GPS repeater kit for L1/GLONASS/Galileo

REPEATER FOR L1 / GLONASS / GALILEO / BeiDou

The L1 / GLONASS / Galileo / BeiDou repeater unit has an effective coverage area of 35 – 40 meters diameter, when mounted at a height of 10 meters.

The unit has a built-in antenna that radiates signal in a hemispherical pattern with 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 SMA 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 – all using a single outdoor antenna – by use of a GPS signal splitter and/or a line amplifier.

Specification

• Frequency:
  GPS L1   1.575 GHz
  Galileo E1   1.575GHz
  GLONASS G1   1.602 GHz
  Beidou B1   1.5611 GHz
• Size: 110 x 143 x 28mm
• Weight: 165g
• Overall signal gain: >40dB
• Noise Figure: < 2dB
• Variable attenuation: 0-40dB
• Antenna connector impedance: 50 ohms
• Input connector: SMA-socket
• Operating temperature: -25 to +40°C
• Power supply (included): 12VDC 1.6A max
• Indoor range: up to 50m, adjustable by gain control
• Antenna connector power output: +5VDC, 100mA
• TX antenna gain max: +4dBd, RHCP polarization
• Ingress protection: IP51

Two year warranty as standard on repeater and antenna hardware.

WATERPROOF (IP67) GPS L1/GLONASS/GALILEO/BEIDOU REPEATER UNIT

For environments where moisture and/or dust ingress is a problem, this IP67 version of the L1/GLONASS/Galileo repeater is ideal.

It is physically more robust than the IP51 version, which makes it a good option for more industrial locations.

The repeater specification is exactly the same as the standard (IP51) unit shown above, the only differences are as follows:

• Size: 200 x 89 x39mm
• Weight: 274g
• Input connector: TNC-socket
• Ingress protection: IP67

The repeater is usually supplied with standard (non-waterproof) AC/DC power supply if used in dry conditions. 

An IP67 waterproof power supply is available for high-moisture environments.

Power supply options

GPS repeater kit order codes

FGPS-RP-L1G1GA-10 – repeater kit for GPS L1, GLONASS, Galileo, BeiDou signals; IP51 repeater; standard, non-waterproof power supply; 10m cable

FGPS-RP-L1G1GA-20 – repeater kit for GPS L1, GLONASS, Galileo, BeiDou signals, IP51 repeater; standard, non-waterproof power supply; 20m cable

FGPS-RP-L1G1GA-30 – repeater kit for GPS L1, GLONASS, Galileo, BeiDou signals, IP51 repeater; standard, non-waterproof power supply; 30m cable

FGPS-RP-L1G1GA-10 (IP67) – repeater kit for GPS L1, GLONASS, Galileo, BeiDou signals; IP67 repeater; standard, non-waterproof power supply; 10m cable

FGPS-RP-L1G1GA-20 (IP67) – repeater kit for GPS L1, GLONASS, Galileo, BeiDou signals; IP67 repeater; standard, non-waterproof power supply; 20m cable

FGPS-RP-L1G1GA-30 (IP67) – repeater kit for GPS L1, GLONASS, Galileo, BeiDou signals; IP67 repeater; standard, non-waterproof power supply; 30m cable

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

FGPS-RP-L1G1GA-xx, where

FGPS = FalTech GPS
RP = repeater package
GPS L1, GLONASS, Galileo, BeiDou = supported signals
XX = cable length

GNSS/GPS signals explained

Coaxial cable used in GPS repeater kits

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 a TNC connector to attach to the antenna and an SMA connector to connect to 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 40m 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.

GPS antenna

The antenna supplied with the L1/GLONASS/Galileo repeater kit is the Tallysman TW3742.

The TW3742 is an active antenna with an internal low-noise amplifier (LNA) that inserts 40dB 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.

IP67 explained

The IP Code, known as the International Protection Marking, IEC standard 60529 (sometimes interpreted as Ingress Protection Marking) classifies and rates the degree of protection provided against the intrusion of solid particles (including body parts such as hands and fingers), and water by mechanical casings and electrical enclosures.

For example, IP67 is usually spoken as “I P sixty seven”.

In fact the two numbers represent the two aspects of the IP rating code, so strictly speaking should be said as “I P six seven”.

The first digit indicates the extent of solid particle protection and the second digit indicates the level of protection against harmful liquid ingress protection.

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For the non-waterproof IP51 devices:

The first digit 5 means that ingress of dust is not entirely prevented, but it must not enter in sufficient quantity to interfere with the satisfactory operation of the equipment.

The second digit 1 states that dripping water (vertically falling drops) shall have no harmful effect on the device when mounted in an upright position onto a turntable and rotated at 1 RPM.

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For the waterproof IP67 devices:

The first digit 6 indicates that the enclosure is dust tight – it will not allow any ingress of dust.

The second digit 7 indicates that the enclosure can be immersed in liquid to a depth of 1 meter.

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