LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #10   Report Post  
Old December 14th 03, 01:39 AM
Roy Lewallen
 
Posts: n/a
Default

It's too bad it isn't that simple.

A 1V/m field doesn't result in one volt at the feedpoint of a perfectly
matched one meter dipole or monopole, and the value it does induce
depends on the quality of the impedance match as well as the fraction of
a wavelength the one meter antenna length represents. And, if one volt
does appear at the feedpoint, it's very unlikely that a simple circuit
will measure it as one volt.

Probably best to stick with your $1.5 kilobuck meter if you really want
to measure field strength.

Roy Lewallen, W7EL

Active8 wrote:
On 13 Dec 2003 03:50:41 -0800, said...

What you are descrbing is a "signal sniffer", not a signal strength meter.


Who are you replying to? Paul did not say Signal Stength Meter, but
the guy you replied to kinda hints at it when he mentions power
level.

I would have to say that my 1GHz Signal Level Meter, which cost
$1500 would be the better than a relative field strength meter, but
if he measures say, 1V with his Tx off and 2V with it on, then
that's 1V and if his Rx antenna is a 1m dipole, that's 1V/m.

Mike




 
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 coil, EZNEC - helix Yuri Blanarovich Antenna 334 November 9th 04 05:45 PM
Why doesn't maximum field strength and minimum SWR occur at the same frequency? nathan Antenna 17 November 21st 03 12:34 AM
Modifying Lafayette SWR & Field Strength meter? Ken Equipment 6 September 21st 03 07:33 PM
How was antenna formula for uV/Meter Derived? Roy Lewallen Antenna 21 July 31st 03 09:04 AM


All times are GMT +1. The time now is 06:54 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