On Wed, 23 Jun 2010 00:19:03 -0700, Brett Howard <br...@livecomputers.com> wrote:
Ditch the 43 foot vertical! The 43 foot vertical craze is a joke, as you can see by the figures, Tom, W8JI, gives you in his post showing feedline loss and SWR. During FD you are going to get most of your points from QSO's within the U.S.A., so put up a 40m ground plane at eight feet on a 4X4 wooden post in a two foot hole with 4 radials (you can use the radials to guy the wooden post). 40m is a good band for day and night and is only 32 feet or so tall plus eight feet of post. By doing this you will have a resonant antenna that will cover 360 degrees at ranges within the U.S.A. Adjust the length of your 43 ft vertical by removing the top ten feet and adjusting it for the end of 40m that you are going to work or set it in the middle of the band and attach it to the post. Tom, N5GE Licensed since 1976 QCWA Life Member 35102 n...@n5ge.com http://www.n5ge.com http://www.swotrc.net >Yea I know I'm going way overkill and I was doing all the calculations >by hand of total loss and at a 7:1 SWR (which is entirely possible on >this 43 ft vertical) the loss at 30Mhz can get kinda ugly... I've not >modeled it fully but on all bands but on 20 meters its 7:1 and on 40 >meters its 3:1... [snip] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
