Aesthetics, yes. Cost? Gulp! https://advancedhfsolutions.com/ <https://advancedhfsolutions.com/>
Mike, N8TTR > On Jun 9, 2020, at 6:32 PM, W2xj <[email protected]> wrote: > > aesthetics? > > Sent from my iPad > >> On Jun 9, 2020, at 6:14 PM, Barry <[email protected]> wrote: >> >> Full size verticals are hard to do on small power boats. And elevated >> grounds are also hard. Water grounds are usually the most practical, but >> fresh water is not great. I counsel inverted Vs as they are ground >> independent. On power boats that too is a tough trick, but it can be done, >> depending on size of the boat. A 40 meter dipole can be made by bending the >> ends and can be fed with coax through a 4:1 current balun if the run to the >> radio is not too great. It will require a fiberglass mast bracketed to the >> fly bridge. There are several suppliers of good, strong push up masts >> available; I wouldn't go more than about 25 feet which should put the feed >> about 31 or so feet over the water,m close to a 1/4 wave on 40. This >> arrangement will allow all band operation above 40 with a K3 as the tuner is >> just plain magic. >> >> 73, >> Barry >> K3NDM >> >> ------ Original Message ------ >> From: "Robert Sands" <[email protected]> >> To: "Frank C Richards" <[email protected]> >> Cc: "Elecraft Discussion List" <[email protected]> >> Sent: 6/9/2020 3:22:27 PM >> Subject: Re: [Elecraft] K3 on motorboat. >> >>> Verticals require more attention to ground but the goal should be to >>> increase the antenna current, thus increasing radiated signal. ground into >>> water seems like a waste but has DC grounding value. I use hung vertical >>> dipoles (20 and 15) with no need for ground and they work amazingly well. I >>> have tried letting wire or zinc ribbon strips drop into saltwater to >>> ground verticals and there is no value I can detect over something simpler, >>> like tying to existing structures or running a above water wire >>> counterpoise. Vertical dipoles require no Rf ground and propagate at low >>> angle and high efficiency. Far effects over water are what counts, more >>> than grounding, except in verticals to get higher antenna current. >>> K7VO >>> >>>> On Tue, Jun 9, 2020 at 7:38 AM Frank C Richards <[email protected]> wrote: >>>> >>>> Having been in the marine electronics business I was able to successfully >>>> install many HF radios on boats from large steel commercial fishing boats >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
