From my post to FB groups
​Well, here’s another circuit that’s doubtful that it works. It looks to me that the 22n capacitor bypasses the amplified RF to ground so the diodes can’t rectify any RF. If there was a 1 to 10k resistor between the diodes and 22n capacitor, then I could be persuaded that the diodes would detect the RF.
http://www.talkingelectronics.com/projects/FieldStrengthMeterMkl/images/FieldStrengthMeterMkICct.gif
I’ve received a lot of comments, so the reader should check them on FB.
