CZ 20/21 question

For saltwater beach use, is there noticeable depth difference between all metal and disc mode? Thanks.

I've owned a CZ20 since 1998. I have done quite a few tests in the wet sand on buried targets over the years. At ocean beaches, All metal is deeper than Disc on targets that ID as non-ferrous.

The key thing about the CZ20/21 is that deep non-ferrous targets will give low tones or partial low tones if the target is near the edge of detection. These non-ferrous low tones get the same depth as All Metal. With practice, you can easily tell on most targets which low tones are non-ferrous just by the way they sound, and by doing a target profile for size and density. I have dug many deep gold rings that were low tones. If you get a deep low tone and the signal is very small and dense, it has a high likelihood of being non-ferrous. Iron will usually have a wider and rougher tone. This only happens at saltwater beaches and will not happen on land and/or freshwater. Away from the salt environment, you will not get low tones on non-ferrous targets. The CZ20/21 is way deeper on the wet sand than it is on land.

If you get a deep low tone that you think might be a ring, scraping away the top two inches of sand with your foot might give you some mid or high tone if the target is non-ferrous.

All Metal does have a slightly wider signal instead of just a short beep which might allow you to pick up targets on the edge of your sweep that might be missed in Disc but the difference is so insignificant that I hunt in 0 Disc 90% of the time.



Edited 13 time(s). Last edit at 06/29/2020 06:21PM by Badger in NH.

Thank you Mr. Badger. Your info is much appreciated.

Lonnie

These old articles "The secrets of finding the deep ones" by Norm Garnush explain the technique more deeply. [thesilverfiend.com]

I had forgotten that the non-ferrous low tones might be possible on land in some highly mineralized ground. It is less likely to occur if your ground is mineral-free like where I am. It is the minerals in the ground and the salt in the ocean sand that extend the depth capability of the CZ20/21.



Edited 3 time(s). Last edit at 06/30/2020 05:21PM by Badger in NH.

Badger,

Thanks for the link. Printed some out and will have something to read/study at bedtime.

Badger, how did you find Norm's articles, I love reading his stories, he passed way to young

Caretaker Wrote:
-------------------------------------------------------
> Badger, how did you find Norm's articles, I love r
> eading his stories, he passed way to young


I just Googled "The Golden Olde" and it came up on Silverfiends site. It's cool that he took the time to save Norm's work.

Here are all his articles. [thesilverfiend.com]



Edited 1 time(s). Last edit at 07/02/2020 07:28AM by Badger in NH.