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GPS amplifier +16dB

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

Signal gain is +16dB at the GPS L1 frequency band (1.575GHz); 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).


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: 1575.42 +/- 15MHz filtered
  • Impedance: 50Ω
  • Noise figure: <5dB
  • Gain: +16dB
  • Connector types: both TNC socket

Application example

Waterproof (IP67) 16dB GPS amplifier unit

IP67 Amplifier 400x300

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

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

Standard RG58 coaxial cable works well for distances of up to 30 metres from antenna to repeater; 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.

Using an amplifier to extend antenna cable range