Thread: Vincent antenna
View Single Post
  #226   Report Post  
Old December 2nd 07, 07:28 PM posted to rec.radio.amateur.antenna
Richard Clark Richard Clark is offline
external usenet poster
  
First recorded activity by RadioBanter: Jul 2006
Posts: 2,951
Default Loading Coils; was : Vincent antenna
On Sun, 2 Dec 2007 00:46:54 -0800 (PST), wrote:

You actually need more wire than the equal 1/4 wave whip.
Say a monopole at 3.8 mhz is 61.57 ft tall.
The appx 9.84 ft whip base loaded needs 63.35 ft of wire.
The center load needs 88.32 ft of wire.
The 2/3 load needs 103.97 ft of wire.

Hi Mark,

You have proven through a very simple logic that Cecil's fixed angular
specification for a coil (a la the prostitution of Corum) fails
utterly. OTHERWISE, one coil would have satisfied all placements
along the length of the short monopole!

A very, very simple solution that absolutely rolls over these
narcissistic exercises in creating spreadsheets of proofs.

73's
Richard Clark, KB7QHC
Reply With QuoteReply With Quote