HF & Software-Defined Radios
Transportable HF Radio System
HF SDR series (1.6-30 MHz) covering 30 km to 1000 km with fixed base station, vehicle-mounted and manpack models.
Overview
HF SDR series (1.6-30 MHz) covering 30 km to 1000 km with fixed base station, vehicle-mounted and manpack models. Smart frequency selection removes manual channel management, a minimum data-rate mode keeps command traffic flowing when normal links fail, data transfer runs up to 38.4 kbps, and AES-256 with customized encryption secures voice and data.
HF radios are a core tool for government, professional and emergency communications, offering long-range, highly reliable and anti-jamming data transmission. Even during network outages or in complex environments they ensure timely and secure transmission of command, decision-making and rescue information.
The Field HF Radio series includes a fixed base station, a vehicle-mounted version and a manpack model, providing communication coverage from 30 km to 1000 km for different users and environments (coverage figures are stated as reference only, depending on antenna configuration, transmission power, location, terrain and other environmental factors). The Fast Frequency Selection waveform scans 2 MHz to 29.99999 MHz between master and slave radios with multiple parallel receptions.
An Intelligent Probe performs channel-quality detection during idle periods, Intelligent Frequency Selection uses an SDR architecture with spectrum awareness and a historical frequency database, and Intelligent Link Maintenance monitors and restores the link automatically. A "minimum data rate mode" ensures critical message delivery when standard links fail, by reducing data rates to create a resilient survival channel that can push commands through severe interference and harsh terrain.
125 W and 1000 W power amplifiers and a 125 W automatic antenna tuner extend range and adapt the system to different antenna types.
Provide a self-contained, satellite-independent long-haul bearer for secure voice and data across a 30-1000 km operating envelope for government, professional and emergency users.
Technical · 22 parameters
Specifications
Key features
- Smart frequency selection — Instantly identifies and selects the best frequency, simplifying operation - no manual input required.
- Minimum data rate mode
- Data transfer — Secures field files and images at speeds up to 38.4 kbps using advanced modulation, coding and encryption.
- Ruggedized design — MIL-STD-810H for low and high temperature, vibration, drop, waterproofing, sand and dust, salt fog.
- Voice message service — Voice message sending and receiving.
- Remote control — Control over Ethernet or field cable with site and call separation for flexible deployment.
- Modular design — Simple structure, rectangular blind plug-in interfaces for module assembly and replacement.
- Encryption — AES-256 software encryption for voice and data plus support for a customized encryption board.
- Key erasing — Manual or automatic key erasure to prevent disclosure of secure information.
- Immersion — Manpack radio supports 4 hours of immersion under 2 metres of water.
Where it operates
- Sky wave long haul — Base station and manpack stations linked over long distance via ionospheric reflection.
- Ground wave short haul — Vehicle-mounted 125 W and operators manpack 20 W stations in the same area.
- Ship-based HF — Ship-based 125 W HF radio linked to shore base stations.
- Remote operation — Radios remotely controlled over Ethernet or field cable, separating sites and calls.