LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #11   Report Post  
Old December 21st 05, 01:30 AM posted to rec.radio.amateur.antenna
Reg Edwards
 
Posts: n/a
Default Antenna reception theory


"Richard Harrison" wrote in message
...
Richard Clark wrote:
"You make a loop."

There is a difference. The small whip has a high capacitive

reactance.
The small loop has a high inductive reacvtance. Both have low

radiation
resistance. But, the loop is more often used to determine EM field
strength. You just need the right "fudge factor" to convert antenna
voltage tto field strength or vice versa.

Best regards, Richard Harrison, KB5WZI

=====================================

For the very last time I will repeat my question :-

"What is the voltage measured between the bottom end of a 1 metre
vertical antenna and ground when the field strength is 1 volt per
metre.

The height (length) of the antenna is much less than 1/4-wavelength.
The bottom end of the antenna is immediately above the ground. The
ground is assumed perfect. The field is vertically polarised.

Frequency, loops, reactance, radiation resistance do not enter into
the argument. No other information is needed.

Terman, Kraus and Balanis' bibles provide answers to a different
question in which I am not interested. Mere mention of these learned
gentlemen only confuses the issue.

The answer is entirely fundamental to e.m. radiation and reception.

All I need is a number of volts. What is it please?
----
Reg, G4FGQ.


 
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
Inverted ground plane antenna: compared with normal GP and low dipole. Serge Stroobandt, ON4BAA Antenna 8 February 24th 11 11:22 PM
significance of feedline orientation Brian Shortwave 6 October 22nd 04 02:43 AM
Question for better antenna mavens than I Tony Meloche Shortwave 7 October 28th 03 10:16 AM
QST Article: An Easy to Build, Dual-Band Collinear Antenna Serge Stroobandt, ON4BAA Antenna 12 October 16th 03 08:44 PM
Outdoor Scanner antenna and eventually a reference to SW reception Soliloquy Shortwave 2 September 29th 03 05:04 PM


All times are GMT +1. The time now is 11:36 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