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1. Re: Topband: Deep earth rod vs radials - FS measurement beyond the nearfield zone (score: 1): Author: "Guy Olinger, K2AV" <olinger@bellsouth.net>; Date: Thu, 19 Mar 2009 10:19:59 -0400; This is a real quandary of ham radio MF use vs AM MF broadcast use where broadcasters are obliged to maintain field strength and patterns as measured (conveniently) at the ground level. Validating p; /archives//html/Topband/2009-03/msg00057.html (10,355 bytes)
2. Re: Topband: Deep earth rod vs radials - FS measurement beyond the nearfield zone (score: 1): Author: "K9AY" <k9ay@k9ay.com>; Date: Thu, 19 Mar 2009 09:35:43 -0500; Antennas are reciprocal, so an external signal source might provide the solution. A small battery-powered signal source could easily be raised by a baloon. Its antenna could be a short vertical that; /archives//html/Topband/2009-03/msg00059.html (8,207 bytes)

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