standard interfaces offered by the RM34 seamlessly integrate with V/UHF transceivers, cryptographic equipment, and management systems, facilitating convenient deployment in various operational environments.

STANAG 4691 Waveforms

The RM34 modem implements STANAG 4691/AComP-4691 (Edition 1), Annexes B to E, which specifies a family of V/UHF waveforms. The waveforms operate across bandwidths of 25, 100, 300 and 500 kHz bandwidths.The RM34 supports the following waveform data rates:

  • S4691 E (500 kHz) – 180 kbps to 1920 kbps
  • S4691 D (300 kHz) – 112.5 kbps to 1152 kbps
  • S4691 C (100 kHz) – 32 kbps to 384 kbps
  • S4691 B (25 kHz) – 16 kbps to 96 kbps
  • S4691 B (20 kHz) – 12.8 kbps to 76.8 kbps (Extension of Standard Annex B Implementation)

Product Family and Longevity

The RM34 belongs to a family of 19-inch rack-mount units, including the RC34 and RI34, designed to deliver STANAG 4691 (MARLIN). The RM34 guarantees a 15-year product lifecycle and 20 years of spare availability, ensuring long-term reliability and support.

HF Software Pack Inclusion Table

OptionDescriptionAutomatically Includes
WDWideband HF data modems compliant with MIL-STD-188-110D Appendix D and STANAG 5069, offering user data rates from 75 bps to 240 kbps across bandwidths ranging from 3 kHz to 48 kHz• W1 – MS110D and STANAG 5069, Blocks 1, 2 and 3

• M1 – Narrowband LF and HF Modem (SSB, ISB, Up to 19200 bps)

• M2 – Narrowband HF Modem (SSB, Up to 9600bps)

4G ALEWideband automatic link establishment (WALE) and fourth generation(4G) ALE• 3G ALE

• 2G ALE

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