Safety Flash
Potential interference of VHF-FM radio and AIS reception
Potential interference of VHF-FM radio and AIS reception
- IMCA
- Safety Flash
- IMCA SF 24/18
- Electrical SafetyMarine Operations
- Marine operations
- Navigation and positioning equipment
- Functional testing
- Marine industry
- Port and quaysideVessel
Summary
This flash summarises US Coast Guard reports of LED lighting interfering with shipboard VHF radio and AIS reception, including failed contact during a traffic separation scheme incident. It describes a possible interference test using a quiet radio channel, squelch adjustment and switching LED lights off and on.
Classifications: Marine operations; maritime operations.
Classifications: Navigation and positioning equipment; ECDIS; AIS; chart plotters.
Classifications: Functional testing; function test.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Port and quayside; quayside; harbour; harbor.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
LED lighting near VHF antennas caused radio-frequency interference that degraded vessel communications and AIS reception.
IMCA SF 24/18. Themes: electrical safety, marine operations.