LuckyLarry
Hero Member
- Joined
- Dec 16, 2005
- Messages
- 750
- Reaction score
- 390
- Golden Thread
- 0
- Location
- Sweet Home, Oregon
- Detector(s) used
- I had to sideline for awhile, too much quarreling, brand defensiveness, and seeing certain people waging war on others. It got to be too silly for me after awhile..
- Primary Interest:
- Other
- #21
Thread Owner
Fisher could have fixed it, maybe even for free. I knew a guy who had a BH that was too sensitive so he taped a big washer on top of the coil. It had auto-retune. That washer fixed the problem. Kinda' funny though.. 
It sounds like someone may have internally set your CZ way too high, maybe at the factory.
From the CZ 21 manual: "you may reduce your sensitivity level so you just ignore the very deepest target" (referring to deep iron targets out of range for most metal detectors).
I do know that CZ's were initially CREATED to find deep civil war iron, brass, pewter, copper, and lead items. In my own experience I discovered that my CZ could find a rusty tin can lid clear down to Hades in bad soil if I turned it up to full sensitivity. If I back mine to under 4 I couldn't find the rusty lid any more. Mine likes to find guns, it's real good at the task.

It sounds like someone may have internally set your CZ way too high, maybe at the factory.
From the CZ 21 manual: "you may reduce your sensitivity level so you just ignore the very deepest target" (referring to deep iron targets out of range for most metal detectors).
I do know that CZ's were initially CREATED to find deep civil war iron, brass, pewter, copper, and lead items. In my own experience I discovered that my CZ could find a rusty tin can lid clear down to Hades in bad soil if I turned it up to full sensitivity. If I back mine to under 4 I couldn't find the rusty lid any more. Mine likes to find guns, it's real good at the task.
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