- 1. Topband: Gamma matching crank-up tower (score: 1)
- Author: jim@n7us.net (Jim McDonald)
- Date: Wed, 23 Oct 2002 21:37:14 -0700
- I now have an inverted vee hung at the top of my motorized US Tower 89' crank-up (the one that is rated at 30 square feet in a 50 mph wind). I know I should have a modeling program, but I don't, so I
- /archives//html/Topband/2002-10/msg00124.html (7,950 bytes)
- 2. Topband: Gamma matching crank-up tower (score: 1)
- Author: k6se@juno.com (k6se@juno.com)
- Date: Thu, 24 Oct 2002 09:36:47 -0700
- "I now have an inverted vee hung at the top of my motorized US Tower 89' crank-up (the one that is rated at 30 square feet in a 50 mph wind). I know I should have a modeling program, but I don't, so
- /archives//html/Topband/2002-10/msg00127.html (9,504 bytes)
- 3. Topband: Gamma matching crank-up tower (score: 1)
- Author: ve6wz@shaw.ca (VE6WZ)
- Date: Thu, 24 Oct 2002 13:59:41 -0400
- Jim: I have the same tower here. Force 12 C-3ss at 90' and a 2 el short boom inductor loaded 80m\40m Yagi at 100'. I drop the shut wire from the top of the third section up from the bottom. (I just h
- /archives//html/Topband/2002-10/msg00128.html (7,687 bytes)
- 4. Topband: Gamma matching crank-up tower (score: 1)
- Author: ve6wz@shaw.ca (VE6WZ)
- Date: Thu, 24 Oct 2002 14:14:32 -0600
- Why does it screw things up ?? I am curious, since running the cables inside my tower is not an option since the tower is kept down when I'm not QRV....it will go up and down many times a week. Just
- /archives//html/Topband/2002-10/msg00130.html (8,023 bytes)
- 5. Topband: Gamma matching crank-up tower (score: 1)
- Author: k6se@juno.com (k6se@juno.com)
- Date: Thu, 24 Oct 2002 13:14:24 -0700
- It occured to me that Jim, N7US may not be able to shunt feed his tower at a specific height above ground because it is a crank-up tower (and the tower may not be able to be fully telescoped due to i
- /archives//html/Topband/2002-10/msg00131.html (7,967 bytes)
- 6. Topband: Gamma matching crank-up tower (score: 1)
- Author: jbattin@msn.com (jbattin)
- Date: Thu, 24 Oct 2002 18:17:45 -0500
- many 3 What you want is for the wires to assume the same potential as the tower, and that is obtained with coupling as tight as possible. Put them as close to the tower as you can. John
- /archives//html/Topband/2002-10/msg00132.html (9,058 bytes)
- 7. Topband: Gamma matching crank-up tower (score: 1)
- Author: k6se@juno.com (k6se@juno.com)
- Date: Thu, 24 Oct 2002 16:23:50 -0700
- "Why does it screw things up ?? I am curious, since running the cables inside my tower is not an option since the tower is kept down when I'm not QRV....it will go up and down many times a week. Just
- /archives//html/Topband/2002-10/msg00133.html (9,050 bytes)
- 8. Topband: Gamma matching crank-up tower (score: 1)
- Author: j.a.hermans@skynet.be (j.a.hermans)
- Date: Thu, 24 Oct 2002 23:40:08 -0000
- many _____________________________________________ * Just working DX with an antenna is not proof that it is * working as well as it could, ___________________________________________ I just tried to
- /archives//html/Topband/2002-10/msg00135.html (9,400 bytes)
- 9. Topband: Gamma matching crank-up tower (score: 1)
- Author: W8JI@contesting.com (Tom Rauch)
- Date: Thu, 24 Oct 2002 19:54:43 -0400
- When cables are passed down through the tower center, the tower forms a less-than-perfect Faraday cage and the cables are not excited nearly as much as when hanging on the outside. Bad luck also mig
- /archives//html/Topband/2002-10/msg00136.html (8,369 bytes)
- 10. Topband: Gamma matching crank-up tower (score: 1)
- Author: gmguerin@voyager.net (George & Marijke Guerin)
- Date: Fri, 25 Oct 2002 06:19:31 -0400
- Dear Jim et al, As many have commented, the cables that hang down on stand-offs make shuntfeeding a tower difficult at best. Rather than sweat the details or argue about cable dressing along tower le
- /archives//html/Topband/2002-10/msg00137.html (8,049 bytes)
This search system is powered by
Namazu