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Registered Member #1938
Joined: Sun Jan 25 2009, 12:44PM
Location: Romania
Posts: 699
Hi Andre / all,
Well, the problem in my case was a missing capacitor, the so called "compensation capacitor". I presented all the details here: So it was a technical issue. Unless of cosmic provenience, I expect to see higher radiation readings as a gradually increasing curve.
On a different topic, 4 new stations went online, and with them the second case of higher natural background radiation, after Česká Čermná has been identified in Helsinki, Finland: Full article here:
My assumption is we are talking about higher uranium/thorium content in the soil. The network seems to do a good job at pinpointing those. I wonder how long until they will come after me. I also can't help to wonder how bad must it be for people to leave in such areas, where radon concentration must be higher as well.
Registered Member #1403
Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
I have had two abnormal readings, both happened doing thunder storms, but it does not always happen if there is a thunder storm.
We have discussed on the IRC chat if this is merely electrical field interference or some of the gamma radiation from TGFs make it backwards to earth. Much more instrumentation, battery supply and more monitors in different shielding would be needed to rule one or the other out.
Registered Member #3215
Joined: Sun Sept 19 2010, 08:42PM
Location:
Posts: 780
when thunder strikes occur, isn't there a charge buildup in the area around it which could potentially modify the sensitivity of the tube and/or play with the pulse detection?
would parasitics travel in cables? there are things to sort out with earthing, STP cable instead of UTP, etc... no?
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059
Possible. I know that Tesla Coils can affect GM counters and have seen this first hand.
Could it be RF interference from a microwave with a cracked door seal? I've had problems like this before with an old MW that reliably nuked the WiFi when on and also strangely enough with a videosender sold as a "SCART rebroadcaster" which even crashed a smartphone when on.
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Global Radiation monitoring system
