hi everbody,my ortovox d3 dont seem to be giving an acurate reading,even tried it with a bellman and flint collar its reading 10 metres out with both collars,its letting me know when its above the terrier it read 1.9 when we dug down to the terrier it was no more than 0.8,has anyone else experienced this,the box was also reading from 12m to 40m within one second,cheers