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Tips on using the Fisher CZ20

Tips on using the Fisher CZ20

It seems that so many people are using the Fisher CZ20 for hunting that I thought that I would write up some tips about the way that I found to use it here. Since my beach has no problems with iron oxide or black sand it is a good standard to use and factor in changes after you have tried it this way first.

Don’t try to use the CZ20 on the beach or water hunting with the head mounted on the shaft unless you look like Hulk Hogan! I use a heavy leather “cowboy” belt and hipmount the detector on the belt where it works very fine and does not tire me to swing only the light shaft and coil. I tried to use the detector on the shaft only one time and found that it was unmanageable in the swift current. Perhaps in a quiet lake you could get away with it on the shaft but even there I would prefer the hipmount.

I regularly dig targets around 15 inches deep in the sand and some even deeper. I use a shovel as it is necessary when you dig that much and always chuckle when I see folks at the beach with one of those little hand scoops. It could take them 15 minutes to dig out one of my targets and that is if their beeper could even find it.

The settings that I use may be different for other beaches and conditions but give them to try out on your beach to see how it may work there. I “always” run the CZ20 in the BOOST mode! My hearing is not too good but that is only part of the reason. If I run the audio volume at 10 it will boost the tiny, feeble sound of deep objects to a strong loud beep that will stop me in my tracks. If it only whispered softly amid the crashing waves in the surf and the strong winds blowing through my ear phones I would never hear it. If I run it into maximum boost then I can get just as good a beep on a 15 inch coin as I would on a surface coin. Sometimes the tone id will fall downscale as the ID falls out of range but the detector will still pick it up! The reason that I can turn the volume all the way up is that I cut out sponge pads to fit into the headphone recesses and cut down the sheer blast by the target into a moderate beep. This does tend to average the sounds and level out the deep ones and the shallow ones. If I want to know how deep an object is I can turn the volume knob slightly down off the 10 setting and notice how “drastically” the volume fades. I generally save the time in stead of standing around and fiddling with the detector and just dig the hole! This saves lots of time in the long run and I dig a lot more good targets than people who play with the settings and study the targets.

I run the sensitivity all the way up into maximum or the 10 setting also since I have no bad mineralization problems. This means that the machine is running as sensitive as possible and in boost mode which employs a receive mode amplifier for weak signals.

I set the ground balance on 1. The reason that I finally decided to leave it there after trying to ground balance on the sand and in the water is that I found that I had less falsing and found deep targets too. Since that is all that I require that the detector do I figured that it was “balanced” pretty well! Setting the GB upscale will result in a false beep while swinging across varying sand/water combinations and often at the end of my sweep. Yes, even I, after 5 hours of hard swinging may tend to slightly lift the coil at the end of my eight foot swings. Setting it at 1 works for me. I leave all these settings the same whether in the water or on the sand!

The discrimination knob is the main knob that I flip on most targets. I set it on auto-tune in the water to keep the very sensitive machine from falsing along the ripples in the sand bottoms as the coil bumps the bottom some and flip the knob to zero to check the target ID tone and then if it is a coin tone I flip it to 6 to see if it is probably a zinc penny. Now let me say that sometimes good targets will id as zinc pennies. The setting on the discrimination knob at 6 means that everything lower than a copper penny is discriminated out but I have found a silver bracelet that was overlaid with a gold name showed up like a zinc penny! That is where the target profile is very necessary when determining whether to dig or not to dig. I have a problem keeping the wire wound around the shaft and it really takes about 4 or 5 of those Velcro strips when you water hunt in heavy current. I know that the larger 10 inch coil will find deeper tin cans and large targets but at the same time I hunt the surf with strong undercurrents and they have a tendency to pull the coil in only one direction which makes me work harder to sweep the coil under the water like I want to. For that reason I use the 8 inch coil and the fact that it will find even the very tiny, thin gold rings over a foot deep. The larger coil may just overlook a ladies diamond ring a foot deep and I would not want to do that. All targets either sink fast or are covered with sand here and go out of range deep, very quickly so I have to use the best machine for the job and that is the CZ20 here.

joy

goldenolde

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