All Forums  GQ Electronics Forums  2.GQ Geiger Muller Counter  gmc-300 very high readings

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by jimehall2[/i] [br]I have only had my gmc-300 about a week. It runs away with up over 3000 to . 9000 cpm for hours at a time. I have adjusted r25 down to its lower limit (173) volts and reseated the tube and now its running about 20 cpm, which compares to about 14 cpm on my rad scanner-500 which I have had for years. atached is the .bin file from my gmc-300 showing the problem [b]Download Attachment:[/b] [url="http://www.gqelectronicsllc.com/forum/uploaded/jimehall2/201312612200_20130126_12_56_14.bin"][img]icon_paperclip.gif[/img] 20130126_12_56_14.bin[/url][br]66.23 KB [/quote]    Insert an Image File Check here to include your profile signature.