Newbie to F-75 questions...

[Chris(SoCenWI)]

Hey all,

Trying a new machine after years on the explorer. I was/am looking for something that can deal with iron and trash better than the explorer, and be able to turn up the sensitivity in town around power lines. So far my gut feeling is that it is not better at either, but way too wet behind the ears to make a informed judgement yet.

What modes are most of you running in for finding coins in trashy hunted out areas? I've been using the discrimination mode with disc set at 25 or so. Nothing notched in or out. Four tones.

Been digging quite a bit to see what it is telling me.

Any help would be appreciated.

Chris

 

[Tinfoil]

We were in a bad noisy area the other day and started out at 80 sen but dropped it down to 70 and ran quite as a mouse. : : Trashy trashy area also. Will be glad when the small coil gets here. Dis at 6 will quiten down the machine. I don't ever run more then Dis at 6. Hope this helps. HH Jerry aka Tinfoil

 

[Chris(SoCenWI)]

Disc set between 5 and 19 kicks the detector into a lower sensitivity mode when using DE. I was originally detecting at that setting and could dial the sensitivity number up high. But was able to only get 4-5 inches on a penny in an air test. Yesterday I moved the discrimination to 25 or so, which kicked it back in to high gain mode and I had to back the sensitivity down to 25-30 to get any stability, but then my depth on a cent was back down to 4-5 inches. I was able to run my explorer at the same site at 21 manual sens.

I'm pretty sure the detector is working fine. If I crank the sens up away from EMI I can get pretty impressive depths.

Other question is when detecting often get very short beeps that do not repeat every swing. I've been digging many of them and they are sometimes a non-ferrous target and sometimes iron falsing.

Should I be trying non-discrimination modes?

Chris

 

[Mr.Bill]

I tried out your settings Chris, and I get a penny at about 7

 

[Tinfoil]

Faster then a 426 Hemi processor. Do your air test again and swing faster all the way across the coil from one side to the other in the center of the coil. The coin will hit better. That is why you always pinpoint the target and get it right in the center of the coil no matter if it is a DD or a concentric coil. What you said about the Dis up around 25 is true but you have to turn the sen. down so much you don't acomplish anything, due to the noisy sputtering you will get when you crank up the dis to 22 to 25 and keep the sen. the same. Then you have cut out the nice feature of hearing all the different tones to help you dig out the good stuff from the bad. I run De and Bc almost all the time. Have not hunted anywhere I can use the Jewlery mode due to the areas I been hunting. Dis at 5 or 6, sen at 80 85 if I can if not down it goes to 70 even around a lot of power wires and transformers mine, runs quite as a mouse. I can hit a dime at 10"s as long as I center the target and swing fast with a sen. of 70 but it has to be in the center of the coil and the tone will be a deep quiter audio telling you it is a deep target. The trick is when you get those high tone quick pops is to center the target with the pinpoint and swing with a faster swing and watch that target high tone. On the Exp. you still have to pinpoint the target but on the Exp you swing slower not so with the F75. Also if you swing faster over a target those rusty bottle caps will break up and won't repeat. I will sometimes switch over to all metal when I have the target narrowed down and I keep getting good target and the iron tone in the dis. mode. When I am in the all metal mode with the F75, just like the Exp. in all metal you can see and hear it all. Just wished it had tone ID in all metal like the Exp's. have. When I first got the F75 I too had a ID problem since I run the Exp's for such a long time. You just got to swing faster with the F75 especially if you are getting those real deep quick high tones that sound deep and don't worry about missing the tones on the targets as the processor is so fast. One thing to remember don't do the wiggle. Try to at least make your swing the width of the F75's coil sisee to side. You will hear all the targets it just seems to ID better if you do that. Try it in the air and you will see what Mr Bill and I are talking about. Then go back out and on those quick quite high tone targets swing faster and you will bring that target right out and if it is a iorn target it will break up and not repete. Hope this helps. : : Back to LURKING. If ya'll don't have a comment at least Because, I might be all wet here and putting out bum info. What do you experts say as I am not one of them. I just hunt a lot and don't post much and Lurk a lot. HH Jerry aka Tinfoil

 

[Streak!]

but only on low conductors. Doesnt seem to make much difference on coin type targets. Try the same test with a tiny bit of lead or small gold chain. You'll see what I mean. Streak!

 

[Tinfoil]

n/t

 

[Tinfoil]

I would rather hunt in Dis at 6 and run the Sen up to 80. Jewlery mode is to sensitive even at 50. At Dis of 25 sen. at 50 you get a couple more inches then at dis of 6 but if you are in the trashy iron you are going to lose the iron signal. I would rather hear it all. In jewlery mode at 50 when you are at 6 or 25 the falsing isn't worth it if you are really trying for the depth and wanting the machine to run smooth. You got to drop it down to 30 and less to shut it up and that isn't worth it to me. Of coarse this was all in a air test so might be the same in the dirt might not. Will try it in the dirt next time out. I already don't like it cause it cuts the iron out at 25 and the foil targets. Only the upper end foil targets and targets that are above 25 are going to respond. Not my cup of tea when I am in the iron trash hunting for the good stuff. If I was going to do that I would rather notch out stuff and still be able to hear the low tones. Just my 2 cents worth. Will play around with it more like higher sen at a Dis of 25 , use the DE and BC mode and see what I get. OK back to LURKING HH Jerry aka Tinfoil

 

[Mr.Bill]

I was going to bring up the Sov. wiggle thing, but I didn't want to cloud up my post any more than I did.

The manual mentions to give it a brisk sweep, shoulder to shoulder rather than wiggling the coil over a iffy target.

 

[Mr.Bill]

n/t

 

[vlad]

Are difficult to get a "good non iron" reading on just about every detector. Some of the gold machines do better, but the trash will eat you alive at the beach.

 

[Streak!]

digging every non Fe signal is a given, no matter what you use. Even if you DO dig it all though, not all machines have the low conductive sensitivity to dig small gold and chains consistantly. I only have two machines that I consider butt kickers at the shore, and both operate at a relatively high freq. I go to the beach EXPECTING to dig every little beep, and that includes all the trash. If ya wanna dig the good stuff, you have to dig ALL the stuff............