Mail Archive Search: <+from:Thomas Giella>

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References: [ +from:Thomas: 325 ] [ Giella: 245 ]

Total 186 documents matching your query.

161. Topband: 2010 CQ 160 Meter CW Contest Propagation Forecast (score: 138): Author: "Thomas F. Giella NZ4O" <meteorologist@tampabay.rr.com>; Date: Thu, 28 Jan 2010 19:06:03 -0500; The NZ4O 2010 CQ 160 Meter CW Contest Propagation Forecast has been published at 0000 UTC on Friday 01/29/2009, valid 2200 UTC Friday 01/29/2010 through 2159 UTC Sunday 01/31/2009 at http://www.wcflu; /archives//html/Topband/2010-01/msg00239.html (8,140 bytes)
162. [CQ-Contest] 2010 CQ 160 Meter CW Contest Propagation Forecast (score: 138): Author: "Thomas F. Giella NZ4O" <nz4o@tampabay.rr.com>; Date: Thu, 28 Jan 2010 19:02:19 -0500; The NZ4O 2010 CQ 160 Meter CW Contest Propagation Forecast has been published at 0000 UTC on Friday 01/29/2009, valid 2200 UTC Friday 01/29/2010 through 2159 UTC Sunday 01/31/2009 at http://www.wcflu; /archives//html/Topband/2010-01/msg00240.html (8,566 bytes)
163. Topband: Long Delayed Echo's (score: 138): Author: "Thomas F. Giella NZ4O" <nz4o@tampabay.rr.com>; Date: Sun, 19 Sep 2010 11:05:09 -0400; http://www.wcflunatall.com/nz4o5.htm 19.) Long Delayed Echo (LDE)- A fairly common propagation mechanism by which an RF transmitted signal returns to the sender within 1.25-5 seconds and in rare cas; /archives//html/Topband/2010-09/msg00057.html (8,309 bytes)
164. Topband: KD9SV 160 Preamp & IC-756 Pro III (score: 138): Author: "Thomas F. Giella NZ4O" <nz4o@tampabay.rr.com>; Date: Wed, 22 Sep 2010 15:56:22 -0400; I have an KD9SV 160 meter receive antenna preamp that I want to use on an experimental beverage on ground. The question I have is will the remote antenna tuner socket of the Icom IC-756 Pro III safel; /archives//html/Topband/2010-09/msg00067.html (6,751 bytes)
165. Re: Topband: double L antenna (score: 138): Author: "Thomas F. Giella NZ4O" <nz4o@tampabay.rr.com>; Date: Wed, 29 Sep 2010 15:17:18 -0400; 160 & 80 Meter 1/4 Wave Fan Inverted L Antenna http://www.wcflunatall.com/nz4o16.htm 73 & GUD DX, Thomas F. Giella, NZ4O Lakeland, FL, USA nz4o@tampabay.rr.com NZ4O Amateur & SWL Autobiography: http:; /archives//html/Topband/2010-09/msg00107.html (7,744 bytes)
166. Re: Topband: Topband Coax Loop (score: 138): Author: "Thomas F. Giella NZ4O" <nz4o@tampabay.rr.com>; Date: Fri, 15 Oct 2010 15:39:07 -0400; Andy I've been using a coax receive loop on 160 meters for six years and I've had good success with it. I published a web page on the antenna at http://www.wcflunatall.com/nz4o14.htm . 73 & GUD DX, T; /archives//html/Topband/2010-10/msg00069.html (6,769 bytes)
167. [RTTY] Propagation Forecast Returns (score: 138): Author: "Thomas F. Giella NZ4O" <nz4o@tampabay.rr.com>; Date: Thu, 28 Oct 2010 13:51:45 -0400; An FYI, after a ten month hiatus due to personal illness I will begin producing my LF/MF/HF/6M radiowave propagation forecast again on Friday October 29, 2010. It will be at NZ4O Daily LF/MF/HF/6M Ra; /archives//html/Topband/2010-10/msg00133.html (7,697 bytes)
168. Topband: Propagation Webpage Link Error (score: 138): Author: "Thomas F. Giella NZ4O" <nz4o@tampabay.rr.com>; Date: Fri, 29 Oct 2010 13:09:42 -0400; Sorry folks I made an error in posting the domain name for my LF/MF/HF/6M Radiowave Propagation Forecast. It's at http://www.solarcycle24.org . 73 & GUD DX, Thomas F. Giella, NZ4O Lakeland, FL, USA n; /archives//html/Topband/2010-10/msg00137.html (7,026 bytes)
169. Re: Topband: 160 meter current-fed T antenna, where did I go wrong? (score: 138): Author: "Thomas F. Giella NZ4O" <nz4o@tampabay.rr.com>; Date: Fri, 12 Nov 2010 15:06:30 -0500; Mark my tee vertical design via the web page http://www.wcflunatall.com/nz4o9.htm was for a "voltage" fed electrical half wave tee tuned with a parallel network, not a 1/4 wave current fed tee tuned; /archives//html/Topband/2010-11/msg00060.html (8,771 bytes)
170. Topband: Propagation (score: 138): Author: "Thomas F. Giella NZ4O" <nz4o@tampabay.rr.com>; Date: Tue, 23 Nov 2010 15:09:33 -0500; Rick G4ILO has written a piece of propagation prediction software called VOAProp v1.1 It is actually an interface for the very accurate but otherwise difficult to use VOACAP software written for the; /archives//html/Topband/2010-11/msg00092.html (7,683 bytes)
171. Topband: Propagation (score: 138): Author: "Thomas F. Giella NZ4O" <nz4o@tampabay.rr.com>; Date: Wed, 24 Nov 2010 08:20:27 -0500; I have found that the 160 meter propagation forecast produced by VOACAP/VOAPROP is pretty accurate out to approximately 4000 miles. Having said that Carl K9LA is correct in that there is no accurate; /archives//html/Topband/2010-11/msg00097.html (8,034 bytes)
172. Topband: Eclipse (score: 138): Author: Thomas Giella <thomasfgiella@gmail.com>; Date: Wed, 30 Aug 2017 20:11:29 -0400; I did my solar eclipse observations on the AM broadcast band for the obvious reason that the broadcast signals were continuous. I did it the old fashioned way with direct real time observations usin; /archives//html/Topband/2017-08/msg00078.html (7,297 bytes)
173. Topband: 160 Meter Propagation (score: 130): Author: kn4lf@webtv.net (Thomas Giella); Date: Mon, 4 Dec 2000 10:32:16 -0500 (EST); There is the A index which is centered on Boulder, Co. and the Ap index which is a sum of many A index measurments taken simultaneously around the globe, including Boulder. It works in a similar way; /archives//html/Topband/2000-12/msg00036.html (9,773 bytes)
174. Topband: Balanced Line Radiation (score: 130): Author: kn4lf@webtv.net (Thomas Giella); Date: Mon, 13 Nov 2000 23:06:21 -0500 (EST); Thomas KN4LF Says: To clarify my previous statement, in "my" personal experience I've never been able to get current exactly balanced in twinlead, open wire line etc. to prevent radiation, even when; /archives//html/Topband/2000-11/msg00070.html (7,211 bytes)
175. Topband: 160 Meter Propagation (score: 130): Author: kn4lf@webtv.net (Thomas Giella); Date: Tue, 14 Nov 2000 13:12:19 -0500 (EST); Thomas KN4LF Says: I agree with Bob's comments. 160 meter propagation is complicated but can be explained in simpler terms. The bottom line is this: 160 meter propagated signals will ALWAYS seek the; /archives//html/Topband/2000-11/msg00076.html (7,555 bytes)
176. Topband: 160 Meter Propagation (score: 130): Author: kn4lf@webtv.net (Thomas Giella); Date: Tue, 14 Nov 2000 14:11:20 -0500 (EST); Thomas KN4LF Says: ????It's kind of like not seeing the forest for the trees. If 160 meter propagation does not follow the great circle route due to absorption through partial or total daytime stretc; /archives//html/Topband/2000-11/msg00078.html (8,062 bytes)
177. Topband: Re: [160M] Wide band noise (score: 130): Author: kn4lf@webtv.net (Thomas Giella); Date: Fri, 17 Nov 2000 10:52:09 -0500 (EST); Take Care, Thomas KN4LF -- FAQ on WWW: http://www.contesting.com/FAQ/topband Submissions: topband@contesting.com Administrative requests: topband-REQUEST@contesting.com Problems: owner-topband@contes; /archives//html/Topband/2000-11/msg00089.html (6,949 bytes)
178. Topband: JA Path (score: 130): Author: kn4lf@webtv.net (Thomas Giella); Date: Sun, 26 Nov 2000 06:24:22 -0500 (EST); Take Care, Thomas KN4LF -- FAQ on WWW: http://www.contesting.com/FAQ/topband Submissions: topband@contesting.com Administrative requests: topband-REQUEST@contesting.com Problems: owner-topband@contes; /archives//html/Topband/2000-11/msg00169.html (6,805 bytes)
179. Topband: 1/2 Wave L Antenna (score: 130): Author: kn4lf@webtv.net (Thomas Giella); Date: Thu, 5 Aug 1999 13:26:50 -0400 (EDT); --WebTV-Mail-28756-3186 Content-Type: Text/Plain; Charset=US-ASCII Content-Transfer-Encoding: 7Bit Per IK3UMT's Query, I'm currently using a 1/2 wave L antenna with very good results. With this anten; /archives//html/Topband/1999-08/msg00012.html (7,793 bytes)
180. Topband: Re: 1/2 L (score: 130): Author: kn4lf@webtv.net (Thomas Giella); Date: Fri, 6 Aug 1999 03:31:25 -0400 (EDT); --WebTV-Mail-26828-5296 Content-Type: Text/Plain; Charset=US-ASCII Content-Transfer-Encoding: 7Bit Hi Maurizio, No I did not measure the input impedance, the 10,000 ohm figure is a guess out of ON4UN; /archives//html/Topband/1999-08/msg00014.html (7,058 bytes)

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