NOOO, IT'S NOT!!!!
At least Heathkit had on the market a dual function wattmeter (published
also in QST)and MFJ has also at least one model- not a tuner with
SWR/Wattmeter included- but a stand alone meter that can also measure
average or peak power. The trick is in selecting the right time constants
for the averaging circuits: long for peak readings, short for average
readings. Bad thing is that selection has to take into account the
mechanical characteristics of the meter movement!
Alex 4Z5KS
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of John.
Sent: Friday, October 19, 2007 4:29 AM
To: Larry
Cc: AMPS
Subject: Re: [Amps] PEP Wattmeters
http://wc6w.50webs.com/wc6waccy/index.html?fr40.html
Is this what you are looking for?
de John KØCQW
Larry wrote:
>My latest project is a custom wattmeter setup for 5 VHF/UHF bands using
>Bird components. (5 line sections, one meter).
>
>I thought I might as well make it a peak reading meter as long as I was
>building it up from scratch but being lazy I though I'd see what others
>have done for a peak detector.
>
>After a half hour or so of web searching, I failed to find a single
>circuit published. The known good modern meters all seem to use
>microcontrollers or some such. Analog seems to be obsolete, just like me.
>
>Can someone point me to a known good circuit or am I going to have to
>sit down with my Linear Applications Handbook and actually design
something?
>
>Thanks & 73,
>
>Larry
>
>
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