View Single Post
  #3   Report Post  
Old January 2nd 07, 12:08 AM posted to rec.radio.amateur.antenna
Cecil Moore Cecil Moore is offline
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 1,614
Default Welding Rod J-Pole Possible?

Jimmie D wrote:
I made one of these sleeve antennas for 10M with the folded back shield,
put a KW on it and it arced through the black vinyl.


It's a standing wave antenna. The voltage at the end
of the shield is approximately 20 times the voltage
at the feedpoint. For a KW, that's more than 5 kV,
too much for ordinary coax.
--
73, Cecil http://www.w5dxp.com