Notching and a Fisher F75

[retafrx]

Bought a new F75 late last year. I am having difficulty understanding "notching" function and what the "slashes" are suppose to represent. I am only trying to notch out Iron, Foil and Tabs.

Chris

 

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[Charlie P. (NY)]

Iron would be anything below 10 or do on the VID. Foil 20 to 25 and tabs 35 to 45 or so.

You can do it two ways. If you are above the discrimination setting pressing the button while in the notch menu will notch that segment out. If you are below the discrimination setting while in notch pressing the button will notch that segment in. The slashes cover half of the range (5 units in the lower ranges) as indicated on the upper scale.

Set the discrimination to 45 and then go to notch and press the button at 34. That will notch in 30 to 35. Then drop down to 29 and press the button again. That will notch in 25 to 30. You now will find nickels but not iron. Tabs get in unless you set higher discrimination - but it will cost you gold rings.

The other method is to set the discrimination to 20 and then go to notch and set it at 36 and notch out that range (35 to 40) and then again at 41 (41 to 45).

 

[retafrx]

But what do the slashes mean? The top back slash, bottem back slash and the full slash through the range?

Thanks, Chris

 

[Charlie P. (NY)]

Slash means it is discriminated or notched out. Each range has a upper and lower slash portion - so the full slash is the whole range notched out while a portion means it is still open.

Go into discrimination menu and slowly turn the knob. You'll see it puts the slashes in to match the number in the VDI. The discrimination only goes up to 65.

Also good to know is that if you turn off the detector and turn it back on while pushing the trigger forward and holding the button down it resets to factory defaults. VERY handy is you get lost in the notching and and notching out.

Anymore I set the discrimination to 4 and choose what to dig based on signal strength and consistancy. I haven't put a notch on in over a year.

 

[AUDuke]

I personally feel that notch disc is a uncessary bell or whistle on a TID detector, if you dont want to dig it , dont.

 

[retafrx]

Thanks Charlie P
Now I know what the slashes denote.... Called Fisher 3 times and finally got and anwser 2 days ago and the guy seemded to be clueless about my quest.

Kellyco never returned the call.

Now I have the answer...

Thanks so much!!!

Chris

 

[Charlie P. (NY)]

Glad I could help. The manual sure could go a long ways towards being more informative. Luckily, the menu layout and few controls allow you to eventually self-instruct. I spent a lot of time in my test garden futzing with settings until I had them mostly figured out.

Maybe I should farm-out as a customer service contact?

I can fake a Hindu accent.

"How you are doing?"