Accessories - AS0094500 GNSS Surge Protector

Summary Information


Protects the GNSS receivers from surges and transients.

Full Description


Download installation instructions.

GNSS receivers are very sensitive devices and are vulnerable to a phenomenon known as voltage surges and electrical transients. Sources of electrical surges are numerous. The most common is a nearby lightning strike, which affects nearby lines through induction. Industrial transients are also significant because they are man made disturbances caused by switching and commuting of electrical motors. The operation of such devices can cause abrupt shifts in the ground potential that can generate a current flow through a nearby cable in order to equalize the ground potential.

Surge Protector Electrical Characteristics

  • Designed for GNSS Protection
  • Frequency Range: DC - 2.150 GHz
  • Allows the passage of antenna energizing voltage: 5 Vdc
  • Multi-stage circuitry using heavy duty gas tube
  • Response time: 5 ns
  • Current Suppression: 750 A (2x10 µs)
  • Insertion Loss: 1 dB maximum
  • Return Loss (1 GHz / 1.5 GHz): 16 dB minimum
  • Firing Voltage: 90 Volts
  • RFI Shielding: 120 dB

 

Usage

Place the AS0094500 between the antenna and the GNSS receiver, near a ground point with a short ground run. AS0094500 has two threaded studs with nuts to attach a ground cable to the surge protector, and two type F connectors for input from antenna and output to GNSS clock.

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