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Can a VHF antenna be used for AIS or an AIS antenna used for VHF?
Solution

VHF and AIS are NOT interchangeable. The AIS frequency is slightly higher than VHF and also requires a low SWR rating of 1.5:1 across the entire frequency of 156-162 MHz. VHF will have a greater than 2:1 SWR rating at these frequencies and is not usable for AIS. AIS frequencies do not cover the lower VHF frequency range. An AIS antenna should not be used for VHF.


Article Details
Article ID: 30
Created On: 16 Oct 2006 09:39 PM