SV: [AMPS] Power Meter Readings Question

[Hans Christoffer Kise]

Mismatch (reflections, vswr, etc.) will upset your measurment.
A power meter, thruline or absorption, will only measure up to it's specifications if it is in a "vswr free eviroment".

-1tca/ Hans


Hi all,

Got a question for you about power meter readings.

I have a Daiwa NS-660PA cross hair power meter.  I have taken everyone's 
advice and eliminated my antenna tuner for the time being.  I am just 
loading the PA directly into my antennas - matched or unmatched.

How accurate is the power reading on my meter?  The reason I ask is that 
with a tuner in line by fiddling with the controls, you can change the 
value of your forward power even though you've done nothing to increase 
output from the amp.  

Also, why would loading into my beam give me much better efficiency than 
when loading into my G5RV or vertical?  I get much more power out when 
loading into my beam than into the other antennas.

Do these cross-hair meters read correctly when the SWR is not under 2:1?

73,

Jon
KE9NA


-------------------------------------
Jon Ogden
KE9NA

http://www.qsl.net/ke9na    <--- CHECK IT OUT!  It's been updated!!!!!


"A life lived in fear is a life half lived."


--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm


--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm