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 1.Geiger Counter World Map(www.GMCmap.com)
 Radiation Alert!
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hugh@connellys.org

USA
5 Posts

Posted - 10/22/2022 :  09:27:17  Show Profile  Reply with Quote
My readings are really high should I be worried? Or does my unit need calibration?

HughConn
Reply #1

EmfDev

2188 Posts

Posted - 10/25/2022 :  10:17:53  Show Profile  Reply with Quote
Hi Hugh, can you please verify the readings?
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Reply #2

hugh@connellys.org

USA
5 Posts

Posted - 10/27/2022 :  18:11:34  Show Profile  Reply with Quote
61 sv/h

HughConn
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Reply #3

hugh@connellys.org

USA
5 Posts

Posted - 10/27/2022 :  18:14:17  Show Profile  Reply with Quote
search wharton brewing in New Jersey, USA

HughConn
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Reply #4

EmfDev

2188 Posts

Posted - 10/31/2022 :  10:04:49  Show Profile  Reply with Quote
Hi Hugh, have you tried doing a factory reset on the device?
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Reply #5

hugh@connellys.org

USA
5 Posts

Posted - 11/01/2022 :  02:02:30  Show Profile  Reply with Quote
quote:
Originally posted by EmfDev

Hi Hugh, have you tried doing a factory reset on the device?



How do I do that?

HughConn
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Reply #6

EmfDev

2188 Posts

Posted - 11/03/2022 :  09:26:15  Show Profile  Reply with Quote
Main Menu -> Init Setup -> Factory Reset -> Yes -> Wait for popup.
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Reply #7

hugh@connellys.org

USA
5 Posts

Posted - 11/03/2022 :  18:25:12  Show Profile  Reply with Quote
quote:
Originally posted by EmfDev

Main Menu -> Init Setup -> Factory Reset -> Yes -> Wait for popup.

. Still showing high radiation

HughConn
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Reply #8

GBG12

Canada
101 Posts

Posted - 11/06/2022 :  18:45:38  Show Profile  Reply with Quote
The first thing is to rule out real radiation to put your mind at ease. There are nearby public radiation sites that show no unusal readings:
- a sensor near Allentown on this (GCMaps) site currently shows 39 for a GMC-600+, not unusual
- a sensor in Florence NJ on Radmon.org shows nothing unusual
- the EPA sites in Edison NJ and Philadelphia show nothing unusual

A local source may be present, but without another GM tube to validate yours with, it's harder to trust your readings. Is there any variation as you move the unit around indoors and outdoors? Does it show a range of values above and below the average? These should fit a poisson statistical curve as stated in other forum topics. A known radioactive source such as Uranium beads should cause a reaction (if your counter is sensitive enough, Potassium salt can be used).

Edited by - GBG12 on 11/06/2022 18:46:54
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Reply #9

EmfDev

2188 Posts

Posted - 11/08/2022 :  16:09:25  Show Profile  Reply with Quote
Hi hugh, you may check other areas and see if the readings are still high.
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