I just recieved a Fisher CZ21 Quick Silver from a friend

[deepdiger60]

This buddy of mine Red he is 70 and a picker was givin a CZ21 for free a few years back he,s not sure exactlly when and never even opened the box this guy is one of my Vietnam vet buddys and he is not doing good we both go to the VA Hosiptal by DAV transportation van and yesterday he had this detector with him for me , i said holly cow !!!! that is a aswsome machine how much do you want for it ??? he said just take it and find some gold Red has no idea how to use it he never has detected , man O man i couldnt thank him enough , by the way he is moving to a warmer dry climate Mid West he cant take another cold NY winter . I never used one of these detectors before only Minelab water machines just what is the learning curve on it ?? .I also used a Whites DFX for 5 years maybe i have a head start then ? by the way this CZ is spotless never used . Thanks for any insight Jim

 

[DiggerODirt]

You got yourself one heck of a deal...Never used a 21, but I hear it can do anything...Great machine from all I have read on it.

HH,

 

[tvr]

Easy to get started with a CZ. Don't run sensitivity too high in discriminate mode or it will false. In discriminate mode listen to all tones, meaning run the discriminator set at 0 so you hear the low tones. The reason for this is that if you swing the coil over iron too fast, it can read as high tone. If you listen to all the tones, when you hear a tone and go to more accurately locate the target; slow the sweep down and see where the tone settles. If the target sizes small and is low tone and is deep, dig a couple of inches of sand away and sweep coil over it again. Deep targets tend to average down in conductivity reading.

On targets that give a low to mid-tone bounce, dig it. On targets that give a low to high tone bounce, slow the sweep way down. If you still get a bounce in the tone, dig it. if it goes all low tone when the sweep is slowed; you can be pretty sure it is iron.

Here is a link to a post a little while ago that talks about hunting with the CZ (although it is not specifically a CZ21, it still applies):
http://www.findmall.com/read.php?23,1780984,1781297#msg-1781297

Cheers,
tvr

 

[PowerDetecting]

I set mine to Auto Tune Crank the Sense To MAX and go! Hit a target and switch to Disc to hear the tone. Watch that Bell tone it will scare the crap out of you.

And like it was stated above dont set the disc too high or you lose not only depth but gold. keep it at 0 if possible.

 

[deepdiger60]

Thanks all for the helpful information the CZ sounds alot like my Sov GT hopefully this week ill give it a try on the beaches . Jim

 

[Steve O]

I don't think cz's loose depth in disc, they just don't let the tone through to the speaker/headphones.
I only use 0 disc, otherwise you will hear the high falses and not the low grunt of the iron that's really there.... and therefore wast time digging iron.

 

[DiggerODirt]

I have NEVER been able to put my SENS up all the way without having an unstable machine...I run at 6 on the 7a Pro most of the time...sometimes I have to drop it to 4...
I only notch out Iron and Foil, and leave the rest in...I do not do any relic hunting really...mostly coins and jewelry.

HH,

 

[tvr]

CZ's are one of the few older designs that do not suffer depth loss with a higher discriminator setting. Reason to run at 0 is to hear the iron bounce so the iron does not fool you very much. You can set it higher if you like. Just be aware that if an iron object bonces to high tone you may be disappointed when you dig it since you did not have the advantage of hearing any part of a low tone as the coil approached the target.

I run sensitivity on my CZ20 at about 5 most places when I run with discrimination set to 0. Any higher and it will false. In autotune (all metal) it can be cranked up and run at or near max. I run the CZ6a in autotune with near max sensitivity often when at the beach. A flip to discriminated and with a slow short sweep over the already located target gives a pretty good target ID indication without falsing. However, hunting in discriminate mode at high sensitivity gives falsing as the changes in the ground are read during normal coil sweeps. If I hunt the the CZ6a in discrimination; then sensitivity is around 6.

I don't flip modes much on the CZ20 because, in the water, where I use it, there are a number of things that hinder running it with high sensitivity in autotune and then flipping to discriminate to check:
-finding the knob and reliably flipping it to the correct setting when I can't see it.
-if I could find the knob reliably, water movement often does not give me much time to stay over a target evaluating it as the water tries to move me off the target.
-in the real shallow suds, the water movement will give false signals when in discriminate mode running high sensitivity.
Cheers,
tvr

 

[scubadetector]

You have a GREAT machine. Sens at 3 - 5 disk 0 or 1 and ground at 10 is what I use in Michigan. If you get too many false one way beeps, drop the sens a tad. High tones are mostly coins, full metal jacket bullets, broken new pulltabs, and some sinkers. Bounce between mid and high, some Canadian coins, some tungston carbide rings, some bottle tops. Mid tone, pulltabs, gold rings, sinkers, brass shell casings. Bell tones (my favorite!) guns, cans, boat anchors, old metal toys, some gold rings, tools, knives, lighters, LOL you name it, if it was dropped in the water it hid!

Not a big learning curve at all. Get a long handled scoop and ENJOY each and every hunt and find.