Finally, the F 75-2 is Talking my Language

[Coin Rescue Inc]

Since the upgrade I struggled a bit to calm down the F75.
Seems the ability of the F 75 to see all metal at once was a bit annoying at times in trashy parks. Just too much coming at you at all times. Sensory overload.
The most likely fix was to crank up the descrimination to start nulling out the lower signals.
I also tried notching out iron and tabs. But that can null out gold.
My favorite audio setting for coins before the upgrade was to use 3H or 3 tones. The upgrade seems to me to have increased the like hood of rusty iron popping in at 95 to 99. In trashy areas the high tones were too plentiful sending too many false alarms. So what good was 3 tone. Just too many to be useful.
The F75 has so many programing options one could say it is really versital.
I think I made peace with the F75 for coin shooting. I happened to be using the 5" coil in an iron filled fair grounds.
I tested the ID of the 95 and confirmed I was picking up nails of al sorts. Once out of the ground the nails are just iron grunts.
In my testing list today was time to try the tone "delta pitch".
The multi tones from this audio feature seem to be the ticket to provide the distinguishing tones needed to counter-act the 95 high pitch issue.
At zero discrimination the lower targets are more like a buzz or grunt.
When you hit a zinc penny the tone is a solid medium tone and the ID number very stable.
When you get a dime or a copper penny the tone is slightly higher an number distinctly a bit higher.
The quarter in a bit higher too at 83. Very stable numbers too.
With these numbers walking though a section of the fair grounds I believe I cleaned out every coin I crossed that was 7" deep using FA process. 35 coins in all in short order. On crown cap and one aluminum screw cap. I tried this in De mode and thought it was a bit deeper and stronger for some signals.
Settings
9.0
5" coil
Sensitivity 80
Discrimination 0
Notch 1
Tone DP
Process Fa
In DP the tones seem to hang in there a bit longer then in other tones.
If you try this let me know what you guys think.
In a way it reminds me a bit of the Explorer or XTerra but much faster processor.

 

[Coin Rescue Inc]

This evening - at a city park.
13 quarters
4 dimes
7 pennies- 2 wheats, 30 and 48

 

[WV62]

Were you still running that Dp? If so I will need to give it another chance.

Those wheat pennies could have been silver dimes.

Ron in WV

 

[indy durtdigger]

Good post. I will have to give the DP tones a shot this week. I have been living with the high tone chatter in 4H knowing that once the machine finds something it wants me to take a closer look at there is no mistaking it.

 

[Coin Rescue Inc]

Yes I am pretty excited about the way the DP is working for me. It seems to just have low mild grunt on low ID numbers then the higher tones jump out beginning with zinc. Seems very productive for me at least. In between the grunts I pick up some soft high tones so I have to check some of those signals soon. I am beginning to notice the false iron tone of the 90's is a touch higher pitch than the 83 for a quarter. No mistaking a quarter. In the last two days I picked up 63 coins. Mostly clad but super productive for me.16 of these were quarters. 12 dimes.
Next time out I am going to try the 10x5 elipiticle for a bit more depth.
HH

 

[Elton]

n/t

 

[Coin Rescue Inc]

In FA at 80 to 90 sensitivity I was air testing to 8" on a dime where the signal would start to breaks up. The signal is variable. Louder if close to the surface. Also a deep crushed can would sound loud but be down there the length of the pinpointer. If I get a weak signal I switched to De to get a stronger read on the object. At yesterdays park the grass and clover was quite tall. Maybe 8".
I remember pulling a quarter out of a hole with a half dollar sized chunk of steel. So the high tone told me to dig that one. Seems the high tone and grunt can be be heard at almost the same time. Maybe it is the speed of the processor switching back and forth.
For deeper signals you have to swing a bit slower or you might just get a bip and pass over a small target. I notice new quarters want to be found and start to get the 5" coil excited about 8" away.
This is almost like all metal mode or pinpointing but variable pitch of tones.

 

[ez4sure]

thanks for the report, are you using dp in heavy trash spots the few times i have used dp it was a bit overwelming so many tones i guess i should try it again and go slower hh

 

[Coin Rescue Inc]

Tuesday report afterwork:
Stopped at another small park.
Use De process mostly and concentrated on soft high tones too.
The light soft high tones are worth investigating. They were mostly copper pennies. One measured 8" down.
Take tonight was
5 Quarters
4 Dimes
9 pennies and two were wheats
Then one silver ring!

 

[KennyD]

Wow. Great info....thanks for posting it. especially the delta pitch tones stuff. Im seriously gonna give delta pitch tones another try.

 

[WV62]

Sounds like Dp maybe the way to go, but I checked the manual and it talks about when in Dp tone it ties the tones to the meter ID. The other tones are listed as what you hear may not be what you see on the ID meter, and they are not tied together.

Not say any of this is good or bad just something to think about.

Ron in WV

 

[mudpuppy]

Great write up there CRI...

The cool thing about all the tone selections is a fellow can find the right language their brain understands...for me its DP...it gives me depth and size of target as well as what it probably is..a fellow never need dig another crown cap or screwoff unless they get curious..or zinc either...the multidenom stacks that ID like a crowncap or screwoff sound a lot different even though the TID is the same...running DP, a guy can flat plow though a trashy area and pick out whats good in there and leave the rest if they want....those 'soft higher tones' like CRI mentioned, mean theres something either copper or silver, on edge, or deep..

Somebody should do a vid!.....what a zinc p, a copper p, a clad dime, a silver dime and a canadian P sound like in DP tones!....then toss out a q and a half, both distinct and different tones! The canadian pennies hit really hard and higher ping than our clad or silver dime even, makes a guy think 'silver ring' ..absolutely no problem telling a flattened crown cap from a Q, even with the 11"dd...then stick a dime in the dirt on edge if you want, listen to what that sounds like. easy to recognize!

I cant hunt effectively or fast with any rig unless it has DP tones and proportionate/modulated audio like the F70/75 have, you know what the target is, how deep, etc. from the first pass of the coil over it....

Delta Pitch just made sense for my brain right from go! (Thanks DaveJ)...In fact somebody could toss out 100 zincs and ONE copper penny in an 10X10 area and you can easily find the copper one just by using DP tones..never once looking at the screen..might take a guy all of 2 minutes to work a 10X10 with that many zincs in it....toss out only 5 zincs, and one copper, and it would take maybe 20sec to work a 10X10 and pull the copper..hell, throw a few tabs and a nickel in there just for giggles..a blind guy will walk out of there with the copper and the nickel just hunting in DP tones...seriously a powerful feature that does not seem to get much use?....DP tones, a guy can cover an entire football field in about an hour...and thats taking it easy..
Mud.

 

[Coin Rescue Inc]

Ya know the day after I started this thread I thought to myself, "say isn"'t this what Mudd was taking about for quite a while?"
So hats off to Mudd for point out the way.
I think the FA mode ands a bit of processor speed to the F75 but I never had a F70.
Ron,
You have a valid issue to discuss from the description in the manual. Sometimes the manual is a bit vague. I had one target Tuesday provide a soft high pitch and no ID number. I thought oh oh something broke. So I wonder if the tone and ID are really the same.
Yesterday I had a deep clad quarter bouncing at 85 and lower. Dug on tone and it was a quarter. So anyway I will think on this and look for evidence either way. Regardless this new to me method brings back the fun in detecting.

 

[mudpuppy]

CRI! it was tough, I held back....this was your thread and I enjoyed and learned from the banter....just watching and reading quietly cheering you on from the sidelines....Telling you Brothers, this F75/70 DP tones mode...

The only reason I never bought any other dirt rig..I am not convinced after all the various posts that theres any rig faster, lighter, simpler, prolific, or more accurate than an F70/75 set up in Delta Pitch, even at twice the price, if it was there, I'd buy it and Mud be damned from the F forum forever!......

..I'm not the only one either, theres a few of us here running DP tones that knock it down hard, fast and often, and for good reason they keep quiet!...

If anybody out there can duplicate come close to, or surpass this hunt I had last December with any other off the shelf or modified rig, in any kind of tones even, then pipe up!...Its just not humanly possible unless you are running DP tones with a rig that has such a fast recovery, modulated and proportional audio as the F70/75 have.....and to think I passed on over 1000 dimes that day!...I will go back, its 250 miles away..

There were just so many unresistable sweet Q pings!..All of them as you can see were locked down in the dirt a few inches or more..no surface drops really....anybody grabbing 45+coins per hour in three random and unfamiliar parks over a 10hr time frame with anything else and no junk? Mid sens, + DP tones... CRI is telling you F75 brothers, you gotta at least try the Delta Pitch for a bit....
Like the old joke, "You gonna talk, or you gonna fish?"...
Mud.

 

[KennyD]

I just got my 75 about a month ago. Had been running 3 or 4 tones.
I read this thread last night and decided to hit the park today and try the delta pitch tones. Ran it for 3 hours and
I gotta say I love it. Thanks again guys for bringing this topic to light!

 

[gmanlight]

Time to revisit DP dont think i have tried it in years. Thanks

 

[Coin Rescue Inc]

This set up is still my preferred hunt mode.
I went to quadruple baseball field behind city hall.
I experimented once with my 10x5 coil and it did not work out well. Next to the field has a tall cell phone tower.The oval coil seemed to be more susceptible to EMI especially in Fa Process. Switch back to the 5".
Even at home I can't use Fa process. That Process is highly susceptible to EMI. De Process is working fine and senses deeper. You get stronger signals.
So the 5" coil is my favorite at this time with De process where needed due to EMI. With Fa I need to keep looking for static free frequencies in town. Out in the boonies it does not mater as much.
Last night I had slight high tone mixed in with low tones and jumpy numbers. So i dug and found a Clad Quarter like 6" down with some junk.
That's not perfect because on other tries I only found small chunks of aluminum cans. That is detecting!
Last Sunday our Detector Club had a seed hunt.
Using this set up I picked up 10 silver dimes and 10 buffalo nickles without having to pin point. They were are all buried 2".
That is about 20% of the 200 coins they buried.
This was in between the rains. It started coming down hard and everyone had to take shelter.

 

[mudpuppy]

Thats a pretty good showing on that hunt there, CRI! Yeah, I also stay in DE mode all the time, combined with DP tones...mid range sens, 50ish... A guy will not miss a coin 6" to surface...Now if a fellow gets into some clean older dirt, or at the beach, hitting deeper targets, I suppose I might jack the sens up to the mid 70's...I never have any trouble with EMI when I'm in those softer settings...
Mud

 

[Coin Rescue Inc]

Thats a pretty good showing on that hunt there, CRI! Yeah, I also stay in DE mode all the time, combined with DP tones...mid range sens, 50ish... A guy will not miss a coin 6" to surface...Now if a fellow gets into some clean older dirt, or at the beach, hitting deeper targets, I suppose I might jack the sens up to the mid 70's...I never have any trouble with EMI when I'm in those softer settings...
Mud

Last night I was running around in De with sensitivity at 80 with no issues.
At our club hunt I ran it at 30 sensitivity which is more that enough for 2". I did dig a tab later that was 6" or 7" after the silver coins were gone. Figured "what the heck" might be something down there.
The town at the park dates back to 1830 and is close to the site of an old mill.

 

[Coin Rescue Inc]

Just stopped in to say nothing has changed much. This is still my go to set up.
Hit a park last week end and did pretty good.
One notable find was a think brass house key 11" deep. I had to measure the depth. Had a weak breaking up high tone and fluttering numbers.
This was with the 5" coil. I was getting some old ring pull tabs in this park so Iffy signals were a must to dig.