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Testing for Interference from LED Lights

LED lighting from sources such as navigation lights, searchlights, floodlights, interior and exterior lights, and adornments can interfere with your Garmin AIS™ 800 device. Radio interference can cause poor reception, jam radio signals, and create a safety hazard in emergency situations. You should test for LED interference before mounting the VHF antenna.

NOTICE

If your LED lights interfere with the Garmin AIS 800 device, you must mount the VHF antenna farther away from the LED lights, or use non-jamming lights.

  1. Turn off all LED lights.
  2. Turn on your chartplotter and Garmin AIS 800 device.
  3. Observe the moving AIS targets on the chartplotter screen for at least one minute.
  4. Turn on all LED lights.
  5. Observe the moving AIS targets on the chartplotter screen for at least one minute.

    If most of the moving AIS targets disappear from the screen, the LED lights interfere with the Garmin AIS 800 device reception.

GUID-61A42529-ECEC-4B79-9F77-A5D87D90A579 v8
December 2025
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