Thursday, February 26, 2015

K7AGE builds KB3VZL's Field Strength Meter

A neat little project...



Summary:
"I follow Richard's, KB3VZL, February 2015 QST (page 71) article about building a field strength meter into a DVM. He built the circuit to fit inside a Harbor Freight digital volt meter. You can get these free at Harbor Freight if you have the right coupons.

I also use my new ISO-TIP battery powered soldering iron.
http://www.iso-tip.com 
Three capacitors, two diodes and a pot is all that is needed. Build this on a small perf board and it fits easily inside the meter. 
Parts:
0.05 uF Cap
470 pF Cap
0.01 Cap
1N34 Diodes, you need 2
50K trim pot
hunk of perf board
switch
connector for antenna"

4 comments:

  1. It's about time you started to build/mod something with electronics, We all remember how well you did with the radio and knob tear down a few years ago :)
    http://www.brickolore.com/2013/06/a-theoretical-question.html

    Thanks for posting the video. Very informative..

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  2. Video is clearly! I tend to equip this appliance. Thanks your post! Please share with me if you have new articles!

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  3. Your video is very clearly and detail about this equip. I agree: three capacitors, two diodes and a pot is all that is needed. Build this on a small perf board and it fits easily inside the meter.

    ReplyDelete