GPS-over-fibre link system: extend antenna cable up to 10 km
Extend your GPS antenna-to-receiver distance up to 10 km and overcome the limitations of traditional coaxial cable systems.
Ideal for applications such as GNSS/GPS repeaters, GNSS receivers, and time synchronization equipment.
Why use GPS-over-Fibre?
For reliable GPS signal reception, outdoor antennas should ideally be installed at the highest point of a building. However, this can mean that a long coaxial cable is required, which can degrade signal quality due to:
- High attenuation over long distances
- Electromagnetic interference (EMI)
- Noise and distortion from in-line amplifiers
- Practical installation challenges: thick, heavy, and expensive low-loss coaxial cable
Extending GPS signals over fibre solves these issues and provides a clean, low-noise signal for long-distance transmission.
How it works
A GPS-over-fibre system converts the RF signal from the outdoor antenna into light pulses, sends it through a single-mode optical fibre, and then converts it back to RF for use by your GPS equipment.
Key components:
- RF-to-Optical (TX) Module
- Converts RF signals from the antenna into light pulses
- Supplies DC voltage to the antenna’s low-noise amplifier (LNA)
- Single-Mode Optical Fibre
- SC/APC connectors
- Carries the light signal up to 10 km with minimal loss
- Optical-to-RF (RX) Module
- Converts light pulses back to RF signals
- Presents the correct antenna load to the connected device, ensuring normal operation
- Compatible with GPS repeaters, receivers, and timing equipment
System features
System components
Standard link system contains:
- 1 x HRT-G1-8M-10-H1550; RF to optical TX unit
- 1 x HRR-G1-8M-60; optical to RF unit
- 2 x HPS-CB-3 international AC/DC power supply
Optional components
- Outdoor antenna with mounting bracket
- Coaxial cable; antenna -> optical TX
- Coaxial cable; optical RX -> end device
- Pre-cut and terminated fibre optic cable
