The directivity of a K9AY, if I understand the theory, drops as the skywave
angle increases. On the BCB I can completely null out one of two stations on
the same frequency as long as one of them is more or less in line with one of
the primary directions and the other is more than 90 degrees from that.
Al
AB2ZY
From: Kim Elmore <cw_de_n5op@sbcglobal.net>
Sent: Tuesday, April 13, 2021 1:31 PM
To: Robie Elms <ruler55@gmail.com>
Cc: Al Kozakiewicz <akozak@hourglass.com>; Dale M. Schwartz
<dale@immlawfirm.com>; towertalk@contesting.com
Subject: Re: [TowerTalk] 160 RECEIVE ANTENNAS
I use K9AY loops for 80 and 160. They are definitely not equal to Beverages,
but they help a fair bit.
Kim N5OP
"People that make music together cannot be enemies, at least as long as the
music lasts." -- Paul Hindemith
On Apr 13, 2021, at 11:55 AM, Robie Elms <ruler55@gmail.com> wrote:
I also use a pair (at 90 degrees) of K9AY loops and a preamp. Works much
better than my transmit vertical much of the time. An inexpensive way to start
with RX antennas.
Robie - AJ4F
On Apr 13, 2021, at 11:45, Al Kozakiewicz <akozak@hourglass.com> wrote:
K9AY? It isn't as good as a beverage, but it takes up 5% of the space yet is
still pretty darn good.
Al
AB2ZY
-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Dale M. Schwartz
Sent: Tuesday, April 13, 2021 12:26 PM
To: towertalk@contesting.com
Subject: [TowerTalk] 160 RECEIVE ANTENNAS
I am installing a shunt feed to my tower for 160 transmitting. Interested in a
160 receive system.
Looking at DX Engineering 4-Square system. Our lot is in the woods and not
that large. Any advice on this or other systems would be appreciated.
Dale/K4ROZ
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