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GPS amplifier +16dB

An in-line GPS amplifier that allows for longer cable runs between the outdoor GPS antenna and the indoor repeater unit(s).

Signal gain is +16dB across the GNSS band of 1200 to 1700 MHz; supporting GPS L1 and L2, GLONASS and Galileo simultaneously.

A built-in filter removes unwanted signals that may have entered the cable.

The amplifier requires a 5V DC power supply which is fed through the coaxial cable from the attached repeater unit; this DC voltage is also passed on to the outdoor GPS receiving antenna (or in some applications to another GPS line amplifier).

GPS amplifier for L1, L2, GLONASS, Galileo, 16dB gain

Technical Details

  • Size: 110 x 143 x 28mm
  • Weight: 135g
  • Operating temperature: -35 to +85°C
  • Power supply: powered through the coaxial cable from the GPS repeater
  • Frequency Range: 1200 to 1700 MHz
  • Impedance: 50Ω
  • Noise figure: <5dB
  • Gain: +16dB
  • Connector types: both TNC socket

Application example


Waterproof (IP67) 16dB GPS amplifier unit

GPS amplifier, 16dB gain, L1, L2, GLONASS, Galileo, IP67 enclosure

For environments where moisture and/or dust ingress is a problem, this IP67 version of the GPS amplifier is ideal.

The amplifier specification is exactly the same as the standard unit shown above, the only differences are as follows:

  • Size: 200 x 119 x 39mm
  • Weight: 240g
  • Enclosure: IP67
  • Input connector: TNC-socket
  • Output connector: TNC socket


Use cable with lower loss, or use an amplier, or both?

Standard RG58 coaxial cable works well for distances of up to approximately 25 metres from antenna to repeater when using an outdoor antenna with 35dB of signal gain; any longer than this and signal losses through attenuation become significant.

This situation can be overcome by using a cable with a better loss characteristic; generally the thicker the cable the less attenuation is experienced.

FalTech GPS can advise which cable type is most suitable for any situation – just call and let us “do the math”.

We know all the loss characteristics of a wide range of cable types and can calculate whether your situation can be solved simply by deploying low-loss cable, or by the addition of an amplifier, or both.


Using an amplifier to extend antenna cable range

amplifierschematic

The amplifier is often used in conjunction with a signal splitter to allow multiple GPS repeaters to share a single antenna.

GPS splitter 1:2
GPS splitter 1:5
GPS combined amplifier/splitter