> From: "PeterO" <rebyl_kayak_at_iprimus.com.au> ... > ...What happened to SSB, frequency hopping, spread spectrum or > digital modulation methods? Why can't these technologies and the requisite > frequencies be made available to the broader community? Regarding aerials a > 2 or 3 m extendable whip antenna with balun might be inefficient but should > still get more range than a VHF unit. I should think 1 to 10 miles would > satisfy most kayakers. It's possible and not expensive. There are many low-powered, low cost HF radios out there. MFJ will sell you a 20 Meter single band SSB radio for under $300. Add waterproof cases, a whip antenna, a small laptop and a free piece of software to generate PSK32 and you have a reliable long-range digital communications system. Might be a little hard to operate on the water, though. -- mike -------------------------- Michael Edelman http://foldingkayaks.org http://findascope.com *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Thu Jun 10 2004 - 07:30:30 PDT
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