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I have been thinking of building such a device for quite a long time and now I found some spare time to do it. It is based on the design from this site
Well I done some modifications to it, but in general it is what you see on the shematics. About how well works - weeeel we have tunderstorms here like once a month or two soo I will have to wait and see. For now it is sensible enough to pic the EMI from a lighter (those with the piezeelectric igniter) 10sm (4inch) away from the antenna.
well I don't think that it will work well because the amount of energy it will detect will be BIG and I think it will send the circuit crazy. Please correct me if I am wrong here.
Registered Member #1403
Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
There is alot more lightning strikes that you would think there is, just take a look at the Danish Meteorological Institute lightning map here:
Right now there isnt really alot of data there, but usually when I look at it, I am surprised by the amounth of strikes near where I live without there have been a storm.
Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
An AM radio by itself is a good lightning detector. Just find an empty frequency and listen for the strikes. You can even couple to a detector if you'd like.
An AM radio by itself is a good lightning detector. Just find an empty frequency and listen for the strikes. You can even couple to a detector if you'd like.
yes indeed Most of the people building those detectors tune the LC on the antena at araound 300khz (the VLF). So tunne your AM receiver to the lowest frequency possible - and you have a pretty good lightning detector. But hey - it was a fun project
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Lightning detector
