After some discussion, I was discouraged from trying a Hi Z or 4 Square.
Based on theoretical considerations, a 4 element square array of Hi Z elements should be generally equivalent to a SALA of the same "footprint". Both are effectively three element endfire arrays. The SALA will have a bit more high angle response due to the sloping wires while the Hi Z "4 square" will have a bit poorer broadside rejection due to the spread "center" element. 73, ... Joe, W4TV On 2014-11-23 8:52 AM, Dale Parfitt wrote:
Hi Doug, I have talked with several hams using the K9AY. Apparently it is somewhat ground dependent, and thus results are all over the board. I don't have any level ground here in the mountains. After some discussion, I was discouraged from trying a Hi Z or 4 Square. My Beverages work wonderfully, but they are in the woods and tree limbs are constantly bringing them down. I have a rotatable Flag antenna but I must say, so far the SALA is almost as good as the Beverages and a lot better than the Flag. Dale W4OP ----- Original Message ----- From: "Doug Turnbull" <[email protected]> To: "'Dale Parfitt'" <[email protected]>; "'Phil & Debbie'" <[email protected]>; <[email protected]> Sent: Sunday, November 23, 2014 4:53 AM Subject: RE: [Elecraft] RX AntennasDale, Have you any idea how the Shared Apex Loop Array compares with the K9AY or Hi-Z 4 Square RX antennas? 73 Doug EI2CN -----Original Message----- From: Elecraft [mailto:[email protected]] On Behalf Of Dale Parfitt Sent: 23 November 2014 00:20 To: Phil & Debbie; [email protected] Subject: [Elecraft] RX Antennas While on the subject of RX antennas: I have been working with my Shared Apex Loop Array= SALA: http://www.arraysolutions.com/Products/sal_array.htm I have the 20' version. While I am not yet finished optimizing, I am quite pleased. The array appears to work about like my 400' Beverages, but takes up only a 40X40' square. On the AM band, I can be aiming NE towards Asheville NC and receiving that station. By hitting the flip switch or rotating to SW, an Atlanta station comes in. F/B is best on low angle arrival stations. Worth looking into. Dale W4OP ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
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