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References: [ +from:KN4LF: 167 ]

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161. Topband: 3B9C Online Log Etc. (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Wed, 24 Mar 2004 15:01:41 -0000; I presume that most already have this online log website for 3B9C saved but just in case here it is. http://www.fsdxa.com/3b9c/online-logs.html . Last night I worked 3B9C on 3795/3790 kc phone and I; /archives//html/Topband/2004-03/msg00245.html (7,760 bytes)
162. Topband: 3B9C In Florida/ Receive Antennas (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Thu, 25 Mar 2004 15:19:43 -0000; I had the usual local QRN on the 160 tee vertical and even the low doublet last night. Very frustrating, especially in light of not having room for listening antennas. In any event I listened for 3B9; /archives//html/Topband/2004-03/msg00256.html (8,504 bytes)
163. Topband: 160 Listening Antennas (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Fri, 26 Mar 2004 14:26:14 -0000; I received MANY personal responses to my query concerning receiving antennas and their proximity to transmitting antennas. I received allot of valuable information and want to thank all who responded; /archives//html/Topband/2004-03/msg00275.html (7,365 bytes)
164. Topband: Antipodal Focusing Of RF Signals (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Mon, 29 Mar 2004 03:30:48 -0000; True antipodal focusing of transmitted RF signals does occur at HF frequencies. BUT as Bob Brown NM7M pointed out in an earlier post the ionosphere at medium frequencies is to heterogeneous to suppor; /archives//html/Topband/2004-03/msg00315.html (8,057 bytes)
165. Topband: MF Anti-Podal Propagation Enhancement (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Tue, 30 Mar 2004 00:06:06 -0000; Most of the propagation enhancement that we may mistake for antipodal focusing is actually via the E Valley/F Layer ducting mechanism. 73 & GUD DX, Thomas F. Giella, KN4LF Retired Space & Atmospheric; /archives//html/Topband/2004-03/msg00325.html (8,580 bytes)
166. Re: Topband: 160m Ant on 80m? (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Fri, 16 Apr 2004 14:11:21 -0000; It will certainly radiate and very efficiently BUT it will have a high takeoff angle of maximum radiation. I have a 160-10 meter horizontal doublet up at 40 feet and I flip a switch to make it a tee; /archives//html/Topband/2004-04/msg00114.html (8,150 bytes)
167. Topband: 160 Meter Propagation (score: 1): Author: "Thomas F. Giella KN4LF" <kn4lf@earthlink.net>; Date: Mon, 12 Jan 2009 13:49:42 -0500; Carl K9LA is correct in his assertion that change in height of the ionosphere in the equatorial region during solar minimum does not translate to a change in the height of the mid and high latitude i; /archives//html/Topband/2009-01/msg00104.html (8,441 bytes)

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