Search String: Display: Description: Sort:

Results:

References: [ +from:w9ac@arrl.net: 174 ]

Total 174 documents matching your query.

161. Re: Topband: JA's came in droves today on 160 (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Thu, 31 Jan 2019 15:41:23 -0500
supervision." Already happening with Windows macro commands. Anyone who works me in the sparse instances I'm on FT8 is making a fully-automated contact. When one FT8 contact is complete, macros star
/archives//html/Topband/2019-01/msg00192.html (11,152 bytes)

162. Re: Topband: Reverse Beacon Network (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Fri, 1 Feb 2019 10:56:31 -0500
out that I am indeed getting out and the band is open..." If PSKReporter is to believed, total global CW activity across bands is now less than 1% of FT8. For example, look at the report for the las
/archives//html/Topband/2019-02/msg00013.html (7,120 bytes)

163. Topband: Reverse Beacon Network (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Fri, 1 Feb 2019 11:07:51 -0500
Sorry, meant, November, 2017. Paul, W9AC _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
/archives//html/Topband/2019-02/msg00016.html (7,001 bytes)

164. Re: Topband: 7P8 - more (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Thu, 14 Mar 2019 13:49:10 -0400
No issues hearing 7P8 at my local SS yesterday but the QSB fades were very deep and long. Possibly the fades weren't as bad later in the evening? Paul, W9AC Before last night (NA time) Club Log was s
/archives//html/Topband/2019-03/msg00036.html (7,176 bytes)

165. Re: Topband: 160 (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Fri, 2 Aug 2019 22:47:34 -0400
If you want to fully automate FT8, there's a presentation available on YouTube. It only requires installing Quick Macros (QM). No hacking to the core program is required. During my setup, it was nec
/archives//html/Topband/2019-08/msg00100.html (9,913 bytes)

166. Re: Topband: WAR ! (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Sat, 3 Aug 2019 12:10:02 -0400
itself UN-attended. Is that just not even legal. Never mind ethical? Fully automated does not always mean unattended. In the rare instances I am on FT8 and it's automated through Quick Macros, I may
/archives//html/Topband/2019-08/msg00122.html (9,034 bytes)

167. Re: Topband: YCCC 9 Circle preamp failure (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Fri, 13 Sep 2019 15:41:35 -0400
Steve, I recently ran into an identical problem with an Alpha 89 amplifier. A pair of 0.01 uF/100V caps had failed on the plate choke clapper arm relay. The caps are used on the relay coil as an RF b
/archives//html/Topband/2019-09/msg00066.html (9,018 bytes)

168. Re: Topband: spark gap construction ideas for 160m tower (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Mon, 7 Oct 2019 09:48:44 -0400
Here's a DIY article from Jeff Welton at Nautel: http://support.nautel.com/tips-n-tricks/how-to-make-roll-your-own-carbon-ball-gaps/ The carbon spheres that Jeff mentions are made by Ross Engineering
/archives//html/Topband/2019-10/msg00024.html (10,302 bytes)

169. Re: Topband: de n7dd (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Thu, 9 Jan 2020 10:24:43 -0500
500 pf that has a NPO value? Once you get above about 100pF, NP0 options are very limited. Be mindful of the RF current magnitude in the application. Small doorknobs can heat and change in value. In
/archives//html/Topband/2020-01/msg00098.html (7,732 bytes)

170. Re: Topband: de n7dd (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Thu, 9 Jan 2020 16:52:18 -0500
You can try several paralleled doorknob caps to lower ESR, thus minimize cap heating. In my case, one vacuum variable will replace the HEC doorknob pair. In the alternative, an air variable in a WX-p
/archives//html/Topband/2020-01/msg00101.html (10,660 bytes)

171. Topband: T-loaded vertical (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Tue, 18 Feb 2020 14:49:48 -0500
modeled it in his NEC-4 licensed software, and found no increase in the far field compared to a resonant antenna." Looks like I accidentally cross-posted to the TowerTalk list, so I'll bring it back
/archives//html/Topband/2020-02/msg00170.html (8,055 bytes)

172. Re: Topband: T Top Verticals and yagis (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Fri, 28 Feb 2020 12:45:19 -0500
I would hate to give up the efficiency of an over-resonated T, even if field strength isnt significantly better than an L design. I think two design issues help to avoid pattern distortion to nearby
/archives//html/Topband/2020-02/msg00253.html (10,123 bytes)

173. Re: Topband: T Top Verticals and yagis (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Fri, 28 Feb 2020 15:36:56 -0500
Frank, Perhaps you can clarify what you mean by "parallel." Are you referring to the T top in parallel and *in front* of the 40m Yagi? Or, do you mean in parallel with the Yagi but off to the side by
/archives//html/Topband/2020-02/msg00260.html (11,990 bytes)

174. Re: Topband: The WD8DSB mini-flag antenna (score: 1)
Author: "Paul Christensen" <w9ac@arrl.net>
Date: Wed, 24 Feb 2021 12:41:36 -0500
Don's directional loop should significantly reduce my tracking time for most common switching noise in the neighboring area. I currently use a National RF loop + preamp with an SDR-IQ receiver strapp
/archives//html/Topband/2021-02/msg00117.html (9,481 bytes)

Current List: 161 - 174
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9]
This search system is powered by Namazu