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FORAX™ RF-over-Fiber Communications System
Syntonics’ Fiber Optic Remote Amplifier Extension (FORAX™) links radios to their antenna at distances up to 10 kilometers (75 km and more by special order). Instead of using heavy, short, power-consuming coaxial cables, one coax cable per radio, FORAX™ uses a single long, lightweight, and secure fiber optic cable to connect all the radios. For example:

Products

Communications Application   Radios Supported by FORAX™
HF SSB, ISB, AM, and Link-11 (serial tone modem 110A and ALE 141A)   PRC-150, MRC-148, USC-61, others
SINCGARS SIP/ESIP   PRC-77, PRC-117, PRC-119, PRC-148, PRC-152, PSC-5, RT-1439, RT-1523, USC-61, VRC-12, VRC-91, others
VHF AM civil and military aviation   ARC-164, PRC-117, PRC-148, PRC-150, PRC-152, PSC-5, USC-61, URC-200, others
VHF AM maritime including AIS   ARC-164, PRC-117, PRC-148, PRC-150, PRC-152, PSC-5, USC-61, URC-200, others
UHF AM civil and military aviation   ARC-164, GRC-171, PRC-117, PRC-148, PRC-150, PRC-152, PSC-5, USC-61, URC-200, others
VHF/UHF land mobile radio including P25   All conventional and trunked two-way radios including Motorola, M/A-COM, EFJohnson
VHF/UHF LOS (VULOS)   ARC-164, PRC-117, PRC-148, PRC-150, PRC-152, PSC-5, USC-61, URC-200, others
UHF DAMA TACSAT (181B, 182A, 183A)   ARC-234, LST-5, PRC-117F, PRC-148, PRC-152, PSC-5, USC-61, others
UHF Link-11, Link-4a   PRC-117, PRC-148, PRC-152, PSC-5, URC-200, USC-61, others
EPLRS   RT-1719, RT-1720, others
GPS   Any L1, L2 receiver; requires active antenna (can be supplied)
     
    FORAX-RM, the versatile “rack-mount” RF-over-fiber system
The FORAX-RM (rack-mount) modular system lets the user mix-and-match any number of FORAX™ RF-over-fiber links to equip a radio site with the ability to move its antennas up to 10 km away.

A FORAX-RM RF-over-fiber link consists of a radio interface module (RIM) and an Antenna Interface module (AIM). At the radio site, RIMs are mounted in a 19-inch rack-mount chassis and connected by short coaxial cables to each radio’s antenna port. At the antenna site, AIMs are mounted in a 19-inch rack-mount chassis and connected to each antenna with coaxial cables. Optionally, the AIU chassis can be housed in a weather-tight, lightning-hardened enclosure. Chassis are equipped with redundant hot-swappable "universal AC" power supplies.

» Download FORAX-RM Data Sheet PDF

» Download FORAX-RM Configuration Pictures PDF

     
    FORAX-SC2 — Two DAMA TACSAT radios to two remote antennas
FORAX-SC2  (satcom, 2 radios) connects one or two radios communicating via UHF tactical satellite (“DAMA TACSAT”) to distant antennas. FORAX-SC2 offers a high performance alternative to conventional radio-antenna coaxial cable connections, affording great flexibility in antenna location plus opto-isolation for all the User’s radios. Antennas can be located up to 10 km from the radios.  

» Download FORAX-SC2 Data Sheet PDF

     
    FORAX-RP8 — Seamless two-way and trunked radio coverage
FORAX-RP8  (repeater, 8 zones) connects VHF/UHF repeaters used in public safety or industrial radio system to distant RF “dead zones,” such as building basements, secure facilities, or tunnels, using fiber optic cables to transport the RF signals. Both conventional and trunked radios systems are supported. FORAX-RP8 offers a secure connection that takes advantage of your facility’s existing single mode optical fiber infrastructure. FORAX-RP8 eliminates roof penetrations and awkward, power-consuming coaxial cable runs to outdoor antennas. Coverage in RF dead zones is possible up to 10 km from the base station (longer by special order). Transmit power levels are tailored for your specific installation and filtering is tailored to your channel assignments. FORAX-RP8 systems can be ganged to cover 8, 16, or more “dead zones.”

» Download FORAX-RP8 Data Sheet PDF

     
    FORAX-LOS1 — One radio to one remote antenna
FORAX-LOS1 connects one radio operating in the 30-512 MHz band, including TACSAT, to one remote antenna. Most military waveforms in the 30-512 MHz band, including DAMA TACSAT, are supported by the link.

» Download FORAX-LOS1 Data Sheet PDF

     
    FORAX-LOS2 — One LOS radio and one TACSAT radio to remote antennas
FORAX-LOS2 connects one VHF/UHF Line-of-Sight (VULOS) radio operating in the 30-512 MHz band to a remote LOS antenna and one DAMA TACSAT radio to a remote TACSAT antenna. Most military waveforms in the 30-512 MHz band are supported by the VULOS link.
      » Download FORAX-LOS2 Data Sheet PDF
     
    FORAX-LOS4 — Four radios to four remote antennas
FORAX-LOS4 connects four DAMA TACSAT radios to remote antennas or connects three TACSAT radios plus one radio operating in the 30-512 MHz band to remote antennas. Most military waveforms in the 30-512 MHz band are supported by the VULOS link.

» Download FORAX-LOS4 Data Sheet PDF