Topband
[Top] [All Lists]

Re: Topband: making a bev seem longer

To: Mike Waters <mikewate@gmail.com>
Subject: Re: Topband: making a bev seem longer
From: Cecil Acuff <chacuff@cableone.net>
Date: Tue, 7 Aug 2018 18:38:14 -0500
List-post: <mailto:topband@contesting.com>
Don’t have that much room. My available space is about 150’ x 250’ with the 
tower in middle of it. House separates that area from the front yard which is 
150’ x 150’. Had the K9AY in the front yard, also tried the SAL-30 there. Very 
directional but couldn’t hear Europe any better than on the L. Tried a BOG but 
it may have been too long. Probably 300-350’ It went across the top of my 
radial field for the tower/L. (And into half of the neighbors front yard) 
Pointed towards EU....completely deaf compared to the L.

Haven’t given up hope...

Cecil
K5DL



> On Aug 7, 2018, at 6:06 PM, Mike Waters <mikewate@gmail.com> wrote:
> 
> I also live in a very quiet location. But put up a directional one-wavelength 
> Beverage pointed at Europe, Asia, Oceana, or Africa, and you'll see how much 
> noise that you really have! :-)
> 
> 73, Mike
> www.w0btu.com
> Please see my Beverage antenna information there
> 
>> On Tue, Aug 7, 2018, 5:53 PM chacuff <chacuff@cableone.net> wrote:
>> I don't have problems with noise...which may be why RX antennas don't 
>> perform a whole lot better than my TX antenna. I wouldn't say it's extremely 
>> quiet but it's not excessively noisy.  Hope to play more with antennas this 
>> fall and winter.
>> 
>> Cecil
>> 
>> -------- Original message --------
>> From: Mike Waters <mikewate@gmail.com> 
>> Date: 8/7/18 4:58 PM (GMT-06:00) 
>> To: Phil Duff <na4m@suddenlink.net> 
>> Cc: topband <topband@contesting.com> 
>> Subject: Re: Topband: making a bev seem longer 
>> 
>> A loop such as that has a very narrow null at very low angles, and
>> therefore it's usually not very effective for anything except for local RFI
>> or another local ham. For power line or nearby QRN, it's useful. But that's
>> about it. There are much better RX antennas.
>> 
>> 73, Mike
>> www.w0btu.com
>> 
>> On Mon, Aug 6, 2018, 7:37 PM Phil Duff <na4m@suddenlink.net> wrote:
>> 
>> > > On Aug 6, 2018, at 7:06 PM, Cecil Acuff <chacuff@cableone.net> wrote:
>> > >  Wish I could find an effective RX antenna that showed a great s/n
>> > improvement over the L.
>> >
>> > Look into a magnetic loop such as the design by N6RK as described in a
>> > past NCJ:
>> >
>> > http://www.n6rk.com/loopantennas/NCJ_loop_antenna_N6RK.pdf
>> >
>> > I use one on 160/80 and find it effective at improving the S/N ratio over
>> > my vertically polarized 160m and 80m transmit antennas.
>> >
>> >
>> > de Phil NA4M
>> 
_________________
Topband Reflector Archives - http://www.contesting.com/_topband
<Prev in Thread] Current Thread [Next in Thread>