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Old 17th Feb 2019, 4:24 am   #28
IsquaredR
Tetrode
 
Join Date: Apr 2017
Location: Minocqua, Wisconsin, USA.
Posts: 86
Default Re: Looking to build RF detector probe for low frequency

Quote:
Originally Posted by IsquaredR View Post
. . . and will certainly update this thread with my results and will include photos of my finished probe.
I've had ample time to familiarize myself with the Haig RF detector probe. It does a nice job detecting modulation/waveforms from an RF signal and is amply sensitive at low IF levels. My only complaint is that it does indeed have a tendency to skew the oscilloscope display with my hand capacity. Perhaps I did make a mistake by using a metal box even though its metal was isolated from the detector circuit. Now I am toying with the idea of removing the probe tip, replacing it with a BNC connector and using a shielded normal 10X oscilloscope probe. The detector could then lay at rest on the bench without hand capacity in proximity to it. I am also considering building a second Haig but, this time, installing it in a plastic box instead of a metal box.
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