- 21. Re: Topband: full wave loop (score: 1)
- Author: "DAVID CUTHBERT" <DAVIDNNAN@MSN.COM>
- Date: Thu, 3 Mar 2005 07:09:20 -0700
- Robert, I ran a simulation of a horizontal full wavelength loop and a dipole, both at 50'. They are quite similar. They are cloud burners. But, compared to a 1/4 wavelength vertical with 18 radials t
- /archives//html/Topband/2005-03/msg00021.html (7,924 bytes)
- 22. Topband: Elevated vs Buried Radials analyzed (score: 1)
- Author: "DAVID CUTHBERT" <DAVIDNNAN@MSN.COM>
- Date: Sun, 6 Mar 2005 07:45:38 -0700
- Larry, I have analyzed the gull wing versus the level radial question using NEC-2. NEC-2 shows essentially no difference- the gull wing configuration has 0.05 dB more gain. Slightly lower ground loss
- /archives//html/Topband/2005-03/msg00070.html (7,979 bytes)
- 23. Topband: 160 wire (score: 1)
- Author: "DAVID CUTHBERT" <DAVIDNNAN@MSN.COM>
- Date: Sat, 26 Mar 2005 11:11:51 -0700
- Tony, the Wireman http://thewireman.com/index.shtml<http://thewireman.com/index.shtml> carries many types of antenna wire that are unusual. Part #532 looks like it might do the job. It is a coated, #
- /archives//html/Topband/2005-03/msg00225.html (7,238 bytes)
- 24. Topband: Quarter wavelength stub as trap (score: 1)
- Author: "DAVID CUTHBERT" <DAVIDNNAN@MSN.COM>
- Date: Fri, 8 Apr 2005 18:44:25 -0600
- Good night from Italy. What do you think about using a quarter wavelength shorted stub, made with coaxial cable, as trap for an 80m + 160m inverted L? 15.6m of RG213, shorted at one end, will block 8
- /archives//html/Topband/2005-04/msg00095.html (6,878 bytes)
- 25. Topband: trap inv-l (score: 1)
- Author: "DAVID CUTHBERT" <DAVIDNNAN@MSN.COM>
- Date: Sat, 9 Apr 2005 09:59:56 -0600
- However, the 160 meter quarter wavelength inverted-L should make a fine half wavelength antenna on 80 meters. For installations that have effective ground resistance above 15 ohms this will beat the
- /archives//html/Topband/2005-04/msg00098.html (7,429 bytes)
This search system is powered by
Namazu