Thread: Dual-Z0 Stubs
View Single Post
  #145   Report Post  
Old May 9th 09, 10:45 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
external usenet poster
 
First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default Dual-Z0 Stubs

Tom Donaly wrote:
I put the dimensions ... into ON4AA's
calculator and got a self resonant number of 7.4137 Mhz. When I measured
it, though, it was 8.93 Mhz. Where did I go wrong?


The self resonant frequency of a coil varies wildly
with the ground provided. What ground did you provide?
Perfect? Average? None?
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com