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bsi ISO 9001



FORAX tactical solutions are packaged for rugged field environments
(Line of Sight for 1 Channel)

FORAX-LS provides a long fiber optic connection between almost any communications radio and its antenna. FORAX-LS supports all current VHF, UHF, and L-Band waveforms from 30 to 512MHz, including UHF DAMA MILSATCOM. FORAX-LS's fiber optic connection affords tremendous flexibility in antenna location plus electrical isolation for the user's radios. The antenna can be located up to 10 km away while the radio remains conveniently nearby, enhancing the physical security of both the radio and its user. A FORAX-LS system consists of a Radio Interface Unit (RIU) connected by a single User-supplied optical fiber to a distant Antenna Interface Unit (AIU). Each AIU link provides 2W transmit power across the full 30-512 MHz band to drive a user-supplied RF power amplifier, if necessary. FORAX-LS operates with both 24 Vdc, for convenience in the field, and "universal" AC power.

» Download FORAX-LS Data Sheet

Example FORAX-LS Application


(50W VHF for 4 Radios)

FORAX-4VHF connects four VHF (30-88 MHz) radios to their antennas using a single optical fiber. A FORAX-4VHF system consists of a Radio Interface Unit (RIU) connected by a single User-supplied optical fiber to a distant Antenna Interface Unit (AIU). Developed for use with in the field, FORAX-4VHF has this robust feature set:

  • Delivers up to 50W TX power at each antenna interface.
  • Transmits with a 100% duty cycle.
  • Survives up to 50W Transmit (TX) power at the radio interface.
  • Auto-tunes RF filters suitable for 40 dB of antenna-to-antenna isolation.
  • Uses one optical fiber to connect four radios to four antennas.
  • Operates from DC generator power.

Optionally, the system can add these features:

  • Commands the tuning of the RF filters via a serial interface in the RIU.
  • Operates with improved selectivity and full RF performance with only 20 dB of antenna-to-antenna isolation.

» Download FORAX-4VHF Data Sheet

RIU, showing Serial Interface option





(Fiber Optic Remote Antenna eXtension — Wide Area Linear Link)

  • Provides > 900 sq. miles of LMR and private LTE communications to user
  • Detects “foreign” cellular devices; protective/preventative measures can be implemented
  • Needs user LMR radio(s) only at the Base Node
  • Integrates with existing user radio system or operates independently 
  • Installs using rugged, tamper-proof IP67 sealed enclosures and a single optical fiber
  • Supplies TCP/IP connectivity between all nodes

FORAX-WALL extends radio and cellular communications along a linear structure up to 90 miles (145 km) long, providing more than 900 square miles of Land Mobile Radio (LMR) and private LTE cellular communications.

User’s radios and registered cellular telephones operate throughout the entire system via radio base stations at the Base Node. “Foreign” cellular devices can be detected and protective / preventative actions implemented.

Each Base Node supports six additional Antenna Nodes spaced up to 14 miles (22.5 km) apart. The U.S. southern border can be equipped with radio and private LTE communications (plus cellular device detection) with 20± FORAX-WALL systems; the 4,000-mile northern border can be covered with 50-60 systems.
Users have these capabilities:

  • Wide-area radio communications — Delivers line-of-sight communications for P25 radio systems (or any other LMR system) out to 5 miles on either side of the FORAX-WALL system.
  • Wide-area LTE cellular communications — Delivers private cellular network communications to registered mobile telephones; can detect “foreign” cellular devices, with options for protective/preventative actions; provides Gigabit TCP/IP networking between nodes; offers optional redundant fail-over fiber architecture.

FORAX-WALL is evolved from existing equipment deployed by the U.S. military and industrial users. Deliveries can begin 10 mo. after receipt of order.

» Download FORAX-Wall Executive Summary