Hank et all , The verticals base impedance is between 45 - 50 ohms.
My issue is that I'm hoping to fit 1ea inductor into the 4"X 4" box at the base of each vertical. I have not checked Google yet, but did check the ARRL Antenna Handbook and my latest ON4UN Topband Book but very little was mentioned. I guess I could try to use smaller wire on a slightly larger diameter form to increase the resistance and impedance... Any suggestions? Ray, N6VR/W7YA On Thu, Jul 15, 2021, 5:40 PM John Jolly <[email protected]> wrote: > HI, Ray - > > If you do a Google search on 'static discharge bleeders' or something like > that, there should be a ton of information show-up. Years ago I saw > inductors, resistors , diodes and combinations of those used on mobile and > fixed antennas. Gas-discharge devices are a newer option and available > from various vendors. With inductors, apparently they need to present a > high resistance at rf frequency but a dc-short at dc - examples and > discussions are online. Phil Salax has at least one article about how he > made his. 100uH seems to be a frequently listed value. > > 73, > > John, N7NWL > > On Thu, Jul 15, 2021 at 4:22 PM Raymond Benny <[email protected]> wrote: > >> Here in Arizona, we are in our monsoon season, lots of thunder, lightning >> and rain. I have built two inductors to put across the base of my homebrew >> phased 80m verticals feed point. I have a small 4" X 4" weatherproof box >> at the base with a K9YC CMC enclosed and wondering if the inductors are >> adequate. They are 3 1/2" long, 3/4" diameter, 20ga enamel copper wire, >> with an estimated 93 turns. I have used several inductor calculators, they >> say between 32 and 34 uH. >> >> Is these adequate for use as a static discharge coil that will not affect >> the vertical antenna loading or performance? >> >> Thanks for your input. >> >> Ray, >> N6VR/W7YA >> _________________ >> Searchable Archives: http://www.contesting.com/_topband - Topband >> Reflector >> > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
