GNSS repeater kit for all L-Band signals
Available mid Feb 2025

GNSS repeater technical data

This kit includes a GNSS full L-band repeater unit with a GPS L1 antenna.

The repeater unit provides a coverage area of 35-40 meters diameter, when mounted at a height of 10 metres.

The repeater has a built-in antenna that radiates signal in a hemispherical-shaped pattern within a 180 degree angle of view.

Using the four moulded lugs, it can be mounted horizontally, for example on a ceiling, or vertically on a wall.

All that is required is good line-of-sight between the repeater unit and the receiving devices.

The external antenna feeder cable connects to an TNC socket; the repeater sends 5V DC through the coaxial cable to power the low noise amplifier (LNA) in the antenna.

If a larger area of coverage is required, additional repeaters can be added.

A single outdoor antenna can supply a signal to a number of repeaters by use of a GPS signal splitter and line amplifier.

More details on the custom-designed system page.

Technical Details

• Frequency:
  GPS L1/L2/L5
  Galileo E1/E5/E6
  GLONASS G1/G2/G3
  Beidou B1/B2/B3
• Size: 220 x 121 x 63 mm
• Weight: 563g
• Adjustable signal gain: 9-40 dB
• Antenna connector impedance: 50 Ohms
• Input connector: TNC socket
• Operating temperature: -25 to +55°C
• DC supply voltage: 12V DC
• Device current draw: 300 mA max
• Indoor range: 35-40m, adjustable by gain control
• Antenna connector power output: +5VDC, 100mA
• Ingress protection: IP67

GPS antenna

The antenna supplied with the full L-Band repeater kit is the Tallysman (now Calian) TW3990.

TW3990 is an active antenna with an internal low-noise amplifier (LNA) that inserts 37dB signal gain.

The LNA boosts the received signal before it travels down the coaxial cable to the repeater input.

A 5V DC power source for the LNA is provided by the repeater through the coaxial cable.

The supplied universal mount and cable guide allows the antenna to be mounted on a vertical, horizontal or sloping surface.

See the repeater installation guide for full details.

Order Codes

FGPS-RP-L-Band-10 – repeater kit for all L-band signals, 10m cable

FGPS-RP-L-Band-20 – repeater kit for all L-band signals, 20m cable

FGPS-RP-L-Band-30 – repeater kit for all L-band signals, 30m cable

Extend cable length by upgrading cable specification and/or using an in-line amplifier

FGPS-RP-L-Band-xx, where

FGPS = FalTech GPS
RP = repeater package
L-Band = supported GNSS signals
XX = cable length (meters)

Coaxial Cable

The cable supplied with a repeater kit is RF240 low-loss coaxial, with an overall outer diameter of 6mm.

It is pre-cut and terminated with TNC connectors both ends to attach to the antenna and the repeater.

It is offered in lengths of 10m, 20m and 30m, which means that most “standard” requirements are covered.

RF240 can extend to approximately 45m without any detrimental effect on signal strength or quality.

For longer distances the cable can be upgrade to RF400, which is similar in construction to RF240 with an overall outer diameter of 10mm.

Extend distances further by using GNSS amplifiers and GPS over fibre where necessary.