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
>
>
>
>
> _______________________________________________
> AN Wireless Self Supporting Towers at discounted prices,
> See http://www.mscomputer.com
>
> Wireless Weather Stations now $349.95. Call Toll Free,
> 888-333-9041 for additional information.
> _______________________________________________
> Towertalk mailing list
> Towertalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
|