well sand as in salt water beach sand or other high mineral sand ?---if so know that your most likely going to have to adjust your sen /power level downward a bit so that the machine will not pick up the background minerals in the saltwater beach / highly mineralized sand area --it will read as a wall of metal and freak the machine out (just drop it slowly until the machine becomes "stable")-- I live in florida so I know about this issue it can also be a problem in areas with lots of minerals in the soil as well ) -- what exactly are you after --and what mineral conditions is the soil? I have used my delta 4000 for quite some time and its number IDing for the most part is solid as per the chart
many folks in a vain attempt to gain "extra depth" run way to much power , the ground can only accept as much signal as the mineral level will allow it to --- much like rain water --once the ground is as "full" as it can stand ---the excess rain water just pools on the surface ..the same with signal --the ground can only "take" so much --the rest is just causes feedback hurting rather than helping.. the term "ground balanced" means your outputting all the signal the ground can take in but no more than that...[/QUOTE]
Hi ivan
Your second paragraph provides an excellent explanation of the reaction between ground mineralization and the control box power setting !
Thanks,
ToddB64