Standards Compliant Modems

High-performance, standards-compliant, HF and VHF/UHF data modems for strategic, naval and commercial platforms. Naval and strategic operations require interoperability among a diverse set of radio communication systems. This enables allied nations to operate in synergy and successfully manage complex missions. RapidM knows the ropes and can assist system integrators in navigating their way through this dynamic domain with our continually expanding range of maritime communication products.
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.


RM12 Wideband SDM & ALE – 48 kHz

The RM12 Wideband SDM & ALE is a high-performance wideband data modem for beyond-line-of-sight (BLOS) HF communications in channels from 3 to 48 kHz. Ideal for naval vessels, aircraft, and NATO shore stations, the RM12 supports MIL-STD-188-110D and STANAG 5069 waveforms, delivering data rates up to 240 kbps. It features 4G ALE (WALE) for fast and deep link establishment and supports 2G/3G ALE for seamless network integration. Built for longevity, the RM12 offers a 15-year lifecycle with 20 years of spares availability.


RM10 Wideband SDM & ALE – 24 kHz

The RM10 Wideband SDM & ALE is a high-performance data modem designed for beyond line-of-sight communications, supporting wideband HF channels with data rates up to 120 kbps. It offers advanced features like 4G ALE, WB-RDL waveforms for noisy environments, and compliance with MIL-STD-188-110C (App D) and STANAG 5069. Designed for naval, maritime, and government applications, the RM10 ensures reliable long-range communication in challenging conditions and is suitable for platforms like ships, submarines, and aircraft. It is also deployable in high-power NATO shore stations with configurations like BRASS, BRE1TA, and BRIPES.


RM8 Software Defined Modem & ALE – 3, 6 kHz

The RM8 Software Defined Modem & ALE Controller is a high-data-rate LF/HF modem and ALE controller, for standards-based strategic and maritime communications. Supporting long-distance point-to-point links and NATO BRASS and BRE1TA shore station deployments, the RM8 offers split-site 2G and 3G ALE with advanced scanning, channel selection, and XDL packet data. It fits into 19-inch racks and accommodates two units in a 1U slot.


RM6-A Data Modem & ALE – 3, 6 kHz

The RM6-A is a high data rate LF and HF data modem and ALE controller for standards-based BLOS naval and strategic data communications.


RM5 Rugged High-Speed Modem – 3 kHz

The RM5 is a MIL-STD-188-110A/B HF data modem with a rugged, field-hardened enclosure. The modem is created with disaster relief agencies in mind. These agencies often need standardised interoperability in harsh and unpredictable environments. The unit also fits well with military and paramilitary organisations.


ARQ & IP Controllers

Automatic Repeat Request (ARQ) and IP data solutions to systems integrators of RED-side equipment. RC products deliver error-free data (email, chat, position) over HF and VHF/UHF links, and can be trusted in severely degraded channel conditions. RC products are designed to be used in combination with our RM modems and external link encryptors.
RC34 Ultra-Wideband Network Controller | 1.92 Mbps

The RC34 Ultra-Wideband Network Controller is a software-defined OSI Layer 2 and Layer 3 product for V/UHF line-of-sight (LOS) radio data communication. Housed in a 19-inch rack-mountable unit, it features a STANAG 4691 Appendix A Mobile Ad-Hoc Relay Line of Sight Networking (MARLIN) controller.


RC12 Wideband ARQ & IP Controller – 240 kbps

The RC12 ARQ Server and IP Controller is a rack-mount platform designed for the STANAG 5066 ARQ protocol, enabling efficient data communication over HF and V/UHF radio links. It supports military messaging, email, chat, and IP applications, with an embedded MARLIN STANAG 4691 network controller for V/UHF ELOS links. The RC12 also features a STANAG 4591 MELPe voice coder for digital voice interoperability. Ideal for NATO and naval communication systems, it’s a robust solution for systems integrators.


RC10 Wideband ARQ & IP Controller – 120 kbps

The RC10 ARQ Server and IP Controller is a rack-mount platform for the STANAG 5066 ARQ protocol, enabling military messaging, email, chat, and IP applications over HF BLOS and V/UHF ELOS radio links. With an embedded STANAG 5066 protocol stack and MARLIN STANAG 4691 network controller, the RC10 is ideal for strategic and naval HF data communications, including NATO systems.


RC8 ARQ Server & IP Controller – 19.2 kbps

The RC8 ARQ Server & IP Controller is a purpose-built platform for Automatic Repeat reQuest (ARQ) communications functions based on STANAG 5066 and STANAG 4538. The RC8 complies to all the mandatory features and aspects of the STANAG 5066 Edition 3 specification.


RC8X4 Quad ARQ Server & IP Controller – 19.2 kbps

The RC8X4 Quad ARQ Server & IP Controller is a purpose-built stand-alone hardware platform housing four independent Automatic Repeat reQuest (ARQ) and Vocoder functions used in maritime and strategic long-range (BLOS) communications systems. The RC8X4 complies to all the mandatory features and aspects of the STANAG 5066 Edition 3 specification.


RI10 IP-TO-SYNC Controller – 120 kbps

The RI10 IP-to-Sync Controllers are a pair of 19-inch rack-mountable hardware for transferring synchronous serial data over Ethernet (TCP/IP). By utilising the RI10, the transfer of encrypted bulk data over IP over extended distances for split-site systems are possible whilst leveraging on the already installed base of high-performance COMSEC devices. Besides, transferring the data, the RI10 product also operates as a split-site controller for configuration, control and status.


Other

RCSC-PCIe Synchronous PCIe Serial Card / DATA X2

The RapidM Synchronous Serial Card (RCSC-PCIe) is a PC-based interface card designed to support the NATO defence communications protocols STANAG 5066 and STANAG 4691 requiring synchronous serial communication interfaces. The RCSC-PCIe is a dual-port data communication equipment (DCE) device based on the PCI Express (PCIe) expansion bus standard.


RCSC-PCI Synchronous PCI Serial Card

The Synchronous PCI Serial Card is shipped with Windows XP and 2000-compliant setup application that installs the serial card driver and interface DLL on the user system.


19″ Rack Mounting Kit

19″ Rack Mounting Kit for HF modem and ALE controllers