radmon.org to-do list 25/9/2018

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3 years 11 months ago - 3 years 11 months ago #4085 by mw0uzo
Corium. Fire up an serial terminal program on your counter and post a few lines of output. Bert490 could be on to something! If he's right I should be able to get it working right fairly easily.
Last edit: 3 years 11 months ago by mw0uzo.

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3 years 11 months ago #4086 by corium
Hi mw0uzo
JPGs and txt is here
http://www.mediafire.com/file/c09s5bso18a1bq8/RM+0.43+++Radiatex+MRD2+4sec+raw+mode.rar

Fukushima reactors HQ photos http://corium.cba.pl & More very important pictures http://korium.wex.pl/RadiationPics.html

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3 years 11 months ago #4088 by mw0uzo
It is sensible to set the geiger counter counting period similar to RadLog. So set the geiger counter to 60 seconds. 30 seconds also works great, 4 seconds just seems wrong.

Is there a specific purpose for choosing 4 second counting period? 30s or 60s is a lot more practical, and stops spurious warnings and alerts from quick successions of detections.

I could add a tickbox to disable 0 CPM warnings?

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3 years 11 months ago #4089 by corium
Make alert when GC sending zeros longer than 30 seconds.

Fukushima reactors HQ photos http://corium.cba.pl & More very important pictures http://korium.wex.pl/RadiationPics.html

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3 years 11 months ago #4090 by Bert490
I agree that a 4 second sample is much too fast for a valid radiation reading. The inherent random behavior of radiation means there will always be bursts, and you do not want a logging type of detector generating an alarm for 100 CPM due to 5 clicks in 4 seconds; that happens often enough with normal background levels. Fast reaction might be needed for locating a point source with a handheld portable unit, where audible clicks or a faster time setting like 4 seconds lets the alarm come on to locate something, but to actually measure the true radiation level requires a longer sample time at the same location.

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3 years 11 months ago #4091 by Juzzie
"....100 CPM due to 5 clicks in 4 seconds." That wont happen if the data being sent is the actual 1 minute moving average gathered at 4 second intervals.
Still, I think 4 second updates makes for an unnecessarily data heavy chart for long term background monitoring.

Owner and operator of "southofhobart" monitoring stations.

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