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Total 233 documents matching your query.

141. Re: Topband: Might be a good EU DX night (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Wed, 26 Dec 2018 17:34:50 -0500
Tim, You sure called it spot on, amazing signals from Europe prior to my sunset near Indianapolis. Thanks for the heads up. 73, Don wd8dsb _________________ Searchable Archives: http://www.contesting
/archives//html/Topband/2018-12/msg00270.html (8,965 bytes)

142. Re: Topband: Found my K9AY by WX0B AX-AYl-4 unit (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Tue, 29 Jan 2019 11:27:13 -0500
Hi Lloyd and gang, Because of the ground dependency issue, I really like pennants and flags which have no electrical connection to ground requirement. Modeling shows that pennants and flags are influ
/archives//html/Topband/2019-01/msg00161.html (11,730 bytes)

143. Re: Topband: Lack of QSO's (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Sun, 17 Feb 2019 16:25:16 -0500
Hi George, I thought conditions last night (Saturday night) were very good all night long on 160 meters, with signals from Europe pretty easy copy near Indianapolis at least 45 minutes before sunset.
/archives//html/Topband/2019-02/msg00166.html (8,593 bytes)

144. Re: Topband: T31EU peaking at W3 sunrise (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Fri, 22 Feb 2019 08:28:35 -0500
Hi Tim, T31EU was pretty strong all morning long at my QTH near Indianapolis between 0630 and 1030 UTC during the times they were running CW (averaging a solid 6 dB over my noise floor). Lots of ligh
/archives//html/Topband/2019-02/msg00232.html (7,635 bytes)

145. Re: Topband: 10 to 1 Ferrite Balun (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Tue, 19 Mar 2019 15:51:06 -0400
Hi Herb, I totally agree with Jim (KR9U), wind your own since you said you have 73 material binocular cores. For my pennants and other low band RX antennas I use BN73-202 binocular cores. I would pro
/archives//html/Topband/2019-03/msg00085.html (7,834 bytes)

146. Re: Topband: Voltage at top of vertical and scaling? (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Tue, 16 Apr 2019 12:47:38 -0400
Hi Jim, Let me take a crack at this based on some online reading I just did, and the examples I found were based on treating the antenna as a transmission line (W8JI as well as others treat it this w
/archives//html/Topband/2019-04/msg00064.html (9,129 bytes)

147. Re: Topband: Transmit High Pass Filters for BCB Interference (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Mon, 29 Jul 2019 14:08:13 -0400
Had a similar problem at Field Day a few years ago with WJR (50,000 watt station). Noticed the problem was not present when antenna tuner was inline. Many modern rigs have broadband front ends which
/archives//html/Topband/2019-07/msg00123.html (12,650 bytes)

148. Re: Topband: Summer Update & a Surprise (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Thu, 1 Aug 2019 09:21:03 -0400
Hi Bruce and gang, I don't think we should think of DXCC as a competition, but rather personal goals since everyone's station is totally different including location. Nevertheless I too believe FT8 s
/archives//html/Topband/2019-08/msg00010.html (15,477 bytes)

149. Re: Topband: Inverted L in contact with leaves (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Thu, 29 Aug 2019 13:29:20 -0400
I use a 68 foot base loaded vertical wire and what I notice is a significant downward shift in the resonant frequency during the summer (like 40 kHz) when leaves are touching my vertical, and when th
/archives//html/Topband/2019-08/msg00285.html (9,830 bytes)

150. Re: Topband: VE6WZ at sunset in Ukraine (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Fri, 6 Dec 2019 14:16:57 -0500
Hi Doug, At the very beginning of the recording you can hear part of a character then "DX K" then when you hear the first UT7NY you can hear a "CQ" underneath UT7NY and then "DX K". Then after the se
/archives//html/Topband/2019-12/msg00043.html (11,632 bytes)

151. Re: Topband: Does this solar minimum seem a little more extreme than usual? (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Mon, 16 Dec 2019 14:33:23 -0500
160 meters was fantastic overnight (Sunday night/Monday morning) from the Midwest USA into Europe. Signals peaking 20 to 35 db over my noise floor from big stations that normally run 6 to 12 db over
/archives//html/Topband/2019-12/msg00155.html (9,242 bytes)

152. Re: Topband: Wednesday 160m DX CW Activity Night (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Thu, 19 Dec 2019 16:52:04 -0500
Hi Roger, It was poor conditions. Don (wd8dsb) _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
/archives//html/Topband/2019-12/msg00199.html (9,378 bytes)

153. Topband: Strong Carrier 1828.5 (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Mon, 20 Jan 2020 18:42:33 -0500
Receiving strong carrier on 1828.5 KHz that sounds like sky wave. Its currently peaking 30 db over my noise floor at 6:40pm EST (2340 UTC), and it has an approximate heading of 55 degrees from the In
/archives//html/Topband/2020-01/msg00276.html (7,099 bytes)

154. Re: Topband: Strong Carrier 1828.5 (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Mon, 20 Jan 2020 18:58:58 -0500
Thanks guys. It just stopped at 6:57 pm EST. Don (wd8dsb) _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
/archives//html/Topband/2020-01/msg00278.html (8,539 bytes)

155. Re: Topband: T Top Verticals and yagis (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Sun, 1 Mar 2020 21:22:16 -0500
Hi Rick, I use a 68 foot base loaded vertical on 160 meters, but I also use 3 different pennant RX antennas. Unless it's ground wave, my 160 meter TX vertical is often deaf for stations in adjacent s
/archives//html/Topband/2020-03/msg00019.html (10,469 bytes)

156. Re: Topband: T Top Verticals and yagis (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Sun, 1 Mar 2020 21:47:54 -0500
Hi Rick, One more comment. I believe AM broadcast stations try to avoid phase cancellation between skywave and ground wave, and therefore they try and avoid antennas that have a high angle lobe. I'm
/archives//html/Topband/2020-03/msg00020.html (11,922 bytes)

157. Re: Topband: T Top Verticals and yagis (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Sun, 1 Mar 2020 22:44:31 -0500
Hi Rick, My first example is why NVIS can be useful. I often can't hear stations 150 miles away on 160 meters using my TX vertical, but they are booming in on my pennant that has a much better respon
/archives//html/Topband/2020-03/msg00025.html (9,799 bytes)

158. Topband: Was it a plane, was it a bird, was it Luis (IV3PRK) on 160 meters CW this morning? (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Mon, 16 Mar 2020 18:20:48 -0400
Wow, just about fell out of my chair with Joy when I heard Luis (IV3PRK) calling North American stations on 160 meters CW this morning. Luis had a very nice signal, and hope we continue to hear him o
/archives//html/Topband/2020-03/msg00207.html (7,500 bytes)

159. Re: Topband: Any experience with 2N3553? (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Thu, 19 Mar 2020 13:04:30 -0400
For grins and giggles I ordered 10 2N5109 parts on E-bay (from Asia). Also ordered new ones from Mouser which I just received today, and also had one that I purchased a long time ago from Mouser (all
/archives//html/Topband/2020-03/msg00244.html (8,161 bytes)

160. Re: Topband: Last night on 160 (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Mon, 23 Mar 2020 22:33:04 -0400
Hi Dave, Im hearing bursts of distorted audio right now on 1830.0 KHZ (it comes and goes). Bursts peak about 10db over my noise floor. Im hearing it on my pennant pointing 40 degrees from near Indian
/archives//html/Topband/2020-03/msg00300.html (8,555 bytes)


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