[Elecraft] K3 0n motorboat

[W2xj]

again, check with the wife.

Sent from my iPad

> On Jun 9, 2020, at 11:39 PM, Frank C Richards <prpntfmr at gmail.com> wrote:
> 
> I used the wrong terminology when I was speaking about antenna system
> grounding on a boat. What I actually meant was a counterpoise system.
> I agree that a vertical dipole works well but would be difficult to install
> permanently
> on a small boat. A vertical is most often used with a tuner. There are
> standard mounts
> and they are pretty easy to install and are sturdy and well suited for
> marine use.
> I also agree that all structures should be bonded to the counterpoise
> system.
> Some of the boat builders(Hatteras ,Bertram .etc) would put copper screen
> into
> the fiberglass layups of the flying bridge decks and roofs with a stud
> connected
> to it so that it could be tied into the system.
> On commercial trawlers the antenna would be mounted on the mast about 30 or
> 35 ft above the water.It was fed with a wire about 25 or 30 ft long so it
> was
> actually a 55 or 60 ft end-fed.
> With the outriggers lowered and acting as radials, the trawl doors and
> cables in the
> water and everything else bonded together, it is a pretty good counterpoise
> system.
> 
> 73, Frank KB4VU
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