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Metal Detecting Discussions => Metal Detecting Discussions => Topic started by: silky on January 31, 2010, 06:27:00 PM



Title: frozen ground / depth loss
Post by: silky on January 31, 2010, 06:27:00 PM
Could some of our experianced detectorist tell me if frozen ground can cause depth loss  .


Title: Re: frozen ground / depth loss
Post by: handyman [Alan} on January 31, 2010, 07:03:27 PM
dunno about depth loss, but it certainly made certain male appendages shrink!


Title: Re: frozen ground / depth loss
Post by: Chef Geoff on January 31, 2010, 08:15:14 PM
Hi Silky, sorry to say no, in fact on paper it should improve depth. Conduction of any sort improves the nearer you get to absolute zero.


Title: Re: frozen ground / depth loss
Post by: kaister on January 31, 2010, 10:40:53 PM
I dont have that much expierence with this, but i have noticed on the few times that i have detected on frozen ground that the signals never seem to be as clear. I think it has a effect when you are detecting through a layer of ice, i.e the top 2 inches is frozen. its seems to confuse my machine, similar to detecting on a freshly ploghed feild with lots of air pockets. I think we all know detecteting in damp soil gives the best signals, i believe its due to continous conductivity, but a iced layer is like detecting through a wall of water. I suspect that the opimum temperature for detecting is 4 degrees celcius on wet ground because water is at its most dense at that temperature.


Title: Re: frozen ground / depth loss
Post by: Titus Pullo on January 31, 2010, 11:22:29 PM
Hi,
Me and my detecting friends are convinced that frozen ground appears to give us better results when it comes to more depth. (ie) we were finding tiny hammered and cut halfs at great depths when the ground was frozen. This was when the field (stubble) was frozen solid but relatively dry. We noticed that when the field thawed out and became saturated with water our finds rate dropped slightly. We all use exp 11 and Exp SE machines and were discussing this amongst ourselves last week.
Regards
Titus Pullo


Title: Re: frozen ground / depth loss
Post by: waltonbasinman on February 01, 2010, 05:39:07 PM
Interesting thoughts there as I thought yesterday at the rally although I found no worthwhile finds I found more frequent and smaller finds.


Title: Re: frozen ground / depth loss
Post by: nfl on February 02, 2010, 08:10:58 PM
i also think that frozen ground may improve depth as the top layer is more compact when the ground is slightly frozen which makes for better signals, cheers for the lift to and from chepstow silky a brilliant day.


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