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Re: [TowerTalk] Circularly Polarized Receive Antenna

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Circularly Polarized Receive Antenna
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Sun, 17 Aug 2025 13:34:56 -0700
List-post: <mailto:towertalk@contesting.com>
On 8/17/2025 1:11 PM, Jim Lux wrote:
I’m not sure the RSPduo actually allows synchronized samples.

The DX Engineering NCC-1 and NCC-2 are excellent phasing boxes for use on 80M and below. I'm using one with a pair of VE3DO loops spaced 5/8 wave on 160M, with feedlines of approximately equal length. Measured complex responses for 160, 80, 40, 20, and 10M are in http://k9yc.com/VE3DO.pdf The unit is quite well-behaved at 40M and below.

73, Jim K9YC

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