It is a very valuable device in America. Its creator is Tom Dankowski, who now works at NASA. Tom Dankowski invented the detector sometime in the 1990s while working at Fisher.
Initially, production of the device began at the factory in Los Banos, and Fisher gradually closed this factory and continued production in El Paso. At the Los Baños plant, where the first detectors were produced, they are the most prized by Americans, their serial numbers beginning with 1021, and perhaps about 500 such units were produced.
It is more expensive because it turns out to be a little deeper than models produced after 2004 in the new factory. More than a few Americans personally send their detectors to Tom Dankowski at NASA to have them reset and modified to some of his standards for $100 and after the modifications, Tom Dankowski himself puts a sticker on them saying when the overhaul was done and in the future which increases the price of the detector even more.
After this reset the rigs do increase the depth by another 1.2 inches, but not always, mostly the additional adjustments that Tom Dankowski makes are related to improving the “target placement” (perhaps from what I have read). This is the only Fisher model that has survived many years and is still in production, and it is rumored that it may be discontinued soon.
Thomas Dankowski – Non Destructive Recovery Techniques
It happens that one of the new models of modern production leaves the factory with very good characteristics and vice versa (no two devices are the same), and this can be easily verified. If you want to check if your Fisher CZ-3D is working, turn on the 8-inch coil, set Ground Balance to 5, Discrimination to 0, Sensitivity to 3-4, Volume to 7-8 and you should get a solid repeating tone High on the coin air test in the 9-11 inch range, if your unit fails the test, it is recommended to send it to Tom Dankowski for a reset.
The device maker claims that the device is deeper with a specific sensitivity setting in the range of 5, more precisely the deepest is 4.8, increasing the sensitivity will only make the device noisier, but not deeper, this is important to know.
Increasing the sensitivity in the limit after 5 only makes the device cover the signal from the coil a larger area, but it does not increase the depth. Rather, it begins to cover a larger area, at the expense of depth. The unit may be the same from what I’ve read compared to the Fisher F75 at about the same depth, but the Fisher F75 has a better recovery rate and performs much better on an iron contaminated site.
The Fisher CZ-3D requires a slower swing to operate due to the slower recovery rate, but is a great device for working in non-iron contaminated areas because it has an “enhanced old coin search mode.” If the site is contaminated with iron, the Fisher F75 is the most suitable instrument for searching such terrain, and the Fisher CZ-3D is more suitable for sites that are anciently inhabited, but not significantly contaminated with iron.
In conclusion, apart from its slightly high price for a device of this class and the fact that it is only available in 8 and 10.5 inch coils, the Fisher CZ-3D is not a bad machine in my opinion, and it is no coincidence that it is highly regarded by Americans, Unfortunately, it is not a common device with us.
Now I remember another drawback was the search coil cable, I read about some issues with the cable after the coil time if I wasn’t careful it could get damaged very easily. I hope I was useful.
- Is there gold on the beach? I tested my new detector
- The sound of gold whistling in the metal detector
- gary drayton metal detecting
- Tesoro Gold Plus Locator
- metal detector beach finds
- Cheap metal detectors
- What is the best waterproof metal detector?
- good metal detector for gold
- Top 5 GREATEST Metal Detecting FINDS Review
- In which countries is metal detection allowed or prohibited?