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製品情報

Base technology: radio-over-fiber (RoF) technology

This technology enables radio waves to be transmitted across long distances in their original form by sending them inside an optical fiber.

RoF

Distinctive features

  • ・Low transmission loss (0.2 dB/km) because it is not dependent on frequency
  • ・Transmission line is not affected by noise (lighting/noise resistant)
  • ・RF signals are transmitted in their original form (low latency / performance not affected by signaling system)

We can do custom orders tailored to your needs, so do not hesitate to contact us if you have any questions.


GNSS optical transmission unit New
(RF over Fiber Unit for GNSS)

Extends GPS signals through optical transmission

Coverts GPS signals to optical signals (used for time synchronization, etc.).

GNSS optical transmission unit
  • ・Can transmit all signals in the frequency range of 1-2 GHz (GPS/QZSS/GLONASS/BeiDou/Galileo, etc.)
  • ・No need to install coaxial cables as the existing fiber optic network is used
  • ・GNSS signals can be sent underground or through tunnels for long distance transmission
  • ・Includes a power supply function for the GNSS antenna
  • ・Equipped with a DC cut-off function on the Rx side
  • ・Lightning resistant because the fiber optic cables are isolated
  • ・Optical fiber branching allows reception at multiple points
  • ・Coaxial branching is possible after the optical/GNSS conversion
Item Performance and functions Remarks
Transmission frequency 1~2GHz GPS,QZSS,GLONASS,
BeiDou,Galileo
Power supply AC adapter (lockable) Electric power consumption: 5 W or less
RF input/output connectors BNC-J 50Ω
Optical input/output connectors SC/PC Optical fiber: general-purpose SM fiber
Input voltage AC100~240V AC adapter included
Electric power consumption Tx:5W max Rx:2W max
External dimensions 130×86×39(mm) Dimensions exclude protrusions such as connectors. Non-waterproof.
Operating temperature range -20~60℃ Including AC adapter
Functions Gain control Transmission loss / branching loss compensation
Antenna power supply 5V/50mA
DC cut-off Pressure resistance: 50V
Optical fiber monitoring Alarm if optical transmission loss reaches 20 dB or more

Application examples: optical extension of GPS, multi-branching, duplication
 GPS (GNSS) signal reception in office buildings

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Inquiry by telephone:+81-47-388-6197
(Electric field products - Sales manager)
Mon~Fri 8:30~17:30

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