LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #11   Report Post  
Old March 21st 06, 02:04 PM posted to rec.radio.amateur.antenna
 
Posts: n/a
Default Current through coils

Cecil Moore wrote:

If you are technically correct, why are you so technically
silent on the subject?


I'm not silent.

I think I've done a good job of explaining things, and I've made
measurements and posted results.

At least a dozen of my technical questions have gone
unanswered by being ignored. Lot's of readers have
noticed and commented in emails to me.


So what?

1.) I told you weeks ago I'm too busy working right now to get deeply
involved in this.

2.) When measurements are made, you dismiss them as "measuring current
in a system with standing waves".

If you will repeat your measurements with 1/4WL added
to the top of the base-loaded mobile antenna, you will
start to understand the physics involved. The current
taper through a coil depends upon where in the standing
wave environment that the coil is installed.


Then why can I measure a fixed inductor location in a dfixed antenna,
and range from no taper at all in current to just under 1/3 reduction
in current? Does you standing wave model explain this very repeatable
measurement?

http://www.w8ji.com/mobile_antenna_c...ts_at_w8ji.htm

The lumped-circuit analysis fails for the typical
75m amateur radio mobile antenna.


I disagree. Unless we want to say so does the standing wave model.

The antenna can be modelled as a series of lumped inductors with
capacitance to the outside world just as well as any other method.

73 Tom

 
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
Current in Loading Coils Cecil Moore Antenna 2 March 5th 06 08:26 PM
FCC: Broadband Power Line Systems Paul Policy 0 January 10th 05 05:41 PM
FS: sma-to-bnc custom fit rubber covered antenna adapter Stephen G. Gulyas Scanner 17 December 7th 04 06:42 PM
Current in antenna loading coils controversy (*sigh*) Roy Lewallen Antenna 25 January 15th 04 09:11 PM
Current in antenna loading coils controversy Yuri Blanarovich Antenna 454 December 12th 03 03:39 PM


All times are GMT +1. The time now is 03:45 AM.

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