Search String: Display: Description: Sort:

Results:

References: [ +from:donovanf@starpower.net: 460 ]

Total 460 documents matching your query.

121. Topband: The solar magnetic field is about to flip, signalling the mid point of solar cycle 24 (score: 1)
Author: donovanf@starpower.net
Date: Tue, 6 Aug 2013 00:30:08 -0400 (EDT)
http://www.youtube.com/watch?v=34gNgaME86Y _________________ Topband Reflector
/archives//html/Topband/2013-08/msg00071.html (6,851 bytes)

122. Re: Topband: Effect of trees- tree appreciation (score: 1)
Author: donovanf@starpower.net
Date: Thu, 8 Aug 2013 13:09:40 -0400 (EDT)
When I was a teenager chasing Gus Browning on 40 meters I caught a tree on fire at night because the end of my dipole was in some dead tree branches! My parents were not happy... 73 Frank W3LPL -- Or
/archives//html/Topband/2013-08/msg00095.html (10,596 bytes)

123. Re: Topband: 3B9EME (score: 1)
Author: donovanf@starpower.net
Date: Tue, 10 Sep 2013 09:15:06 -0400 (EDT)
I worked and received a QSL from Jackie for a Topband QSO on 13 Nov 1987. A long time ago! 73 Frank W3LPL -- Original Message -- You did not say exactly how many years ago you worked Jacky on 160. In
/archives//html/Topband/2013-09/msg00152.html (10,087 bytes)

124. Topband: The Quest to save AM radio (score: 1)
Author: donovanf@starpower.net
Date: Tue, 10 Sep 2013 09:48:55 -0400 (EDT)
Forwarded from W0YR: The FCC is going forward with its plan to allow the r.f. noise floor to rise to unprecedented levels which will, of course adversely affect our hobby. Another effect is to eventu
/archives//html/Topband/2013-09/msg00154.html (6,755 bytes)

125. Re: Topband: W8ji ATR-10 design 160M? (score: 1)
Author: donovanf@starpower.net
Date: Thu, 17 Oct 2013 12:15:27 -0400 (EDT)
Hi Tim, This is the patent for the classic Edgar F. Johnson (E.F. Johnson) transposition insulator: http://reference.insulators.info/patents/patents/pdf/4/us002043754-001.pdf http://www.google.com/pa
/archives//html/Topband/2013-10/msg00110.html (11,803 bytes)

126. Re: Topband: Steady Carrier on 80 CW -BTW (score: 1)
Author: donovanf@starpower.net
Date: Fri, 1 Nov 2013 02:30:46 -0400 (EDT)
This is an example of a fishnet buoy that operates from 1.6 to 4 MHz. http://www.blueoceantackle.com/radio_buoys.htm The good news is they're battery operated and will ultimately have to be retrieved
/archives//html/Topband/2013-11/msg00009.html (9,242 bytes)

127. Re: Topband: Steady Carrier on 80 CW (score: 1)
Author: donovanf@starpower.net
Date: Sat, 2 Nov 2013 10:45:11 -0400 (EDT)
A rough azimuth from W4ZV in NC would be helpful , and from Florida -- Original Message -- Paul and Gang, Based on Pauls heading and a few other headings that intersect Pauls heading, it looks like t
/archives//html/Topband/2013-11/msg00055.html (9,469 bytes)

128. Re: Topband: Replacing F Connectors with BNCs (score: 1)
Author: donovanf@starpower.net
Date: Thu, 14 Nov 2013 07:31:08 -0500 (EST)
Hi Pete, I wonder why you've decided to switch to BNCs? They have their own issues and they've completely unsuitable for outdoor use. I wonder if perhaps you've been using poor quality F connectors?
/archives//html/Topband/2013-11/msg00189.html (8,064 bytes)

129. Re: Topband: bias tee (score: 1)
Author: donovanf@starpower.net
Date: Thu, 14 Nov 2013 09:11:28 -0500 (EST)
Hi Pete, You can use your MFJ 259 to measure loss through your bias-T setup. 100 microhenries should be adequate; however, a properly designed bias-T should always have two inductors at the injection
/archives//html/Topband/2013-11/msg00194.html (8,229 bytes)

130. Topband: FCC Notice of Proposed Rulemaking: Revitalization of the AM Radio Service (score: 1)
Author: donovanf@starpower.net
Date: Wed, 4 Dec 2013 11:09:15 -0500 (EST)
There may be some interest among topbanders in this NPRM attempting to revitalize our neighboring spectrum user. http://media.npr.org/assets/news/2013/fcc.pdf 73 Frank W3LPL _________________ Topband
/archives//html/Topband/2013-12/msg00016.html (7,175 bytes)

131. Re: Topband: Topband Digest, Vol 132, Issue 13 (score: 1)
Author: donovanf@starpower.net
Date: Sun, 15 Dec 2013 11:58:11 -0500 (EST)
A noise canceller such as the DX Engineering NCC-1 is an excellent solution to RFI from a adjoining neighbor's house, such a plasma TV or switching power supply RFI. Ideally, install a simple antenna
/archives//html/Topband/2013-12/msg00161.html (64,226 bytes)

132. Re: Topband: on the webcam issue (score: 1)
Author: donovanf@starpower.net
Date: Thu, 2 Jan 2014 10:19:29 -0500 (EST)
Hi Mike , Thanks for sharing that video. Crystal controlled QRP from the west coast is quite a challenge! Have you thought about doing something about that headphone cord under your arm? tks 73 Frank
/archives//html/Topband/2014-01/msg00006.html (8,221 bytes)

133. Re: Topband: Ends for older Phillystran (score: 1)
Author: donovanf@starpower.net
Date: Tue, 14 Jan 2014 13:03:24 -0500 (EST)
Large guy insulators may pass two turns of your Phillystran. They're always available on ebay for reasonable prices. If it would help, I have several guy insulators with one inch diameter holes that
/archives//html/Topband/2014-01/msg00117.html (11,733 bytes)

134. Re: Topband: Ends for older Phillystran (score: 1)
Author: donovanf@starpower.net
Date: Tue, 14 Jan 2014 14:21:21 -0500 (EST)
Another alternative is to wrap two turns of the Phillystran around a short length of three inch diameter steel pipe or tubing. Then pass a large shackle through the tubing to fasten it to the steel c
/archives//html/Topband/2014-01/msg00120.html (12,252 bytes)

135. Re: Topband: Short receiving verticals question (score: 1)
Author: donovanf@starpower.net
Date: Thu, 30 Jan 2014 12:55:58 -0500 (EST)
Hi Doug, A few notes about the short verticals in my 160M passive receive array. I use them in my W8JI broadside-endfire passive array described in detail on Tom's home page and on W5ZN's home page.
/archives//html/Topband/2014-01/msg00357.html (12,962 bytes)

136. Re: Topband: Short receiving verticals question (score: 1)
Author: donovanf@starpower.net
Date: Thu, 30 Jan 2014 13:45:36 -0500 (EST)
At the speeds that deer run across an open field, I doubt that repellant will help. Seven foot fence posts work perfectly, and they will last a lifetime! 73 Frank W3LPL -- Original Message -- A possi
/archives//html/Topband/2014-01/msg00365.html (9,144 bytes)

137. Re: Topband: Short receiving verticals question (score: 1)
Author: donovanf@starpower.net
Date: Sat, 1 Feb 2014 12:42:54 -0500 (EST)
Hi Jon, I've also found that my four phased short verticals consistently outperform my Beverages, especially when arrival angles are low. Sometimes I can copy signals on the phased averticals that I
/archives//html/Topband/2014-02/msg00002.html (14,626 bytes)

138. Topband: FT5ZM logs updated (score: 1)
Author: donovanf@starpower.net
Date: Sat, 1 Feb 2014 16:59:51 -0500 (EST)
https://secure.clublog.org/charts/?c=ft5zm#r Topband QSOs so far : Europe: 861 Asia: 244 North America: 164 Oceania: 16 South America 0 Total 1296 _________________ Topband Reflector Archives - http:
/archives//html/Topband/2014-02/msg00016.html (7,301 bytes)

139. Re: Topband: Shared Apex Loop Array (score: 1)
Author: donovanf@starpower.net
Date: Sun, 9 Feb 2014 13:13:54 -0500 (EST)
See N3OC's review of the Shared Apex Loop Array in the February PVRC Newsletter, page 5 http://pvrc.org/Newsletters/feb14.pdf Its competitive with other small receiving arrays and single Beverages an
/archives//html/Topband/2014-02/msg00104.html (8,302 bytes)

140. Re: Topband: Palomar R-X Noise Bridge (score: 1)
Author: donovanf@starpower.net
Date: Fri, 14 Feb 2014 11:42:27 -0500 (EST)
Null depth is a function of cable loss. Heliax produces the deepest null, small diameter coax (RG-59, RG-58) is quite poor 75 vs. 50 ohm should make no difference. 73 Frank W3LPL -- Original Message
/archives//html/Topband/2014-02/msg00219.html (9,059 bytes)


This search system is powered by Namazu