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ping Larry - AIS unit
Hi Larry,
I need your advice again I recently purchased a standalone Sitex AIS receiver - the little one that has a small screen and which receives its GPS input by NMEA from my Garmin. It has a small externally mounted piezo alarm - no ID markings that is simply too quiet to ensure that I am alerted or awakened if I drop off to sleep. I would like to replace it with a louder piezo unit and am of the vague understanding that as piezos draw little current that a louder and larger one will not burn out or otherwise 'stuff up' the AIS unit.. Is this correct? I have emailed Sitex with this question and had as yet no response. Also, at the moment I swap the masthead VHF aerial between the cockpit located VHF radio and the AIS unit. In the absence of a proper VHF splitter I reason that I won't need the AIS much in approaching ports and if I need to talk to a ship I have time to change over the aerials. As I have a chart table located VHF radio and the one in the cockpit I have a proper A-B switch (rather like the old printer A-B switches but more solid and metalic) at the chart table for the aerials. I cannot locate one of these any more. The only AIS splitter that Defender had is one that is specific for a Furono VHF radio and which cannot be easily adapted (by me at least) for other brand use. At US$149 I sent it back as they said if it didn't work to return it. Do you know of anywhere I can purchase/make either a mechanical A-B switch or an electronic automatic anntenna splitter? Thanks and cheers Peter BTW, I may be visiting Charleston later this year on my way back to Curacao as I am contemplating buying a Folbot and need to try a couple of them out. It is also a reasonable excuse to visit the heart of the South. |
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