Getting used to using cz5

[ldhurst33]

I have been a long time user of a whites eagle spectrum, and now I'm a new user to a fisher cz 5 recently I've used it a lot and been getting a lot of false jumping iron ratings so anyway I decided to dig some. to my surprise in the park after taking some with these I finally realized in the holes there is 3 or 4 old rusty nails as well is an old coin!
I have come to the conclusion that the cz will find coins sitting with nails, we're my Whites would null them out. This has opened up a new window of opportunity for me and I was able to retrieve eight coins today four silver.
As I said before broken reading bounce from coin to iron never would have dug before but now I will

 

[Dave J.]

CZ's speak their own language. It's not difficult to learn, but it is different.

Nonferrous range target ID is done using (superior) multifrequency methods that have no correspondence in single-frequency technology.

The distinction between ferrous and nonferrous is done using a single-frequency method, inasmuch as multifrequency methods tend to erase the distinction between ferrous and nonferrous. In the multifrequency domain, ferrous looks nonferrous, mostly in the mid conductivity range. NOTE: a simplified explanation is this: multifrequency methods are superior because they mostly ignore the iron minerals in the ground. But because they do this, they also lose the ability to respond to the distinctive magnetic susceptibility signature of iron metal, making it "look" nonferrous.

The people who really clean up with CZ's on the deep silver, don't reject iron. If a target classifies as iron, sweep back and forth over it from several different directions and for the time being, ignore the hits where the machine says it's iron. But keep score.

If nearly all the hits are iron, it's probably iron.

If the non-iron hits classify mostly in the high coins range, it's probably a high coins.

If the non-iron hits classify mostly in the nickel & foil range, it's probably nonferrous. Experienced users of the CZ's describe them as "nickel magnets".

If the non-iron hits hit consistently in a particular mid-conductivity range, it's probably nonferrous, possibly a ring. Iron tends to bounce around.

If the non-iron hits bounce like heck but mostly in the mid-conductivity down to and including nickels, well, that's typical iron behavior, not giving clean consistent ID. If it's easy to dig, whip out your digging tool and let your eyes do the final discrimination. If you don't feel like digging, this is one to leave in the ground.

--Dave J.

 

[trojdor]

ldhurst33,

Glad to hear you're finding silver.

I got nothing to add to what Dave said...listen carefully to him. (And in case you didn't know, Dave is the guy who designed your CZ.)


mike