[Elecraft] The K2 and Random Antennas

[Lars Edwards]

Tom

I had some very good experience with a Hygain trap vertical (40-10m).  I had
it set up in a ground plane configuration with 4 radials per band.

The base of the antenna was no more than 20 ' high at most and  I had 4 sets
of "bundled radials" that I had staked out ~ every 90 degrees around the
antenna.  Each "bundle" had one radial cut for each band.  I also used guys
near the top that kept the antenna pretty stable in some high winds.

I actually operated with the antenna at heights as low as 10 -15 ft. and
still had reasonably good results.  All of this running from < 2watts to ~
10 watts.

I've been using a GAP Titan with the K2 and running ~ 10 watts max have
worked over 180 countries in the past year or less using this set up.

Lars

WB2ORD

----- Original Message ----- 
From: "tom.w3qs" <tom.w3qs at verizon.net>
To: <elecraft at mailman.qth.net>
Sent: Tuesday, June 14, 2005 4:24 PM
Subject: RE: [Elecraft] The K2 and Random Antennas


> Some interesting ideas, Stuart.  I may have to try them.  My two biggest
> problems, now,  are getting the RF out of the shack and feeding antenna
> anywhere other than at the end.  I am seriously thinking of getting a
> trapped vertical which would solve both problems.  I was trying to do this
> on the cheap, and guess that isn't a good idea.
>
> Anyone have any experience with the Hustler 6 band vertical?
>
> 73, Tom
>
> -----Original Message-----
> From: Stuart Rohre [mailto:rohre at arlut.utexas.edu]
> Sent: Tuesday, June 14, 2005 3:54 PM
> To: tom.w3qs
> Subject: Re: [Elecraft] The K2 and Random Antennas
>
> Tom,
> You can always find a way to run balanced line to a good center fed
doublet,
> (dipole).
>
> You can put it on electric fence 5 inch plastic standoffs across a wall or
> ceiling, then inside pvc conduit as you pass thru a wall.  Use Wireman's
300
> ohm ladder line, which is narrow.   An alternate way thru a wall is to
mount
> two "all threads" rods in shrink tubing on each; in  a pair of drilled
holes
> spaced about the spacing of your feeder.
>
> Use PVC conduit larger than the ladder line by a factor of 2X and space
the
> ladder line by cutting some foam spaces to slip over the line.  Make these
> circular and spaced every 18 inches.
>
> Twisting a ladder line also helps keep it equally spaced from unbalancing
> conductors, in that any coupling will be equally received by the parallel
> wires as they change direction in the twist.  The twist is every 18 inches
> or more at HF.
>
> 73,
> Stuart
> K5KVH
>
>
>
>
>
>
>
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