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121. Topband: Receiver Performance (score: 1): Author: kn4lf@webtv.net (Thomas Giella); Date: Sun, 30 Jan 2000 08:22:45 -0500 (EST); On the subject of receiver performance, my old FT-101EE hears weaker signals better on 160 meters (lower noise floor) then any PLL or DDS rig I've ever owned. Thomas Giella KN4LF Plant City, Fl. kn4l; /archives//html/Topband/2000-01/msg00252.html (6,981 bytes)
122. Topband: High Beverage noise (score: 1): Author: kn4lf@webtv.net (Thomas Giella); Date: Mon, 31 Jan 2000 13:32:17 -0500 (EST); Thomas KN4LF Says: One of my EWE antenna's run perpendicular to my electrical service entrance with a 10 foot spacing and the EWE still picks up extra noise from it, even though the power line is not; /archives//html/Topband/2000-01/msg00263.html (7,651 bytes)
123. Topband: L Antenna (score: 1): Author: kn4lf@webtv.net (Thomas Giella); Date: Sun, 19 Dec 1999 09:24:22 -0500 (EST); My 256 Foot L antenna has a vertical section of 65 feet. Through premeditated design the highest current point is at the 64 foot level on 1828 kc. The antenna has worked out very well for me. I have; /archives//html/Topband/1999-12/msg00202.html (6,578 bytes)
124. Topband: 1/2 Wave L Antenna (score: 1): 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)
125. Topband: Re: 1/2 L (score: 1): 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)
126. Topband: Close Calls With Lightning (score: 1): Author: kn4lf@webtv.net (Thomas Giella); Date: Mon, 7 Jun 1999 13:44:01 -0400 (EDT); --WebTV-Mail-139788300-7609 Content-Type: Text/Plain; Charset=ISO-8859-1 Content-Transfer-Encoding: Quoted-Printable I would like to submit this to the topband reflector. Let me start by giving you a; /archives//html/Topband/1999-06/msg00015.html (11,789 bytes)
127. Topband: EWE Antenna's (score: 1): Author: kn4lf@webtv.net (Thomas Giella); Date: Sat, 3 Apr 1999 11:23:45 -0500 (EST); A good source of information on the EWE antenna is the ARRL's QST magazine. See their February 1995 and January 1996 issues. I have done extensive experimentation with the EWE antenna, both on 160 me; /archives//html/Topband/1999-04/msg00015.html (7,399 bytes)
128. Topband: 160 Meter Drift Net Beacons (score: 1): Author: kn4lf@webtv.net (Thomas Giella); Date: Sun, 4 Apr 1999 12:39:41 -0400 (EDT); I was involved in various marine law enforcement duties for 10 years, while in the U.S.Coast Guard and have limited knowledge of the beacons. They are in fact drift net radio location beacons. They c; /archives//html/Topband/1999-04/msg00023.html (7,907 bytes)
129. TopBand: 160 Meter L Antenna (score: 1): Author: kn4lf@webtv.net (Thomas Giella); Date: Tue, 30 Mar 1999 15:15:23 -0500 (EST); --WebTV-Mail-873255625-5456 Content-Type: Text/Plain; Charset=US-ASCII Content-Transfer-Encoding: 7Bit This explanation of the antenna I'm using on 160 meters may be of interest to others on the refl; /archives//html/Topband/1999-03/msg00173.html (10,607 bytes)
130. Topband: Low Topband Dipole (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Fri, 22 Aug 2003 12:46:04 -0400; I worked my first 100 DXCC countries on 160 meters in two winters using 100 watts and a dipole at 35 feet from central Florida. It's the second 100 that require a good vertical and more power. 73, Th; /archives//html/Topband/2003-08/msg00118.html (6,938 bytes)
131. Topband: Re: Low Topband Dipole/Propagation Outlook (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Sat, 23 Aug 2003 10:09:06 -0400; Bryce KH6AT Asked: Why Thomas KN4LF Says: The first 100 DXCC entities comment was a generality, it could be the first 125 or so depending on your QTH. To answer why? At least from here in Central Flo; /archives//html/Topband/2003-08/msg00121.html (9,095 bytes)
132. Re: Topband: Radial Plate (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Sat, 23 Aug 2003 17:16:45 -0400; Dick W4NTG Asked: Who makes a good radial plate...I have found one that is made of aluminum but concerned about dissimilar metal corrosion over time...probably brass would be best...or stainless stee; /archives//html/Topband/2003-08/msg00123.html (8,397 bytes)
133. Re: Topband: E layer ionograms (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Sun, 31 Aug 2003 19:40:51 -0400; Chuck Asked: Would any of the propagation people on the list know where I can find data showing nighttime foE for a most or all of a solar cycle? Try these guys at UMASS Lowell http://ulcar.uml.edu/; /archives//html/Topband/2003-08/msg00166.html (7,523 bytes)
134. Topband: Tee Antenna (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Wed, 24 Sep 2003 09:18:52 -0400; I have been using "elevated highest current" Tee antennas for a good while and they are great performers. I designed mine to place the highest current point midway up the 80 foot vertical section. Th; /archives//html/Topband/2003-09/msg00114.html (7,382 bytes)
135. Topband: Trees As RF Absorbers & Antennas (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Mon, 13 Oct 2003 10:14:26 -0400; The possible negative absorptive effects of locating an antenna transmitting setup for 160 meters in a dense forest would be very difficult to measure. If the antenna feedpoint impedance changes when; /archives//html/Topband/2003-10/msg00064.html (7,770 bytes)
136. Topband: Topband Propagation (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Tue, 14 Oct 2003 11:12:31 -0400; Per W0AH's query: I have the following on my propagation website at http://www.kn4lf.com/kn4lf5.htm . Read #4 and #5. Here are some general guidelines concerning correlation of propagation indices to; /archives//html/Topband/2003-10/msg00080.html (10,330 bytes)
137. Topband: Propagation Between MN and Germany (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Tue, 14 Oct 2003 17:39:44 -0400; Ford N0FP Said: .....I'm in Minnesota. When the 'red' regions of the oval are north of Winnipeg, chances are good that I'll be able to at least hear Western EU. But that's not the whole picture. I ha; /archives//html/Topband/2003-10/msg00082.html (8,726 bytes)
138. Topband: X 18+ Super Solar Flare (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Tue, 28 Oct 2003 09:44:27 -0500; An X18+ solar flare occurred this morning. It appears to be the second largest flare of cycle 23. Solar flares of this magnitude are rare and this event can be considered historic and a threat to pow; /archives//html/Topband/2003-10/msg00159.html (11,306 bytes)
139. Topband: New X Class Flare and Radio Blackout (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Sun, 2 Nov 2003 12:28:00 -0500; As of approximately 1710 UTC today we are experiencing a new huge X8+ class solar flare and associated shortwave blackout on the sun light side of Earth centered on the America's. D layer absorption; /archives//html/Topband/2003-11/msg00015.html (9,112 bytes)
140. Topband: X40+ ? Super Solar Flare (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Tue, 4 Nov 2003 15:52:47 -0500; It appears that the x-ray flux sensors became saturated by this latest super solar flare. Because of the duration saturation of the sensors this super solar flare probably exceeded X30-40 and has pro; /archives//html/Topband/2003-11/msg00019.html (10,821 bytes)

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