Mail Archive Search: <+from:jz73@verizon.net>

Results:

References: [ +from:jz73@verizon.net: 196 ]

Total 196 documents matching your query.

121. Re: Topband: Electrical height of short shunt fed tower? (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Tue, 10 Nov 2009 08:37:17 -0500; Anecdotal: In the 1980s, I had a 100-foot Rohn 25 shunt-fed tower with 200 radials. On top was a 204BA (4-el Hy Gain 20m yagi). The mast extended 12 feet above that. Later when I added a 4-el 15-mete; /archives//html/Topband/2009-11/msg00285.html (7,980 bytes)
122. Topband: Delaware report -- mobile (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Tue, 12 Jan 2010 20:07:09 -0500; Today was one of the few in the year when I had to leave for the office before sunrise. Around 1150z -- about a half hour before sunup -- while driving along the major north-south expressway in Delaw; /archives//html/Topband/2010-01/msg00111.html (6,568 bytes)
123. Re: Topband: Do beverage antennas work in dense wood? (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Sat, 03 Apr 2010 21:46:09 -0400; Hello Michael, I have many Beverages through my woods -- thick at spots -- and while the normal height is about 3 meters, when tree limbs fall on the wire the height may vary greatly but the performa; /archives//html/Topband/2010-04/msg00025.html (8,620 bytes)
124. Re: Topband: Fw: Shunt fed tower (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Sun, 25 Apr 2010 20:31:08 -0400; Wayne, I've usually found the 30-40 ft. height works fine if the tower is electrically 1/4 wave or less. But if it it is longer than 1/4 wave the longer shunt is needed. 73/Jon AA1K (/1 in Maine this; /archives//html/Topband/2010-04/msg00092.html (13,304 bytes)
125. Re: Topband: swr protection schematic 160m? (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Mon, 07 Jun 2010 07:55:14 -0400; Here's another one, from Elecraft, also available in kit form: http://www.elecraft.com/W2/W2.htm 73/Jon AA1K _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK; /archives//html/Topband/2010-06/msg00033.html (8,777 bytes)
126. Re: Topband: Beverages (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Sun, 11 Jul 2010 20:23:25 -0400; Is Europe due east of your QTH? The most critical factor in Beverage placement is to aim the wire in the desired direction of reception (or to null out noise in a particular direction). As for length; /archives//html/Topband/2010-07/msg00048.html (11,298 bytes)
127. Re: Topband: Beverages (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Fri, 16 Jul 2010 07:43:05 -0400; Hi John, Your note came just in time! I canceled the real estate deal to extend my Bevs!!! Actually this past winter I was able to extend a "worthless" broadside pair of 720-footers on Europe, spaced; /archives//html/Topband/2010-07/msg00082.html (12,244 bytes)
128. Topband: Band alive (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Mon, 30 Aug 2010 11:06:00 -0400; My frst two JA QSOs of the season just before sunrise this morning. Heard a couple of others calling but couldn't pull out of the noise. Yesterday good conditions also, Q's with FO8, YJ, VK and KH2.; /archives//html/Topband/2010-08/msg00060.html (6,218 bytes)
129. Re: Topband: Elevated Feedline for RX (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Tue, 21 Sep 2010 10:54:56 -0400; Back in the 1980s at another QTH, in northern Delaware, I had a single, half-mile run of mostly hardline and some RG6 feeding three Beverages. I piggybacked voltage on the feedline to control relays; /archives//html/Topband/2010-09/msg00064.html (7,442 bytes)
130. Re: Topband: Height of Beverage-Driveway (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Fri, 08 Oct 2010 11:51:37 -0400; I have done this over a driveway here. In fact it is a 935-foot long pair of broadside phased Beverages in which one goes over the driveway and at that spot is elevated to about 14 feet high for a di; /archives//html/Topband/2010-10/msg00037.html (8,434 bytes)
131. Re: Topband: Where are the JA stations? (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Fri, 24 Dec 2010 05:00:06 -0500; The band might be perking up. Last night just after his sunrise I was copying Ross 9M2AX for five minutes or so on 1832.5. He had QRN and didn't hear my calls. He was weaker on 80 meters when he QSY'; /archives//html/Topband/2010-12/msg00103.html (9,510 bytes)
132. Topband: H40FN 160m news (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Sun, 26 Dec 2010 07:42:15 -0500; I worked Siegfried on 3525 (QSX 3526.5) this morning right at my sunrise and when I asked about 160, he said said he wasn't QRV because the amplifier was out of order. No word on if he will try baref; /archives//html/Topband/2010-12/msg00121.html (6,290 bytes)
133. Re: Topband: Web SDR's and 'Cheating' (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Fri, 11 Feb 2011 08:18:15 -0500; absolutely an ethical violation! in a contest of course most rules forbid it. perhaps that's a different game, with different rules ....like talking on the telephone. 73/Jon AA1K www.aa1k.us ________; /archives//html/Topband/2011-02/msg00093.html (8,294 bytes)
134. Re: Topband: Weatherproof enclosures? (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Sat, 23 Apr 2011 10:54:58 -0400; Paul, I use old plastic soda bottles, 16 or 20 oz size. Cut off the threaded top so there's a hole about 2 in. diameter and it just pops over the end of the coax, hardline, etc. where the transformer; /archives//html/Topband/2011-04/msg00090.html (7,664 bytes)
135. Re: Topband: soldering radials (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Wed, 17 Aug 2011 04:42:01 -0400; Jorge, Perhaps your friend's concern was that the solder joints would corrode with time and galvanic action. Some have suggested using silver solder to avoid this problem. I used just regular solder; /archives//html/Topband/2011-08/msg00028.html (8,413 bytes)
136. Re: Topband: PL 259 for RG6 (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Mon, 10 Oct 2011 06:47:42 -0400; I've used lots of RG-6 over the years for transmitting. It handles full power fine, even through F connectors (got that tip years ago from KM1H) for various antennas 160-10m. Though most of mine is h; /archives//html/Topband/2011-10/msg00056.html (7,951 bytes)
137. Re: Topband: Receive ant question (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Fri, 28 Oct 2011 09:17:52 -0400; for the years I used a TS-940S, which was prone to picking up RF on a Beverage plugged into the RX-only input, I used a simple $2.00 Radio Shack SPST reed relay to short out the coax at the back of t; /archives//html/Topband/2011-10/msg00206.html (7,736 bytes)
138. Re: Topband: Noise problem question (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Tue, 20 Dec 2011 05:33:57 -0500; Dave, I use my mobile rig to track down such noises (an IC-706Mk2G with a KJ7U 160-6m screwdriver antenna and 2/440 whip). I also have a couple of small AM and VHF-AM (aircraft band) portable radios; /archives//html/Topband/2011-12/msg00471.html (9,769 bytes)
139. Re: Topband: Noise problem question (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Tue, 20 Dec 2011 19:53:30 -0500; tnx info Dave ....where can those be had? _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK; /archives//html/Topband/2011-12/msg00485.html (11,674 bytes)
140. Re: Topband: 1820 BCB (score: 1): Author: Jon Zaimes AA1K <jz73@verizon.net>; Date: Wed, 21 Dec 2011 11:34:23 -0500; I sent them a note earlier. The address is email@wdor.com. They were quite strong here this morning. I also had a report today from a ham in southern New Jersey that he was hearing "splatter" from my; /archives//html/Topband/2011-12/msg00490.html (7,090 bytes)

Current List: 121 - 140
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]