From: Mark Gilger 
Subject: Re: [drakelist] W4 peak reading


Mike,
Here is a kit you can build for that 
purpose.  http://home.att.net/~hi-res/Kits/kits.html

Mark, WB0IQK

At 11:11 PM 6/12/03 -0400, Rick Lutzinger wrote:

>Mike,
>
>Most PEP reading watt meters for amateur use use "sample and hold" 
>circuits usually consisting of an op amp and support circuitry.  The cap 
>idea is not very accurate or mathematically correct for a true PEP report.
>
>There is available thru a source called HI-RES Commnications, Inc., a kit 
>that can be built and added to the W4 or other meters to allow it to 
>report PEP output.  Go to "info{at}hi-rescom.com" for info.  I
have built and 
>installed several of these and they work well and they are inexpensive.
>
>Rick KD6ZR
>
>
>At 12:55 AM 6/13/03 +0000, mike hunton wrote:
>
>>Can anyone help me to "properly" modify my W4 wattmeter
to read "PEP"??
>>
>>I have seen references to peak reading W4's and would like to modify mine 
>>to do the same.
>>
>>I wouldn't think there'd be much to it...just a cap to hold peak voltage 
>>long enough for the meter movement to respond before the voltage decays 
>>away through the meter.
>>
>>
>>TNX es 73's
>>Mike Hunton, K9QB
>>
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