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[Towertalk] Low dipoles

To: <towertalk@contesting.com>
Subject: [Towertalk] Low dipoles
From: rthorne@tcac.net (Richard Thorne)
Date: Mon, 4 Nov 2002 09:59:44 -0600
Pete:

I went through the same exercise last year.  I never felt loud on 80 or 40.
I had the C4XL for 40 at 70'.  I ended up with a sloping dipole on 75.  One
end tied to my 60' tower the other end pulled out towards the NE.  On 40 I
put up a delta loop with the bottom wire about 4 or 5 feet from the flat
roof top on my building.

75m's really improved (over the inverted V at 60').  When I called Tom,
N4KG, I heard him say boy he's loud.  Talk about the old chest sticking out
:-).

The 40m loop (fed in the middle of the bottom wire with a 1/4 wave matching
section of 75ohm coax) also played very well.

I think your on the right track, low antennas are the trick for SS.  Even a
tribander at 30 or 40 feet is better than 60 or 70'.  I always had a louder
signal on my C3 at 40' than the C4XL at 70'.

73, Rich - N5ZC

----- Original Message -----
From: "Pete Smith" <n4zr@contesting.com>
To: <towertalk@contesting.com>
Sent: Monday, November 04, 2002 9:42 AM
Subject: [Towertalk] Low dipoles


> At the last minute before SS, I put up a low dipole for 40m at about 30
> feet.  It worked great Sunday morning while the sun was up, but for most
of
> the rest of the time my 2-el yagi at 104 feet seemed as good or better,
> even on stations relatively close in.  It may be that the dipole was too
> close to my grounded guy wires.
>
> For next year I'm thinking of low dipoles for 40 and 80, a lot further
away
> from the guys.  Ideally I'd run them off the same feedline, and fan the
> ends of the 40m dipole a foot or so below the 80m one.  Any thoughts on
how
> that will work, and whether I'd be better off making them separate
antennas
> to optimize the height?  If so, what height is recommended for 40 and
> 80?  Is there a good compromise?
>
> 73, Pete N4ZR
> Sometimes a tower is just a tower
>
>
>
>
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