Frank in NH
Active member
n/t
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How is the F19 as a coin hunter to anyone using it? Any depth on high conductor coins?
- Thread starter Frank in NH
- Start date
The f19 a great job coin hunter. It goes deep for copper and nickel. So far I haven't dug any dimes or quarters deeper than 7 inches. But there may not have been any. I've only had it since early October. I'm still trying to figure out the best set up for deep coins. Ive ordered a 5 inch coil to see if I can increase my coin finds. I bought the f19 for relics, but until I can get back to some old sites I'm coin hunting to get the feel for the machine.
Garry
Garry
The best way for me to answer that is by comparison with other models I have, or have used for the evaluation of the F-19 I initially acquired to check out. The main problems with your question ... "Any depth on high conductor coins?" ... are that:
> 'Depth' can mean different things to different people
> and achievable depth can vary a lot based upon the search coil used,
> the ground mineral content
> the ground mineral make-up such as dirt vs sand vs pea gravel vs rocks, etc.
> the position of the target to the coil position
> the need to reduce Sensitivity for EMI issues
> the Discrimination setting
> the Ground Balance setting
> the sweep speed used
.... and other factors.
There is also the way that most of us perceive just what 'depth' might be for day-to-day Coin Hunting, and what we typically determine to be a 'deep' coin vs a mid-depth or shallower coin. Often I find that people guess or imagine how deep a coin might be instead of knowing the likelihood for a coin to be at some particular depth.
So, I'll just share what I found using a Fisher F-19 and the two coils I compared it with prior to trading it for another brand detector I wanted to evaluate ... again. The first F-19 I got was impressive enough for the guy I dealt with to take it as a replacement for his Gold Bug Pro because it handled a dense iron nail setting better, and he hunts in nasty nail environments.
Okay, here are the notes I gathered from that F-19 "air test" depth of detection comparison. Note that I did these as others could hear them so I didn't use headphones. I know a quality set of headphones would certainly have helped, but likely would have helped each make and model compared. Thus, this rough speaker-response 'air test' is just what it is.
I used the following detectors:
Fisher F-19 w/5X10 DD stock coil
Fisher F-19 w/5" DD coil
White's MXT All-Pro w/9" Concentric 'spider' coil
White's MXT All-Pro w/6½" Concentric coil
White's MX5 w/6½" Concentric coil
White's Classic ID w/4½" Concentric coil
White's Classic ID w/6½" coil
Tesoro Bandido II µMAX w/7" Concentric coil
Tesoro Bandido II µMAX w/8" coil
Test US coins included one each of the following:
5¢, Zinc 1¢, Clad 10¢, Clad 25¢, silver Walking Liberty 50¢, and silver Morgan $1.
Comparison Test Conditions:
Indoor 'Air Test' in my den. EMI present and dealt with as described. All detectors were set a few feet off the ground on a cardboard box, and all search coils were oriented in the same position when tested. Coins were moved past the search coils at an 'average' seep speed rate and not extremely brisk or too slow. I used a sample rock to set the GB with a reading of 78.7 on the F-19. A plastic ruler was used to measure the hearable responses.
Results as described for each model and coil.:
F-19 w/stock 5X10 DD -- Sensitivity @ 100 EMI:
5¢ ... 8"
1¢ .. 7½+"
10¢ .. 7+"
25¢ .. 8¼"
50¢ .. 8¾"
$1 .. 9"
F-19 w/stock 5X10 DD -- Sensitivity @ 71 to just barley eliminate EMI noise:
5¢ .. 7+"
1¢ .. 6½"
10¢ .. 6½"
25¢ .. 6+"
50¢ .. 6¾"
$1 .. 6¾"
MXT All-Pro w/9" Concentric spider coil -- Sensitivity @ Maximum w/EMI:
5¢ .. 11+"
1¢ .. 9¾"
10¢ .. 9½"
25¢ .. 10¢
50¢ .. 10½"
$1 .. 11+ ¢
MXT All-Pro w/9" Concentric spider coil -- Sensitivity @ 'preset' marker to eliminate EMI noise:
5¢ .. 8¾"
1¢ .. 8"
10¢ .. 8"
25¢ .. 9"
50¢ .. 9½"
$1 .. 10"
MX5 w/6½" Concentric coil -- Sensitivity @ 10 bars + maximum w/EMI:
5¢ .. 8¾"
1¢ .. 8½"
10¢ .. 8"
25¢ .. 9"
50¢ .. 10"
$1 .. 10½"
MX5 w/6½" Concentric coil -- Sensitivity @ 8 bars to just eliminate EMI noise:
5¢ .. 8"
1¢ .. 7¾"
10¢ .. 7½"
25 .. 8½"
50¢ .. 8½+"
$1 .. 9"
Classic ID w/4½" Concentric -- Sensitivity @ Maximum .. No EMI as this is a weaker performance Classic ID:
5¢ .. 5½"
1¢ .. 5½"
10¢ .. 5"
25¢ .. 5½"
50¢ .. 6"
$1 .. 6"
Classic ID w/6½" Concentric -- Sensitivity @ maximum .. No EMI:
5¢ .. 5½+"
1¢ .. 6"
10¢ .. 5½+"
25¢ .. 6+"
50¢ .. 6¼"
$1 .. 6½"
Bandido II µMAX w/8" stock Concentric -- Sensitivity @ Maximum w/ EMI:
5¢ .. 8"
1¢ .. 7½"
10¢ .. 7½"
25¢ .. 8"
50¢ .. 8½"
$1 .. 8½+"
Bandido II µMAX w/stock 8" Concentric -- Sensitivity @ 10 just before Max Boost to eliminate EMI noise:
?? Similar results to Maximum sensitivity.
Bandido II µMAX w/7" Concentric coil -- Sensitivity @ Maximum w/No EMI:
5¢ .. 6¾"
1¢ .. 6½"
10¢ .. 6¼"
25¢ .. 7¼"
50¢ .. 7½"
$1 .. 7½+"
I will add this. I found some notes I had on a Teknetics G2, the same unit as the Fisher Gold Bug Pro, that I tested with the same set of coins and using a 5X10 DD and the very same 5" DD coil. I found that the F-19 I tested either matched the depth of the G2 or, in some cases, gave a slightly better read-out. Any 'test' is just what it is, a 'test', and we can only make of it what we feel satisfies us. I checked the F-19, which is promoted as being a "Relic Hunting" detector, to see how it handled my Nail Board Performance Test. This has been a proven measure that I have used for over twenty years now, and most Teknetics, Fisher and Bounty Hunter models flunk the test. So do most models from Garrett and Minelab, and some from White's as well.
There are four (4) iron nails positioned around an Indian Head or Zinc Cent just as I found them. The task is to just barely reject the four iron nails, then place a cent in the marked center position and see how well a detector might perform, sweeping from the left and from the right across 4 directions, making a possible 8 hits. The F-19 got 6 hits easily, and was reasonably iffy on a 7th direction. Much better than the G2/Gold Bug Pro so FTP did do some things to enhance its performance in a dense iron target environment.
So, there is the honest answer I can give you from my evaluation of the first F-19 I had, and the fellow I traded it to is still satisfied with how solid it is and how it performance afield for him.
Monte
> 'Depth' can mean different things to different people
> and achievable depth can vary a lot based upon the search coil used,
> the ground mineral content
> the ground mineral make-up such as dirt vs sand vs pea gravel vs rocks, etc.
> the position of the target to the coil position
> the need to reduce Sensitivity for EMI issues
> the Discrimination setting
> the Ground Balance setting
> the sweep speed used
.... and other factors.
There is also the way that most of us perceive just what 'depth' might be for day-to-day Coin Hunting, and what we typically determine to be a 'deep' coin vs a mid-depth or shallower coin. Often I find that people guess or imagine how deep a coin might be instead of knowing the likelihood for a coin to be at some particular depth.
So, I'll just share what I found using a Fisher F-19 and the two coils I compared it with prior to trading it for another brand detector I wanted to evaluate ... again. The first F-19 I got was impressive enough for the guy I dealt with to take it as a replacement for his Gold Bug Pro because it handled a dense iron nail setting better, and he hunts in nasty nail environments.
Okay, here are the notes I gathered from that F-19 "air test" depth of detection comparison. Note that I did these as others could hear them so I didn't use headphones. I know a quality set of headphones would certainly have helped, but likely would have helped each make and model compared. Thus, this rough speaker-response 'air test' is just what it is.
I used the following detectors:
Fisher F-19 w/5X10 DD stock coil
Fisher F-19 w/5" DD coil
White's MXT All-Pro w/9" Concentric 'spider' coil
White's MXT All-Pro w/6½" Concentric coil
White's MX5 w/6½" Concentric coil
White's Classic ID w/4½" Concentric coil
White's Classic ID w/6½" coil
Tesoro Bandido II µMAX w/7" Concentric coil
Tesoro Bandido II µMAX w/8" coil
Test US coins included one each of the following:
5¢, Zinc 1¢, Clad 10¢, Clad 25¢, silver Walking Liberty 50¢, and silver Morgan $1.
Comparison Test Conditions:
Indoor 'Air Test' in my den. EMI present and dealt with as described. All detectors were set a few feet off the ground on a cardboard box, and all search coils were oriented in the same position when tested. Coins were moved past the search coils at an 'average' seep speed rate and not extremely brisk or too slow. I used a sample rock to set the GB with a reading of 78.7 on the F-19. A plastic ruler was used to measure the hearable responses.
Results as described for each model and coil.:
F-19 w/stock 5X10 DD -- Sensitivity @ 100 EMI:
5¢ ... 8"
1¢ .. 7½+"
10¢ .. 7+"
25¢ .. 8¼"
50¢ .. 8¾"
$1 .. 9"
F-19 w/stock 5X10 DD -- Sensitivity @ 71 to just barley eliminate EMI noise:
5¢ .. 7+"
1¢ .. 6½"
10¢ .. 6½"
25¢ .. 6+"
50¢ .. 6¾"
$1 .. 6¾"
MXT All-Pro w/9" Concentric spider coil -- Sensitivity @ Maximum w/EMI:
5¢ .. 11+"
1¢ .. 9¾"
10¢ .. 9½"
25¢ .. 10¢
50¢ .. 10½"
$1 .. 11+ ¢
MXT All-Pro w/9" Concentric spider coil -- Sensitivity @ 'preset' marker to eliminate EMI noise:
5¢ .. 8¾"
1¢ .. 8"
10¢ .. 8"
25¢ .. 9"
50¢ .. 9½"
$1 .. 10"
MX5 w/6½" Concentric coil -- Sensitivity @ 10 bars + maximum w/EMI:
5¢ .. 8¾"
1¢ .. 8½"
10¢ .. 8"
25¢ .. 9"
50¢ .. 10"
$1 .. 10½"
MX5 w/6½" Concentric coil -- Sensitivity @ 8 bars to just eliminate EMI noise:
5¢ .. 8"
1¢ .. 7¾"
10¢ .. 7½"
25 .. 8½"
50¢ .. 8½+"
$1 .. 9"
Classic ID w/4½" Concentric -- Sensitivity @ Maximum .. No EMI as this is a weaker performance Classic ID:
5¢ .. 5½"
1¢ .. 5½"
10¢ .. 5"
25¢ .. 5½"
50¢ .. 6"
$1 .. 6"
Classic ID w/6½" Concentric -- Sensitivity @ maximum .. No EMI:
5¢ .. 5½+"
1¢ .. 6"
10¢ .. 5½+"
25¢ .. 6+"
50¢ .. 6¼"
$1 .. 6½"
Bandido II µMAX w/8" stock Concentric -- Sensitivity @ Maximum w/ EMI:
5¢ .. 8"
1¢ .. 7½"
10¢ .. 7½"
25¢ .. 8"
50¢ .. 8½"
$1 .. 8½+"
Bandido II µMAX w/stock 8" Concentric -- Sensitivity @ 10 just before Max Boost to eliminate EMI noise:
?? Similar results to Maximum sensitivity.
Bandido II µMAX w/7" Concentric coil -- Sensitivity @ Maximum w/No EMI:
5¢ .. 6¾"
1¢ .. 6½"
10¢ .. 6¼"
25¢ .. 7¼"
50¢ .. 7½"
$1 .. 7½+"
I will add this. I found some notes I had on a Teknetics G2, the same unit as the Fisher Gold Bug Pro, that I tested with the same set of coins and using a 5X10 DD and the very same 5" DD coil. I found that the F-19 I tested either matched the depth of the G2 or, in some cases, gave a slightly better read-out. Any 'test' is just what it is, a 'test', and we can only make of it what we feel satisfies us. I checked the F-19, which is promoted as being a "Relic Hunting" detector, to see how it handled my Nail Board Performance Test. This has been a proven measure that I have used for over twenty years now, and most Teknetics, Fisher and Bounty Hunter models flunk the test. So do most models from Garrett and Minelab, and some from White's as well.
There are four (4) iron nails positioned around an Indian Head or Zinc Cent just as I found them. The task is to just barely reject the four iron nails, then place a cent in the marked center position and see how well a detector might perform, sweeping from the left and from the right across 4 directions, making a possible 8 hits. The F-19 got 6 hits easily, and was reasonably iffy on a 7th direction. Much better than the G2/Gold Bug Pro so FTP did do some things to enhance its performance in a dense iron target environment.
So, there is the honest answer I can give you from my evaluation of the first F-19 I had, and the fellow I traded it to is still satisfied with how solid it is and how it performance afield for him.
Monte
Coin Rescue Inc
Well-known member
Great explanation there Monte!