check with his wife. Sent from my iPad
> On Jun 9, 2020, at 6:44 PM, Barry <[email protected]> wrote: > > This will look like the 23' HF whip used by boaters and the wire can be > barely seen. I can't see how this would look much worse than what boaters > already do for HF except this will be ground independent. > > ------ Original Message ------ > From: "W2xj" <[email protected]> > To: "Barry" <[email protected]> > Cc: "Robert Sands" <[email protected]>; "Frank C Richards" > <[email protected]>; "Elecraft Discussion List" <[email protected]> > Sent: 6/9/2020 6:32:08 PM > Subject: Re: [Elecraft] K3 on motorboat. > >> 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 >>> >> > > > -- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > ______________________________________________________________ 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]
