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.
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.).
- ・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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