LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #24   Report Post  
Old August 5th 11, 09:21 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Jul 2011
Posts: 117
Default Using speaker wire for a dipole


"Jim Lux" wrote in message
...

Fusing current is remarkably high for small conductors in free air, even
for 100% duty cycle.

AWG30 (0.01" diameter) = about 10 Amps (Preece equation)

Scales as 1.5 power..
so, going to AWG 20 (.0316") - about 50 amps..

Considering an inverted V dipole with feedpoint Z of 50 ohms, at 1kW, the
current is about 5 amps...

So running that legal limit amp with a brick on the key to your AWG30
stealth antenna won't melt it. (it probably will get pretty warm.. and
corona at the ends might be spectacular)


Thank you very much. It's exactly what I was wondering about.

"Sal"


 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dipole Antenna {Doublet Aerial} make from Power "Zip Cord" or Speaker Wire and . . . More 'About' the Doublet Antenna RHF Shortwave 1 February 22nd 07 04:44 AM
Newbie with a wire dipole killdagger CB 27 December 17th 04 11:36 PM
Wire antenna - dipole vs inverted vee Larry Gauthier \(K8UT\) Antenna 2 May 5th 04 05:45 PM
Receiver dipole vs 23 ft wire for HF Ken Antenna 2 April 30th 04 04:41 AM
Long wire vs. G5RV/dipole John Shortwave 10 March 5th 04 04:16 AM


All times are GMT +1. The time now is 10:23 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017