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161. Re: Topband: Propagation Question (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Sun, 8 Nov 2020 12:53:35 -0500
Hello Paul, 160 is a nighttime band. It opens to Europe at your sunset and will close to Europe shortly after their sunrise. Good DX to the south can happen when our sun is down - until the sunrises
/archives//html/Topband/2020-11/msg00046.html (8,788 bytes)

162. Topband: Reminder - Propagation Summit 2021 - This weekend - free (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Tue, 19 Jan 2021 00:09:22 -0500
Contest University will host "Propagation Summit" on January 23, 2021. All times are USA EST. 11 AM Introduction - Tim Duffy K3LR and Ray Novak N9JA *Moderators Scott Jones N3RA and George Fremin K5T
/archives//html/Topband/2021-01/msg00198.html (7,718 bytes)

163. Re: Topband: The WD8DSB mini-flag antenna (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Wed, 24 Feb 2021 16:55:55 -0500
Hello Don and John: DXE has not measured the noise figure of the loop preamp yet, but we will soon and it will be posted on the part detail for the loop amplifier. https://www.dxengineering.com/parts
/archives//html/Topband/2021-02/msg00124.html (15,748 bytes)

164. Re: Topband: Signal source RF amplifier (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Sun, 2 May 2021 21:03:41 -0400
Hello Steve: One possible solution is a Elecraft XG-3 (at 0 dBm) as a start - with a 13 dB amplifier (pretty simple). https://static.dxengineering.com/global/images/instructions/ect-xg3.pdf Greg, W8W
/archives//html/Topband/2021-05/msg00005.html (8,102 bytes)

165. Re: Topband: Materials for Beverages? (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Tue, 3 Aug 2021 14:16:04 -0400
Two things concern me about black. UV and possible carbon used to color black - which may be conductive at RF frequencies 73 Tim K3LR Gene, I have used those and others in that series with only fair
/archives//html/Topband/2021-08/msg00005.html (17,644 bytes)

166. Re: Topband: Materials for Beverages? (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Tue, 3 Aug 2021 20:20:16 -0400
Hi Grant The issue with some black insulators - with RX antennas they might not go up in smoke, however they are still not a good insulator at RF - even for RX antennas. When coloring black - no carb
/archives//html/Topband/2021-08/msg00009.html (22,015 bytes)

167. Re: Topband: Question on active vertical spacing (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Fri, 6 Aug 2021 10:18:18 -0400
Hello James: Responding on behalf of DX Engineering. I do not see your email in the que. You can separate the antennas 1/4 wavelength for 160 and the operation will also be OK on 80 meters. You need
/archives//html/Topband/2021-08/msg00014.html (8,751 bytes)

168. Re: Topband: JT5DX - JT1CO confirmations (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Fri, 10 Sep 2021 08:33:26 -0400
Send a direct card to JT1CO with a few $$$ to cover postage (not just SASE). I received my top band card from JT5DX - no problem 73 Tim K3LR hello How do you get confirmations from these stations? No
/archives//html/Topband/2021-09/msg00005.html (8,623 bytes)

169. Re: Topband: Congratulations - VE6WZ (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Wed, 13 Oct 2021 09:32:38 -0400
Way to go Steve! BIG CONGRATS! VE6WZ on Topband - rocks! 73 Tim K3LR Congratulations to Steve Babcock, VE6WZ, who received the Yasme Excellence Award for his contribution to the art of lowband antenn
/archives//html/Topband/2021-10/msg00021.html (8,206 bytes)

170. Re: Topband: Feedline Choke Placement in RX systems (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Tue, 30 Nov 2021 15:52:33 -0500
I do have very high CMI chokes (0ver 10K ohms) at the feedpoint of each vertical element and at the HI-Z combiner box for each element. This may seem extreme, but I am more than pleased with the resu
/archives//html/Topband/2021-11/msg00107.html (13,555 bytes)

171. Re: Topband: Region One stations below 1810 kHz (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Fri, 24 Dec 2021 19:46:49 -0500
You already know the answer. K3LR And if a Region 1 stations modified his log to change the frequency information to make it look legit - is that unsportsmanlike behavior? Tree N6TR _________________
/archives//html/Topband/2021-12/msg00075.html (7,117 bytes)

172. Re: Topband: Top Ten Band Decoder Cable for Icom (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Wed, 29 Dec 2021 11:44:16 -0500
HI Dave We are working on a solution for you. Happy New Year! 73 Tim K3LR CEO DX Engineering Greetings Topbanders. . . I'm looking for the interface cable for a Top Ten Band Aide Band Decoder and an
/archives//html/Topband/2021-12/msg00091.html (8,224 bytes)

173. Re: Topband: 1:2 UNUN (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Mon, 17 Jan 2022 13:34:56 -0500
I match my 26 ohm feed point with a simple L network. One series coil then a shunt capacitor. Steps up to 50 ohms perfectly. 73 Tim K3LR Maybe this will help: I use a 1:2.25 Unun (3 to 2 turns ratio)
/archives//html/Topband/2022-01/msg00105.html (9,989 bytes)

174. Topband: Announcing the 2022 Dayton TopBand Dinner - 32nd Annual Event! (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Thu, 27 Jan 2022 00:25:58 -0500
Continuing the great Dayton Top Band dinner tradition that George, K8GG and George, W8UVZ started, I am proud to announce the 32nd Annual Dayton TopBand dinner. Dinner reservations are now available
/archives//html/Topband/2022-01/msg00138.html (7,976 bytes)

175. Topband: TopBand Dinner at Dayton - Keynote Speaker Announced (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Mon, 21 Mar 2022 17:23:17 -0400
I am pleased to announce that John, VE3EJ will be our Top Band Dinner speaker during Hamvention 2022 Friday night at 6:30 PM - May 20 - at the Hope Hotel Tickets are still available http://topbanddin
/archives//html/Topband/2022-03/msg00036.html (6,531 bytes)

176. Re: Topband: What antenna would you build? (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Thu, 24 Mar 2022 01:13:20 -0400
Hello Dino, Take a look in the last three editions of the ON4UN Low Band book - in the Yagi chapter. I have described in detail the 3 element vertical Yagi for 160 meters that I am using. Gives over
/archives//html/Topband/2022-03/msg00040.html (9,130 bytes)

177. Topband: 2022 Top Band Dinner at Dayton - Tickets are available (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Sun, 24 Apr 2022 08:57:17 -0400
Friday, May 20, 2022 - Social Hour at 6:00 PM at the HOPE HOTEL Dinner at 7:00 PM Get tickets here: https://topbanddinner.com Great Top Band Fellowship, Top Band DXCC Countdown and the Keynote Speake
/archives//html/Topband/2022-04/msg00044.html (6,689 bytes)

178. [CQ-Contest] Dayton Contest Dinner and TopBand Dinner (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Thu, 5 May 2022 14:50:05 -0400
Tickets are still available for the Contest Dinner and the TopBand Dinner at the Hope Hotel http://contestdinner.com http://topbanddinner.com Dayton Contest Activities: https://www.contestsupersuite.
/archives//html/Topband/2022-05/msg00000.html (6,470 bytes)

179. Topband: Dayton Top Band Dinner On Friday May 20, 2022 (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Fri, 13 May 2022 08:57:13 -0400
One week from today - The Annual Top Band Dinner in Dayton. John, VE3EJ is the featured speaker Tickets and details are here https://www.topbanddinner.com/ 73 Tim K3LR _________________ Searchable Ar
/archives//html/Topband/2022-05/msg00002.html (6,515 bytes)

180. Re: Topband: Small Loop does not receive weak signal on 160m BOUVET RX SPOILER (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Tue, 27 Dec 2022 18:14:09 -0500
Hello Wes Let my team check on when this will come back. Manufacturing of HI-Z is coming on line at DXE soon. We will get back to you 73 Tim K3LR CEO DX Engineering --Original Message-- From: Topband
/archives//html/Topband/2022-12/msg00145.html (12,540 bytes)


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