Inexpensive Homebrew QRP

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From: Bob Berlyn (bob.berlyn@chowda.sbs.com)
Date: Fri Dec 03 1993 - 06:50:00 EST


DQ>From: dquagliana@attmail.com (os2user@vmdoug.utsd.att.com)
DQ>Subject: Inexpensive Homebrew QRP Wattmeters
DQ>Date: 1 Dec 93 19:47:06 GMT
DQ>To: bob.berlyn@chowda.sbs.com
DQ>Message-Id: <9312011948.AA1659@vmdoug.utsd.att.com>

DQ>I'm looking to build a simple QRP wattmeter.

DQ>I'd like to hear comments from the group on any homebrew wattmeters that you
DQ>use. It should be simple, easy to build, and shouldn't require any fancy
DQ>equipment to get it calibrated. (Cheap is also a good characteristic :-)) )

DQ>Ideas? I'm listening.
DQ>Douglas Quagliana KA2UPW
-=--------------------------------------
Doug,
I built the SIMPLE AND ACCURATE DIRECTIONAL WATTMETER from the 1993
Handbook. I found the project to be not very expensive, It is however
accurate and its a directional wattmeter. You really have to etch a PCB
for the project, but if your really aganst that I.m sure you could get
around it.

The circuit is small enough to be included into a transmitter project,
thats what I want to do eventually.I found the Wattmeter easy to build,
and I am new at Home brewing. The only problem I hade was winding the T2
and T3 toriods? with the proper phasing, but ater I figured that out it
worked great, and still does.

Bob Berlyn N1PWU Bob.Berlyn@chowda.sbs.com

 * SLMR 2.1a * --T-A+G-L-I+N-E--+M-E-A+S-U-R+I-N-G+--G-A+U-G-E--


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