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Why little or no info on F70...
- Thread starter Dan-Pa.
- Start date
I see lots of posts on the F70, but remember some seem to jump to the F75 at first opportunity. Given a greater number of variables from the user-interface it makes sense there is more to talk about.
F70 has the interface that really makes it simple to find a fit for the search conditions. By way of comparison the F75, with more options will invariably result in more circumstances where one or more groups of settings may work equally well under similar hunt conditions, me thinks.
I was out with my buddy and his C$ last weekend and I finally beat him in determining what the target was before we dug it. Just a little thing we've done on and off over the last few years. He always had the edge over me when I was using one of my CZ's though I maintain I had the depth advantage. Now with the F70 in hand I can trump his call on coins, but he has a clear depth advantage. He can id 10" coins, I can barely see chirps beyond 8" for the most part.
F70 has the interface that really makes it simple to find a fit for the search conditions. By way of comparison the F75, with more options will invariably result in more circumstances where one or more groups of settings may work equally well under similar hunt conditions, me thinks.
I was out with my buddy and his C$ last weekend and I finally beat him in determining what the target was before we dug it. Just a little thing we've done on and off over the last few years. He always had the edge over me when I was using one of my CZ's though I maintain I had the depth advantage. Now with the F70 in hand I can trump his call on coins, but he has a clear depth advantage. He can id 10" coins, I can barely see chirps beyond 8" for the most part.
Im giving the LTD a whole season to judge as to performance. Maybe i was lucky and fortunate locating fertile sites last year, but man I was finding a lot of great coins with the F70. I have returned to some of those sites with F75LTD and have not made huge killings there. I really believe I scoured those sites with the 70, and was getting things 8-10" deep at least. Maybe it just me, but I think the batteries lasted longer with the 70. As I noted with small digital devices the minute you add back lighting you definately drain the batteries at a faster rate. My main bone with the LTD at this point is learning to ID the memorial cents better, they seem to sneak in there quite a bit, when Im sure Im thinking some other coin. The LTD is right on for quarters, dimes, nickles and other stuff. And I think the pinpoint feature on the LTD is much more accurate then the F70. But again as others have noted, the F70 is no slouch, it is a good and able machine.
The F70 is a good machine, I made some great finds with mine (hunted with it for about a year). My main problem is I just didn't get the depth from it in my soil that I needed to get to the next strata of older coils in places I hunt, so I jumped ship and went to the F75 LTD and CZ70, which definitely had a clear depth advantage over the F70 in my soil and opened up some spots for me.
Osgood I wonder what the soil is like out your way? I know I hunted out there, but the CZ70 doesn't tell you anything about the kind of dirt your dealing with. The reason I pose the question is that some people are lucky to live in areas where the dirt has no mineralization, and therefore they get optimal performance. For instance Florida has inert sandy soil, it's like hunting air, so a LTD or CZ can hit a 12" deep dime because they run a their peak, and I suspect a F70 with max sensitivity and maxed out threshold may well do the same. Unfortunately here the mineralization is such that if you ran the threshold into the positive you'd go mad from the noise, so you compromise with a lower threshold and less depth. 8" with the 11" DD was about max I ever saw from my F70, and it had to at be the right place (not EMI and low ground mineralization).
Osgood I wonder what the soil is like out your way? I know I hunted out there, but the CZ70 doesn't tell you anything about the kind of dirt your dealing with. The reason I pose the question is that some people are lucky to live in areas where the dirt has no mineralization, and therefore they get optimal performance. For instance Florida has inert sandy soil, it's like hunting air, so a LTD or CZ can hit a 12" deep dime because they run a their peak, and I suspect a F70 with max sensitivity and maxed out threshold may well do the same. Unfortunately here the mineralization is such that if you ran the threshold into the positive you'd go mad from the noise, so you compromise with a lower threshold and less depth. 8" with the 11" DD was about max I ever saw from my F70, and it had to at be the right place (not EMI and low ground mineralization).
I really believe it all comes down to mineralization in your neck of the woods...units differ greatly from one to another and of course operator experimentation and abilities all come into play.
Lets face it F70 has a 9 3/4 inch concentric elliptcal coil and a F75 has a 11 inch double D coil so one would expect more depth in similiar situations.
My area has medium mineralization and have gotten 11-12 inch silver dimes with a CZ so imagine when I get done experimenting will have a deep seeking unit in its own right with minimal noise.
Last night using extremely low sens.(20) in DE pulled an 8 inch wheatie( remember I said F70's differ greatly from one to another) with little or no noise so its time to experiment with the SL feature among other aspects as I may have a lightweight depth demon with minimal noise before its all over..
Lets face it F70 has a 9 3/4 inch concentric elliptcal coil and a F75 has a 11 inch double D coil so one would expect more depth in similiar situations.
My area has medium mineralization and have gotten 11-12 inch silver dimes with a CZ so imagine when I get done experimenting will have a deep seeking unit in its own right with minimal noise.
Last night using extremely low sens.(20) in DE pulled an 8 inch wheatie( remember I said F70's differ greatly from one to another) with little or no noise so its time to experiment with the SL feature among other aspects as I may have a lightweight depth demon with minimal noise before its all over..
Dan,
Sounds like you are doing well with the F70.
I have that 9 3/4 inch concentric elliptical coil too (advertised as the 10 inch elliptical) and my main gripe with it is that coins on slant or edge pinpoint off center with that coil. Sometimes way off center. That isn't true with the 11 DD. I have read some references to the 10 inch concentric elliptical coil being the one to use for the wet salt beach. I've only used the 11 DD so far with the F75 at the beach. It does very well, but my preference so far is a CZ with a big coil in that environment. I do need to spend some time with the 10 inch concentric elliptical at the beach on the F series. Not sure I'll pack the F series on the next trip ... but I might.
Keep us posted on what you are finding out with the F70.
tvr
Sounds like you are doing well with the F70.
I have that 9 3/4 inch concentric elliptical coil too (advertised as the 10 inch elliptical) and my main gripe with it is that coins on slant or edge pinpoint off center with that coil. Sometimes way off center. That isn't true with the 11 DD. I have read some references to the 10 inch concentric elliptical coil being the one to use for the wet salt beach. I've only used the 11 DD so far with the F75 at the beach. It does very well, but my preference so far is a CZ with a big coil in that environment. I do need to spend some time with the 10 inch concentric elliptical at the beach on the F series. Not sure I'll pack the F series on the next trip ... but I might.
Keep us posted on what you are finding out with the F70.
tvr
i use a f70 its a hell of a good detector
just takes a little time to understand its lingo
heres a video of me detecting the beach
ive found piles of coins & lots of coins with my f70
http://www.youtube.com/watch?v=-aT7IES1U3I
good hunting im sure you will love the f70
walt
just takes a little time to understand its lingo
heres a video of me detecting the beach
ive found piles of coins & lots of coins with my f70
http://www.youtube.com/watch?v=-aT7IES1U3I
good hunting im sure you will love the f70
walt
Dan-Pa. said:
Dan a 8" wheatie with a 20 sensitivity is amazing! Do you recall what the threshold was set to? Also was that the stock coil or the 11" DD? The guy I got my F70 from lived in Florida and claimed he could get similar depths with low sens/threshold settings, which I was never able to achieve here, so obviously my soil's a lot hotter. I think you'll like the SL mode, unfortunately it's a crawling mode (I believe this mode is identical to the boost/cache mode on the F75 LTD except they put a faster microprocessor so didn't have to creep along, unless you want to).
Also when you got 11-12 inch silver dimes on your CZ, what coil were you using? I love my CZ70, although I haven't gotten a silver coin that deep with it yet (although I suspect it would hit one if it were there). Love that light tell tale "ping" the CZ makes on deep silver
HH,
Brian
I'd trade you ground conditions in a minute Dan! Either you have butter for earth or one awesome F70, or somewhere in between the two. One of the areas I like to work had one of my all time favorite ground scrapes. This spot ahd been hunted hard for 30 years. When the park people decided to add a small parking area they cut down 6-8 inches of ground. It was a bed of visible and just barely buried coins all from 1890 to about 1920. I was using the CZ-5 at the time and was freaked out by the number of these coins missed by many years and many md'ers.
Within 25 feet of this parking area, seemed the same way, you could not detect a coin deeper than about 5-6 inches. Past this magic marker I had dug many 8-10 inch coins and other relics. I've used the F70 there a good deal to see what I could unmask but so far it's only produced shallower coins in the easy area though some were nice oldies. That was why I tried that giant SEF butterfly coil, no luck there, that dog don't hunt. So now I'm waiting on the 5" coil and hoping to snipe some of those goodies in the 6" range from the dirty area.
It's amazing how much stuff is still within what should be easily targeted range in some places. FG usually sets the same for both of the described areas I'm talking about, right around 58-62.
Within 25 feet of this parking area, seemed the same way, you could not detect a coin deeper than about 5-6 inches. Past this magic marker I had dug many 8-10 inch coins and other relics. I've used the F70 there a good deal to see what I could unmask but so far it's only produced shallower coins in the easy area though some were nice oldies. That was why I tried that giant SEF butterfly coil, no luck there, that dog don't hunt. So now I'm waiting on the 5" coil and hoping to snipe some of those goodies in the 6" range from the dirty area.
It's amazing how much stuff is still within what should be easily targeted range in some places. FG usually sets the same for both of the described areas I'm talking about, right around 58-62.
Seems to me all F70's are not created equal or tuned equal and of course mineralization differs in our own neck of the woods. Actually think mine is a tad Bass backward as seem to get better depth with low sens. My mineralization averages 75-80...
Threshold was at 0 and iron, tabs and zinc were notched out as was eperimenting for a good local parks mode and not superior depth and unit was really quiet with a peep now and then so now to move onto the SL mode for superior depth with a reasonably quiet unit. Using the stock(10) coil....
As far CZ's go always used the stock 8 inch spyder coil...always thought the 10 was heavy and made unit nose heavy with more coverage but little increase in depth..actually don't want to dig any deeper and the 12 inch Sunray although no longer made was a dandy hipmounted.
Well any input especially on the SL mode appreciated and hitting the bricks today so perhaps will hit on a SL setting. Newbie on this unit and still learning but all will fall into place somewhere down the road.
Gee have tried them all except the V3 and E-trac so lets hope my previous experience prevails as this is sure a lightweight, large meter, excellent user friendly controls
unit with excellent battery life...
Threshold was at 0 and iron, tabs and zinc were notched out as was eperimenting for a good local parks mode and not superior depth and unit was really quiet with a peep now and then so now to move onto the SL mode for superior depth with a reasonably quiet unit. Using the stock(10) coil....
As far CZ's go always used the stock 8 inch spyder coil...always thought the 10 was heavy and made unit nose heavy with more coverage but little increase in depth..actually don't want to dig any deeper and the 12 inch Sunray although no longer made was a dandy hipmounted.
Well any input especially on the SL mode appreciated and hitting the bricks today so perhaps will hit on a SL setting. Newbie on this unit and still learning but all will fall into place somewhere down the road.
Gee have tried them all except the V3 and E-trac so lets hope my previous experience prevails as this is sure a lightweight, large meter, excellent user friendly controls
unit with excellent battery life...