CZ-70 Questions

[Dig It]

I recently acquired a CZ-70 and my first impressions are not great. The CZ seems to pick up every piece of rusted iron in the ground and registers as a coin both in tone and ID. It also seems to do the same thing with aluminum chunks, old aluminum bottle caps etc....
I know there is always a learning curve with any detector so any advice would be helpful. Is the ID and tone on aluminum and rusted iron suppose to register as a coin?

Should I send the unit in for possible repair work?

 

[Cal_Cobra]

What settings are you using?

The best way to setup your CZ70, at least initially, is with nothing notched, sensitivity at 4, and make sure to properly GB the unit and it should run smooth.

Learn the order of conductivity well (it's in the manual) and yes it will pick up all aluminum and it just depends on the size/shape of it as to what it'll register as (same as would any detector really).

It's a great machine, and it should have a fairly short learning curve, but will find deep coins and LOVES silver

 

[Dig It]

Cal Cobra,
My CZ was very stable while detecting. I had no falsing, it just sounded off with a high tone and registered under the icon for silver coins (Not the Penny or Nickel icon)
Allot of the detectors that I have owned would put aluminum under the dime/copper penny icon so you could notch that out if you were just silver hunting. I ran the CZ the way you described above IE the user manual settings, I just don't think the machine discriminates as well as some of the machines I have used in the past. If it runs stable at the beach this weekend as I herd it does It well serve me well. I just thought maybe it might not be functioning the way it should with all the iron I dug and aluminum.(Dug six dollars with a T2 two weeks ago and 5 Penny's yesterday)
If my CZ is working properly it just might not be the best coin hunting machine for me, I will just use it for beach and relic hunting.
Thanks for your advice, Keith

 

[BJ in Okla.]

Leave < Iron > in so you can hear it, iron will be a low tone and show iron on the meter, But when it comes off of the iron, it will jump to high tone and show high coin on the meter....IF you notch out iron, you will never hear the low tone, just the high tone and think you have a coin....

Also, get a 5" coil for your CZ, in our soil, my 5" coil will hit 8" and 9" dimes easy.

Learn the true order of conductivity and then look at your manual, Fisher moved nickel up in the high tone area.
Here a V nickel will read in the Foil range.
I have seen 2 Barber dimes read as Zinc on 3 different units.

Any unit that I ever used had trouble with alum. screw caps, but they sound bigger than a coin, you may learn this in time, and pull tabs and SQ tabs are another problem for any unit, there is one that will read just like a nickel...But that is where gold rings read also..

Hope this chart helps.
HH...BJ

 

[tvr]

Like BJ says, don't notch or discriminate out the iron, listed to the low tone.

And when over a target slow the swing way down. Iron low tones like to go high tone coin when the swing speed is increase.

 

[Dig It]

Thank you guys for all your advice, much appreciated.
I took a trip to the beach today and the CZ 70 really impressed me with how stable it ran and the signal depth . To be fair I only used the CZ for 2 hours and based my opinion off of that, which is not fair to any detector.
When I was at the beach today I thought about the XLT I had bought some years ago. I absolutely hated it. After a year and 6 months with the detector it became my main coin shooting detector.
So again thanks to those who chimed in I appreciate your advice and for this forum which allows me the opportunity to get that advice free of charge.
Now all I have to do is get out there and dig it!
HH

 

[BJ in Okla.]

I love the CZ tones.
HH...BJ

 

[1seeker]

Got the sun ray fz12 coil for mine today went out to my cleaned out yard ,new hits all over ,it was dark cant wait till this weeked ,ive had the cz70for years but this will open new old silver coins ,i feel it ,get back to me later Earl Maryland