instability

[Anonymous]

While hunting there are times when the threshold on my Explorer II is very irratic and noisy. The target I.D. screen crosshair jumps all over the place with multiple tones. This normally happens in park areas,especially around trees and power lines. I push the noise reduction button, adjust the sensitivity,iron mask, etc. but the unit still chatters. I thought the noise reduction button was suppose to select a non-interfering frequency?
Another issue is that when I put the unit on the ground to retrieve a target, the unit chatters a lot. When I stand up and hunt again,it becomes stable again. I thought the unit may have been in the pinpoint mode, but I verified this was not the case.
Comments appreciated,
Jim

 

[Anonymous]

My exp kept doing that at a spot near high power lines, after several trips to that spot and constant eratic sound and meter movement even after frequency adjustment I discovered that when I took it off auto and went to manual it became smooth and would stay that way up to 18 or so. I think it had somthing to do with the high power lines combined with power lines in the ground running to light poles auto was always trying to adjust with constantly changing frequencies.

 

[Anonymous]

Hey Jim,
I am wondering what the average pitch of your chattering sounds like. I had some chattering and it was a low-pitched "buh uhuh uh huhuhuhu uh hu". It sounded just like a foil sound and it happened only while I was swinging the coil. Somebody on this forum told me that he thought it might be moisture on the plugs, and that I should take it apart, and put the machine back together again. I did this and it quit doing it. Otherwise, I don't know what to tell you.
Mike

 

[Anonymous]

Hey Jim,
When this happens the only option is to reduce your sensitivity way down, sometimes you have to go to single digits to make it run stable. Most electrical noise is broadband (contains many frequencies) and the noise cancel won't help.
Just something you have to live with.