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 locating a 300 e outdoors 
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Joined: Thu Jan 09, 2014 9:58 am
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Just set up my 300 e about 20 mile east of Petrified Forest, ArizonaLat: N 34 ° 35 ' 8 '' Lon: W 109 ° 38 ' 49 '' Have only noticed a high of 40, and a low of 20. whereas I have seen nearest stations giving readings of 100+ . The unit is outside, is there a specific orientation for the unit to give an acceptable reading? or am I just in a calm location? :)


Tue Jan 14, 2014 4:45 pm
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Location: Arkansas
That other unit is EPA radnet Gamma. Different equipment so different readings.
Harlan


Tue Jan 14, 2014 4:59 pm
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EB5A61F3 wrote:
Just set up my 300 e about 20 mile east of Petrified Forest, ArizonaLat: N 34 ° 35 ' 8 '' Lon: W 109 ° 38 ' 49 '' Have only noticed a high of 40, and a low of 20. whereas I have seen nearest stations giving readings of 100+ . The unit is outside, is there a specific orientation for the unit to give an acceptable reading? or am I just in a calm location? :)


:?: Could the stations you speak of 100+ CPM start with the station ID of 4: or 5:

If so, these are EPA sites and use equipment with better sensitivity than you, therefore the will have higher CPM. Compare patterns (rise & fall) between stations not CPM. Even if you compare two stations with like equipment, the location has an effect on the CPM.

_________________
MY OUTSIDE RADIATION MONITORING STATION:
South Beloit, Illinois - GMC200 Outside on HEPA air purifier, ground level, facing West.
http://netc.com/chart/view.php?n=1%3AEB5A139C


Tue Jan 14, 2014 5:02 pm
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Joined: Thu Jan 09, 2014 9:58 am
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Yes they are 4 and 5 the power of 10 was a major reason foe question . Also noticed the difference from windoe to outside was only 5 counts. may just set this inside to preserve it


Tue Jan 14, 2014 5:13 pm
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try the unit on an air filter, that is what the EPA uses. Outside, if inside it may pick up radon.


Tue Jan 14, 2014 8:29 pm
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