LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #20   Report Post  
Old May 15th 05, 03:38 PM
Cecil Moore
 
Posts: n/a
Default

Reg Edwards wrote:
All the so-called SWR meter tells you is whether or not the
transmitter is being loaded with 50 ohms.

This may be a useful thing to know. But it is NOT SWR. Where is the
line on which the SWR is supposed to be measured?


If the reflected power on the line between the transmitter and
the meter equals zero:

SWR = [SQRT(Pf)+SQRT(Pr)]/[SQRT(Pf)-SQRT(Pr)]

SWR = [SQRT(Pf)+0]/[SQRT(Pf)-0] = 1:1
--
73, Cecil http://www.qsl.net/w5dxp


----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups
---= East/West-Coast Server Farms - Total Privacy via Encryption =---


 
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
QST Article: An Easy to Build, Dual-Band Collinear Antenna Serge Stroobandt, ON4BAA Antenna 12 October 16th 03 07:44 PM
Length of Coax Affecting Incident Power to Meter? Dr. Slick Antenna 140 August 18th 03 08:17 PM
Variable stub Alfred Lorona Antenna 3 July 30th 03 12:37 AM
50 Ohms "Real Resistive" impedance a Misnomer? Dr. Slick Antenna 255 July 29th 03 11:24 PM
Conservation of Energy Richard Harrison Antenna 34 July 14th 03 11:19 PM


All times are GMT +1. The time now is 09:51 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