In regards to jewelry hunting???? Am I missing something? I've heard it referred to as an exceptional unit for " inland jewelry hunting". Why? What techniques does it allow you to do, that for example...a F70 can't do? Would the higher frequency F70 not be hotter on gold as well?? Fill me in on what I'm missing. I am a jewelry and ring hunter so maybe I could upgrade to a more suitable unit if I knew why? What setting or feature set on the F5 make it........exceptional for inland jewelry hunting...details please. And a big thanks for your replies.
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What makes the F5 special.....................
- Thread starter Ivan
- Start date
Big Boys Hobbies
Well-known member
I think allot of people like the F5 due to all the adjustments it has.
Mike Hillis is the authority here on the term "inland jewelry" hunting. Hopefully he pops in and gives his very valuable 2 cents worth. 
Personally, I'm still learning all the little quirks the F5 has, but the more I learn, the better the machine has become. I started with it finding hardly anything, now in the half hour a day I get to hunt I average 45 cents clad. Considering I'm only hitting tot lots, think I'm doing alright.
Personally, I'm still learning all the little quirks the F5 has, but the more I learn, the better the machine has become. I started with it finding hardly anything, now in the half hour a day I get to hunt I average 45 cents clad. Considering I'm only hitting tot lots, think I'm doing alright. BobbyBridge
New member
For me it was and still is the best mid range M D I would want. I can tweak it just how I want on the fly. when I lay it down and there is some chatter I just turn gain knob down, and when i get up and go again just dial back where I was instantly! Ooh there is much more!
Ivan
Basically the F5 is two detectors in one. In the disc mode it's your basic turf coin hunter. When you put it in all metal it acts very much like
a gold prospecting machine. In other words you hunt with a threshold, and it's the slight changes in the threshold that allowes you to pick up
the very small pieces of jewelry. The advantage it has over the gold machines is that it has 4 tone id plus a Tid # and target icon in all metal.
I still prefer my Whites Gmt to hunt jewelry, because it is a way more sentive and I can use the % iron scale as a form of disc.
But if you don't have a need for a gold machine the F5 is a pretty good substitute.
Hope this helps
Tom
Basically the F5 is two detectors in one. In the disc mode it's your basic turf coin hunter. When you put it in all metal it acts very much like
a gold prospecting machine. In other words you hunt with a threshold, and it's the slight changes in the threshold that allowes you to pick up
the very small pieces of jewelry. The advantage it has over the gold machines is that it has 4 tone id plus a Tid # and target icon in all metal.
I still prefer my Whites Gmt to hunt jewelry, because it is a way more sentive and I can use the % iron scale as a form of disc.
But if you don't have a need for a gold machine the F5 is a pretty good substitute.
Hope this helps
Tom
TerraDigger
New member
If you do a search on this site using the name..........Mike Hillis.............all your F5 questions will be answered in detail.
texasranger
New member
Ivan said:
*************************************
Hello there Ivan.
May I add some extra comments to the good replies already submitted.
Though your query is apparently straight forward, any answerer's can only be general rather than absolute..
You are correct in the assumption that your F70 at 13 KHz is operating at the 'better' frequency for finding targets IT CAN REACH.
The prior sentence's bold lettering highlights one of the critical variable.
At some particular depth...and depending on the Fe soil contents......an F5 at its lower frequency, will make a better trip in reaching the deeper targets.
NOW YOU CAN APPRECIATE THE IMPORTANCE OF PAYING ATTENTION TO THE F5's Fe GRAPH
So whilst the F70's higher frequency offers more 'sensitivity' to targets in good soil/sand, the F5 may make up for its lesser target sensitivity by actually reaching deeper than its higher frequency brother,..... in poorer ground conditions.
Also, there is the question of the target's THICKNESS beside its conductivity.
A thicker gold ring etc., can respond BETTER to 7 KHz than 13 KHz....
Thicker targets respond optimally to lower frequencies.
So Ivan, there are several variables involved in answering your questions......and the answers depend not simply as to whether a target is jewelery etc., but also its mass and the soil conditions and depth in which it may be buried.
That then leads to the inevitable conclusion.....THERE IS NO PAT ANSWER.
Now you may appreciate why the modern trend is to offer multiple-frequency machines.
You can search for jewelery and coins, but you have no absolute knowledge as to what is the best frequency for the wide-range of such targets possibly involved.
It must therefore be a compromise using a single frequency, whereas, more frequencies offer a better chance.
Despite that involved comment, we have not even touched on the other issues, like junk discrimination etc......All a function of the operating frequency !!!!
So Ivan, I make no apology for repeating the fact that there is no short simple answer.....but rather a realisation/understanding of the many factors involved based on the frequency used......
I have and use both the Fisher F75 and the F5, and their usage is based more on WHERE I detect, (ground conditions and ferrous junk contents), rather than what I expect to find....Tex
p.s. I have been 'banned' from the White's V3 forum for offering 'technical' replies......Larry says I "blow smoke up his 'rse".
I sure that this forum's administrator is more savvy .............
Mike Hillis
Well-known member
Hi Ivan,
Hard to make a detail response from work.
The short response is that the F5 is inherently more stable than the F70, has a "gold" tone in the 4 tone audio option, and can be ran stable and super hot at low gain settings. I take the F5 chain hunting in turf sod laid down over black sand minerals. I couldn't take the F70 chain hunting in same location due to the inability to get it quiet AND hot. You can't hunt chains and listen to any type of chatter.
To be honest, the F70 reminded me too much of the F75 and I didn't keep it long.
My setup for jewelry hunting in my turf sites consist of a high positive threshold (+5), gain raised to highest point where EMI is inaudible. Ground balance spot on, then I put a 2MM brass BB on the ground, and then balance out my gain until I can hear it best. Sometimes my ground minerals are so strong that I'm required to lower the gain down into the 30's. But it still runs hot even at that low of a gain setting. So in a nutshell, the F5 gives me a gold tone for rings, runs hot and stable in minerals with low gain settings for chains and open earrings, posts, pendants. And it has a very fixed and reliable ferrous/non ferrous boundary.
HH
Mike
Hard to make a detail response from work.
The short response is that the F5 is inherently more stable than the F70, has a "gold" tone in the 4 tone audio option, and can be ran stable and super hot at low gain settings. I take the F5 chain hunting in turf sod laid down over black sand minerals. I couldn't take the F70 chain hunting in same location due to the inability to get it quiet AND hot. You can't hunt chains and listen to any type of chatter.
To be honest, the F70 reminded me too much of the F75 and I didn't keep it long.
My setup for jewelry hunting in my turf sites consist of a high positive threshold (+5), gain raised to highest point where EMI is inaudible. Ground balance spot on, then I put a 2MM brass BB on the ground, and then balance out my gain until I can hear it best. Sometimes my ground minerals are so strong that I'm required to lower the gain down into the 30's. But it still runs hot even at that low of a gain setting. So in a nutshell, the F5 gives me a gold tone for rings, runs hot and stable in minerals with low gain settings for chains and open earrings, posts, pendants. And it has a very fixed and reliable ferrous/non ferrous boundary.
HH
Mike