Easy explanation as to how NAV01ISO is installed and operates.
This device allows you to hear your VHF Radio via the original Audio Speakers - thus eliminating the need to add another external extension VHF Speaker. It simply plugs inline on the audio (CD/radio/cassette player) loom and is then plugged into the "External Speaker" outlet of your fixed or hand held VHF radio. Once any voice commends are received over the VHF the "one" audio speaker will be muted and the VHF commends will be heard over this speaker.
Whilst this is happening the other three audio speakers will remain playing the audio radio source. If the audio source is not on (i.e. the CD/radio player is turned off) the interface will simply act as an external speaker devise. PLEASE SEE VHF SECTION UNDER "PRODUCTS" TO PURCHASE THIS INTERFACE.
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