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Total 460 documents matching your query.

161. Re: Topband: Help installing compression connectors (score: 1)
Author: donovanf@starpower.net
Date: Mon, 17 Nov 2014 10:37:59 -0500 (EST)
Hi Tony, "Slip on" isn't really the right word... If an F connector slips onto RG-6 very easily its probably the wrong connector. On the other hand, sometimes its very difficult to insert quad shield
/archives//html/Topband/2014-11/msg00062.html (10,097 bytes)

162. Re: Topband: receive antenna opinions (score: 1)
Author: donovanf@starpower.net
Date: Sat, 22 Nov 2014 11:33:55 -0500 (EST)
Hi Don, W8JI's receiving antenna page provides excellent insight into the relative performance of various receiving antenna options, especially the RDF tables. http://www.w8ji.com/receiving.htm The S
/archives//html/Topband/2014-11/msg00112.html (9,114 bytes)

163. Re: Topband: Unknown Pulse Signal Wiping out 1900-1925 kHz (score: 1)
Author: donovanf@starpower.net
Date: Sun, 7 Dec 2014 18:10:08 -0500 (EST)
20 dB over S9 from the northeast direction from Maryland This definitely is not a low power transmitter! 73 Frank W3LPL -- Original Message -- Very strong in the mid-Atlantic region also. Sawtooth sw
/archives//html/Topband/2014-12/msg00107.html (10,771 bytes)

164. Re: Topband: tool for install radials (score: 1)
Author: donovanf@starpower.net
Date: Tue, 9 Dec 2014 10:38:20 -0500 (EST)
Hi Jorge, There are many ways to build a tool for burying radials, most involve a small tractor.. Here are some photos of one tool: http://fbusse.smugmug.com/Hobbies/Ham-Radio-Antenna-Radial-Plow/208
/archives//html/Topband/2014-12/msg00171.html (9,051 bytes)

165. Re: Topband: Silver solder (score: 1)
Author: donovanf@starpower.net
Date: Tue, 30 Dec 2014 19:58:27 -0500 (EST)
Hi Jorge, Very high cost silver solder isn't needed for radial connections. Any mechanically and electrically secure connection that achieves and maintains about an ohm or less of connection resistan
/archives//html/Topband/2014-12/msg00472.html (8,581 bytes)

166. Re: Topband: Silver solder (score: 1)
Author: donovanf@starpower.net
Date: Thu, 1 Jan 2015 14:25:13 -0500 (EST)
Hi Jorge, Aluminum wire may have a short life due to corrosion, depending on your local soil conditions. Aluminum wire buried in poorly drained clay soils is particularly susceptible to corrosion. It
/archives//html/Topband/2015-01/msg00001.html (12,191 bytes)

167. Re: Topband: EP6T and outside world (score: 1)
Author: donovanf@starpower.net
Date: Fri, 23 Jan 2015 11:22:12 -0500 (EST)
Commercial transmitters and receivers for 160 meters have long been available . During the 1950s and 1960s the 75A-4 and NC-300/303 were popular receivers and the Viking Ranger and Valiant were popul
/archives//html/Topband/2015-01/msg00191.html (10,411 bytes)

168. Re: Topband: Non-Invasive tree attachment? (score: 1)
Author: donovanf@starpower.net
Date: Sun, 25 Jan 2015 13:46:08 -0500 (EST)
Rope is a good non-invasive attachment if it will be in place for six months or less, otherwise it will damage the tree. Webbing is a better approach. You can use steel cable, rope, or webbing for a
/archives//html/Topband/2015-01/msg00230.html (8,460 bytes)

169. Re: Topband: K levels and skew path on 160 (score: 1)
Author: donovanf@starpower.net
Date: Tue, 27 Jan 2015 15:28:28 -0500 (EST)
and the Southern Ocean prevents the 160 meter long path from propagating due south (+/- about 20 degrees). Except for sunspot minimum, short path propagation transiting only the northern hemisphere
/archives//html/Topband/2015-01/msg00242.html (10,166 bytes)

170. Re: Topband: K levels and skew path on 160 (score: 1)
Author: donovanf@starpower.net
Date: Tue, 27 Jan 2015 22:58:19 -0500 (EST)
Hi JC, Thanks for your interesting email. You may be correct that SSE/SSW long path propagation may not extend very far into the southern hemisphere. I wasn't aware of the NNE/NNW observations by our
/archives//html/Topband/2015-01/msg00249.html (14,674 bytes)

171. Re: Topband: Preamplifiers (score: 1)
Author: donovanf@starpower.net
Date: Mon, 2 Feb 2015 19:10:00 -0500 (EST)
Hi Andy , I use preamps from three different manufacturers in my station : - DX Engineering RPA-1 $143.95 - Clifton Labs Z10043 (or Z10042) Norton Preamp $100.00 (with enclosure) - Advanced Receiver
/archives//html/Topband/2015-02/msg00016.html (9,221 bytes)

172. Re: Topband: Out-of-Turn Callers (score: 1)
Author: donovanf@starpower.net
Date: Tue, 3 Feb 2015 16:23:19 -0500 (EST)
Hi guys, We've beat up KK6ZM enough for his honest mistake, we all make mistakes. By now I'm sure Patrick has heard from his well known father and his uncles too and there's no chance he'll make that
/archives//html/Topband/2015-02/msg00041.html (7,417 bytes)

173. Topband: AC line safety capacitors (score: 1)
Author: donovanf@starpower.net
Date: Thu, 5 Feb 2015 11:29:14 -0500 (EST)
At only 29 cents each, its time for me to methodically remove all of my .01 uF 2 kV ceramic bypass capacitors from the line inputs to most of my home brew electronic devices and replace them with saf
/archives//html/Topband/2015-02/msg00175.html (10,501 bytes)

174. Re: Topband: HC1PF on TB Tuesday 17th February 2015 (score: 1)
Author: donovanf@starpower.net
Date: Tue, 17 Feb 2015 12:13:12 -0500 (EST)
Luis is ten km east of Quito, only one thousand feet (300 meters) south of the equator at an elevation of 7800 feet. In Quito they refer to their dry season (Jun-Sep) as summer and their wet season (
/archives//html/Topband/2015-02/msg00505.html (9,936 bytes)

175. Re: Topband: Fw: #1 on the DXCC Honor Roll (score: 1)
Author: donovanf@starpower.net
Date: Fri, 27 Feb 2015 18:40:13 -0500 (EST)
Hi Herb, The DXer you're referring to is Charlie Mellen W1FH and the deleted DXCC entity is CR8 Damao, Diu. He kindly loaned my his CR8 QSL for a DXCC QSL display at the 1966 ARRL National Convention
/archives//html/Topband/2015-02/msg00752.html (8,986 bytes)

176. Re: Topband: 160 Tower on 80 (score: 1)
Author: donovanf@starpower.net
Date: Sun, 1 Mar 2015 02:16:40 -0500 (EST)
Hi Glenn, You should be very worried about voltage breakdown of your base insulator! Do you know how much RF voltage your base insulator can safely handle? A fourth idea you might consider is to simp
/archives//html/Topband/2015-03/msg00002.html (9,015 bytes)

177. Re: Topband: [Bulk] Improving low angle reception DX Eng 8 ele Circle RCV Array (score: 1)
Author: donovanf@starpower.net
Date: Sun, 1 Mar 2015 17:44:45 -0500 (EST)
Hi Doug, I also use passive verticals in my 350 foot diameter W8JI 8-circle array. Reliability has been excellent (no failures in three years) because there are no sensitive electronic components in
/archives//html/Topband/2015-03/msg00027.html (13,257 bytes)

178. Re: Topband: VE1PZ (score: 1)
Author: donovanf@starpower.net
Date: Thu, 19 Mar 2015 19:16:34 -0400 (EDT)
He was in the pileups and much to strong to be outside North America 73 Frank W3LPL -- Original Message -- I see VE1PZ is one of the few that worked the E3! Who is he? I've never heard him on Top ban
/archives//html/Topband/2015-03/msg00189.html (7,481 bytes)

179. Re: Topband: BOG antennas (score: 1)
Author: donovanf@starpower.net
Date: Wed, 1 Apr 2015 10:55:16 -0400 (EDT)
Hi Felipe, Suggest you examine this website: http://n4dj.com/Beverage.html 73 Frank W3LPL -- Original Message -- From: "Filipe Lopes" <ct1ilt@gmail.com> To: "k1fz" <k1fz@myfairpoint.net> Cc: "topband
/archives//html/Topband/2015-04/msg00006.html (8,879 bytes)

180. Re: Topband: Salt-Water Qth! (score: 1)
Author: donovanf@starpower.net
Date: Wed, 1 Apr 2015 12:17:23 -0400 (EDT)
Hi Ray, Two primary factors affect sky wave signal strength from Topband verticals close to salt water: 1. ground loss in the immediate vicinity of the feed point. The feed point must be much closer
/archives//html/Topband/2015-04/msg00008.html (11,961 bytes)


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