[AMPS] Good Meter vs CRT was Hot wire....

[Rich Measures]

.......
>I say this is still flawed! Not a good enough answer. Everything has
>to be accounted for Tom. This isn't as easy as the IRS's EZ-FORM.
>
€  Yeah, Tom's "explanation" came up short on science.  However, you 
gotta know when to fold.  Arguing with Tom is sorta like arguing with a 
'gator.  

>>Outgoing power readings include both forward and reflected power 
>>that was "bounced" off the PA output port. 
>
>And I thought it checked into the tankard to hang out and have a few...
>But I beleive it bounced off of there for now.  Somehow this has
>a familar ring to it...
>
€  Indeed.  

>>That's why directional coupler wattmeters read higher when the load has
>a 
>>high SWR and the transmitter is matched to the new feedline impedance. 
>>Reverse power reads only the reflected power, so you can simply subtract
>
>>the reflected power out from the forward reading and you have true 
>>forward power.
>
>Within 8% with a Bird 4314B. All measurements. So you could have up to
>16%
>total error in a >1:3.0:1v.s.w.r., with two different peak reading
>values.  And thats before we even consider all the variables you missed
>that error you. 
>
>It's got be real love Tom or no Love at all! The F.C.C. isn't interested
>in your approximations. And personally neither am I. 1500 watts P.E.P.
>no 1515w P.E.P. (1%) at the antenna feed point.  The most we could run
>with your methods under worse case is 1260w P.E.P. to be safe.
>And under the best conditions we could run at 1620w P.E.P. pushing 
>limits and safely only 1380w P.E.P.
>
>I side with Rich and my amp manufacture aswell as my better judgement.
>And I don't really care if you want to attach a 50ohm load instead
>of the antenna it makes no difference. Your still way off.
>
€  The FCC inspected a station in Daly City, CA.  The measured power on a 
Bird was 1700w PEP.  The FCC did not write him up.   ,  ,  ,   Can you 
imagine the highway patrol giving a ticket for 17mph when the speed limit 
is 15mph?  
.  
-  cheers, Jerry.  


Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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