Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+4\s+Square\s+Receiving\s+at\s+3V8SF\s*$/>

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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+4\s+Square\s+Receiving\s+at\s+3V8SF\s*$/: 5 ]

Total 5 documents matching your query.

1. Topband: 4 Square Receiving at 3V8SF (score: 1): Author: "Ashraf Chaabane" <ash.kf5eyy@gmail.com>; Date: Sat, 02 Mar 2019 10:45:51 +0000; Hi guys, I built a 4 Square Receiving Array for 160m at 3V8SF. I put details in my website: http://kf5eyy.info/topband.htm The achieved F/B so far is 20 db and the F/S is 19 db. There is still room f; /archives//html/Topband/2019-03/msg00003.html (7,162 bytes)
2. Re: Topband: 4 Square Receiving at 3V8SF (score: 1): Author: "Ashraf Chaabane" <ash.kf5eyy@gmail.com>; Date: Sat, 02 Mar 2019 10:56:49 +0000; Clive, The vertical is 130m away from the array center. I'm presuming this is a good distance to avoid interaction. 73 Ash 3V8SF Ash model in also your TX antenna and see whether you need to isolate; /archives//html/Topband/2019-03/msg00004.html (9,009 bytes)
3. Re: Topband: 4 Square Receiving at 3V8SF (score: 1): Author: "Clive GM3POI" <clive@gm3poi.com>; Date: Sat, 02 Mar 2019 06:03:12 -0500; Ash model in also your TX antenna and see whether you need to isolate that vertical on RX with a relay. 73 Clive GM3POI Hi guys, I built a 4 Square Receiving Array for 160m at 3V8SF. I put details in; /archives//html/Topband/2019-03/msg00005.html (8,101 bytes)
4. Re: Topband: 4 Square Receiving at 3V8SF (score: 1): Author: "Joe Subich, W4TV" <lists@subich.com>; Date: Sat, 2 Mar 2019 09:06:14 -0500; Ash, at less than 1 wavelength the TX antenna is still within the near field and can most certainly impact the receiving array. The real questions are how much does it impact the shortened verticals; /archives//html/Topband/2019-03/msg00007.html (9,702 bytes)
5. Re: Topband: 4 Square Receiving at 3V8SF (score: 1): Author: "Ashraf Chaabane" <ash.kf5eyy@gmail.com>; Date: Sat, 02 Mar 2019 15:52:43 +0000; Thanks Clive! I did a F/B test towards the TX ant and the F/B is indeed 5 db less. I may need to think of that solution. 73 Ash 3V8SF Ash, model it when the RX antenna is pointing at the TX antenna.; /archives//html/Topband/2019-03/msg00009.html (10,535 bytes)

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