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Vesper External GPS Antenna - Out of stock - Alternative Available - Please enquire


The Vesper external GPS antenna for AIS transponders combines a high-performance GPS antenna and a low noise amplifier in to a state-of-the-art compact and fully waterproof enclosure.

This innovative antenna design has two mounting options; pole mount or base Mount. As well as being easy to mount it comes with a 10m (32.8 feet) cable.

Construction: Compact waterproof (IPx7) housing

Dimensions: 90mm (3 1/2") diameter x 118mm (4 2/3") high when used with base mount (as shown in the photo at the top of this page)

Mounting: Pole (standard 1" threaded mast) and base included


  • GPA861: 10 metre (32.8 ft) RG58 with TNC that connects directly to WatchMate 850
  • GPA901: 10 metre (32.8 ft) RG58 with SMA that connects directly to WatchMate Vision