[Antennas] horizontal loop

Thu Mar 1 20:27:17 EST 2007

The loops are basically 1/2wave dipoles bent into a circle or square....then gamma matched (with the center of the dipole being grounded). There are lots of plans for halos, loops, etc but the basic design is the same. Stacking can achieve 3db gain omni when the number of elements are doubled. QST had a design on 430MHz loops just recently...the design for 2mtrs can be made by scaling up everything by 3x.
Chris
WB5ITT
-----Original Message-----
>From: G B <microsys at alltel.net>
>Sent: Mar 1, 2007 12:24 PM
>To: Antennas <antennas at mailman.qth.net>
>Subject: [Antennas] horizontal loop
>>Does anyone know of construction plans to build a
>2M and 70cm horizontal loop combo? I saw KU4AB's antennas, but I always
>make my own antennas. I am unfamiliar with this style omni loop, and see
>that it may be beneficial when used in combo with a highly directional
>array.
>>My 2M is 14.5dbd and the 70cm is around 20dbd, and neither receives well off
>the
>sides, as they should.
>>Thanks,
>>Glen K4KV
>>