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Total 8 documents matching your query.

1. [TowerTalk] New MF Broadcasting Array (score: 1): Author: <donovanf@starpower.net>; Date: Wed, 4 Jul 2007 09:30:38 -0400 (EDT); Lets hear some comments about this new MF broadcasting array: http://www.broadcast-transradio.com/Horizontal_Task_for_TRANSRADIO.pdf 73! Frank W3LPL _______________________________________________ __; /archives//html/Towertalk/2007-07/msg00187.html (7,087 bytes)
2. Re: [TowerTalk] New MF Broadcasting Array (score: 1): Author: "James C. Garland" <4cx250b@muohio.edu>; Date: Wed, 4 Jul 2007 07:46:48 -0600; It's a very cool design, especially the trick of using inductors to shunt the insulators at the base of the supporting towers in order to null ground radiation. It's interesting how high-angle skywav; /archives//html/Towertalk/2007-07/msg00188.html (7,871 bytes)
3. Re: [TowerTalk] New MF Broadcasting Array (score: 1): Author: Terry Conboy <n6ry@arrl.net>; Date: Wed, 04 Jul 2007 07:01:57 -0700; An interesting NVIS application with circular polarization. It's not clear why they used such "fat" conductors...it seems like they could get plenty of bandwidth for MF broadcasting with simple dipol; /archives//html/Towertalk/2007-07/msg00189.html (7,929 bytes)
4. Re: [TowerTalk] New MF Broadcasting Array (score: 1): Author: "Dave Hachadorian" <K6LL@ARRL.net>; Date: Wed, 4 Jul 2007 08:50:13 -0700; -- See also eight pages of pictures and info here: http://www.waniewski.de/id330.htm As near as I can tell, this array is used at night for religious broadcasting throughout central Europe at 300 kW; /archives//html/Towertalk/2007-07/msg00194.html (7,787 bytes)
5. Re: [TowerTalk] New MF Broadcasting Array (score: 1): Author: Gene Smar <ersmar@verizon.net>; Date: Wed, 04 Jul 2007 10:57:58 -0500 (CDT); Frank et al: The feedpoint arrangement reminds me of my crossed-dipole turnstile array I used for a bit during the 80's to listen to OSCARs on 2M. The two dipoles were fed from a common coax and conn; /archives//html/Towertalk/2007-07/msg00195.html (9,964 bytes)
6. Re: [TowerTalk] New MF Broadcasting Array (score: 1): Author: "Jim Miller WB5OXQ in Waco" <wb5oxq@grandecom.net>; Date: Wed, 4 Jul 2007 15:50:44 -0500; It seems that my research into the early days of radio broadcast showed that most stations used a simple variation of this antenna but with only 1 bi-directional dipole and sometimes a variable heigh; /archives//html/Towertalk/2007-07/msg00204.html (7,521 bytes)
7. Re: [TowerTalk] New MF Broadcasting Array (score: 1): Author: " Peter Forbes" <prforbes@bigpond.net.au>; Date: Thu, 5 Jul 2007 09:24:37 +1000; FWIW, If this station is operating on 1539 Khz, it is quite close to, but above the electron gyro frequency, which is around 1450 Khz in Europe. This brings into effect two issues: (!) the high absor; /archives//html/Towertalk/2007-07/msg00208.html (9,237 bytes)
8. Re: [TowerTalk] New MF Broadcasting Array (score: 1): Author: "Ethan Miller K8GU" <ethan@k8gu.com>; Date: Thu, 5 Jul 2007 10:11:51 -0500; Propagation expert I am not...but, I might have some answers...please forgive me if someone has already responded since I'm reading through the archives. I acknowledge a quick and insightful discussi; /archives//html/Towertalk/2007-07/msg00226.html (11,310 bytes)

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