I picked up this BH 202 at a rummage sale this weekend for $35. Couldn't believe it was so cheap. It is missing the arm cup but hey I can deal with that. I bought it for my 11 y/o because he is a small fellow and this thing is very light. Got her home, cleaned it up, and brought it out to the test garden that has been planted for about 4 years now. I was impressed with the depth (although had the sens turned all the way up) but still very good lowering the sens. I have downloaded the manual. Seems simple enough. Now to my question. In disc mode (@ 10 o'clock) swinging over a Q about 5-6" deep all I can get is the lower of the 3 tones with the ID lingering from pull tab to zinc penny. Now as I raise the coil stil swinging getting the low tone I can get one or two highs right before I lose the signal. This happens with all of the coins I have buried. Coil cable is in good shape as well as the plug into the box. Although the detector seems to have been taken care of I can't rule out someone maybe dropping it or whatever else. You think maybe needs to be recalibrated? If that is the case I hear First TX has excellent customer service as I've been reading in other posts. What would something like this cost?
Thanks for any input
Thanks for any input