What I don't understand is why would you use more components than needed. Why a capacitor (possibly vacuum). What is wrong in using a hairpin which also DC shorts the vertical to ground. A combination of hairpin size and top loading will give you 1:1 at your favourite 1.825 or anywhere else. Perhaps WX0B's article needs a reprint in the NCJ. It really is simple just a few microhenries of inductance and you are done. 73 Clive GM3POI
-----Original Message----- From: Topband [mailto:[email protected]] On Behalf Of Don Kirk Sent: 19 September 2018 17:29 To: Herbert Schoenbohm Cc: topband; [email protected] Subject: Re: Topband: Toploaded vertical - SWR > > Herb (KV4FZ) mentioned an L network, and that is what I always use. Very > simple, and you just plug you're measured complex impedance values (at the > frequency you want to be resonant) into one of the many online L network > calculators to determine the amount of inductance and capacitance required > for the L network. I normally just wind my own coil for the inductance, > and use high voltage silver mica caps for the capacitor. > _________________ Topband Reflector Archives - http://www.contesting.com/_topband --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus _________________ Topband Reflector Archives - http://www.contesting.com/_topband
