azsh07
Member
Since I got a couple questions on this and how the tone ID works with the discrimination I will post some pics and try and explain.
Now forgive some of the pics the flash would make some of the greyed out scale dissapear so i had to use it no flash and the pics on the last few are blurry but...you can see the greyed out scale I talk about. Withthe flash on they just dissapeared .
First understand that the discrimination meter runs from 0-100. However it is expanded on the lower end for iron and gold. So...the iron/foil changeover is around 40 on the scale. on most other machines it would be like around 15-20 give or take.
[attachment 156973 meter1.jpg]
Here is the meter while hunting in disc with no discrimination set. TID of 56 means we hit something around a tab or so. Lower right number displays ) discrimination so...all targets are a regular tone which on the Bug is a high tone.
[attachment 156977 meter2.jpg]
Here I have just touched the + discrimination pad and the upper scale around the TID scale has illuminated. I just set discrimination to 3 which is displayed in the lower right screen AND the bras on the meter scale have come up to 3. If you can see actually 0-2 is just greyed out not blank..but you will see this better later. So anything in disc range or TID range 0,1 or 2 will now make an iron grunt.
[attachment 156975 meter3.jpg]
Now I have increased discrimination to 38. This about the range of foil or gold breakover. The range below 38 (0-37) is greyed out meaning all targets here will be a low grunt which is all iron. So foil and up is high tone..iron low.
[attachment 156976 meter4.jpg]
Now I have increased discrimination up to 62 which is somewhere near zincs think ( give or take). The lower tone now takes from just above small foil to around tabs...so those targets are now w low grunt....but...below around 45 the display is blank meaning nothing responds in this range.
If you noticed the lower tone range encompassed a range of 40 numbers when set to foil. IE...when disc was set to 40 the lower range went from 0-40.
However as you increased the discrimination and got into the higher range the lower tone range shrunk to about 15-20 TID numbers.
Why you ask? Well simple...the machine has alot of iron linearity on the low end for gold prospecting I assume. It is tighter on the higher end. So iron range is well expanded. Foil and gold has a little less range width and then above that the range is more normal to most machines.
Therefore you do not need that lower grunt range to be as wide when you get into the range above gold and it shrinks proportionally as you kick the discrimnation up.
If you were to set the discrimination to like 70 or so the lower tone would now only run a range of like6-10....say 60-70 fow a low grunt and the 70 and above high.
Coins ID in a similar range on the upper end of the scale as other Fishers. So a silver dime is like 85 or so.
Now forgive some of the pics the flash would make some of the greyed out scale dissapear so i had to use it no flash and the pics on the last few are blurry but...you can see the greyed out scale I talk about. Withthe flash on they just dissapeared .
First understand that the discrimination meter runs from 0-100. However it is expanded on the lower end for iron and gold. So...the iron/foil changeover is around 40 on the scale. on most other machines it would be like around 15-20 give or take.
[attachment 156973 meter1.jpg]
Here is the meter while hunting in disc with no discrimination set. TID of 56 means we hit something around a tab or so. Lower right number displays ) discrimination so...all targets are a regular tone which on the Bug is a high tone.
[attachment 156977 meter2.jpg]
Here I have just touched the + discrimination pad and the upper scale around the TID scale has illuminated. I just set discrimination to 3 which is displayed in the lower right screen AND the bras on the meter scale have come up to 3. If you can see actually 0-2 is just greyed out not blank..but you will see this better later. So anything in disc range or TID range 0,1 or 2 will now make an iron grunt.
[attachment 156975 meter3.jpg]
Now I have increased discrimination to 38. This about the range of foil or gold breakover. The range below 38 (0-37) is greyed out meaning all targets here will be a low grunt which is all iron. So foil and up is high tone..iron low.
[attachment 156976 meter4.jpg]
Now I have increased discrimination up to 62 which is somewhere near zincs think ( give or take). The lower tone now takes from just above small foil to around tabs...so those targets are now w low grunt....but...below around 45 the display is blank meaning nothing responds in this range.
If you noticed the lower tone range encompassed a range of 40 numbers when set to foil. IE...when disc was set to 40 the lower range went from 0-40.
However as you increased the discrimination and got into the higher range the lower tone range shrunk to about 15-20 TID numbers.
Why you ask? Well simple...the machine has alot of iron linearity on the low end for gold prospecting I assume. It is tighter on the higher end. So iron range is well expanded. Foil and gold has a little less range width and then above that the range is more normal to most machines.
Therefore you do not need that lower grunt range to be as wide when you get into the range above gold and it shrinks proportionally as you kick the discrimnation up.
If you were to set the discrimination to like 70 or so the lower tone would now only run a range of like6-10....say 60-70 fow a low grunt and the 70 and above high.
Coins ID in a similar range on the upper end of the scale as other Fishers. So a silver dime is like 85 or so.
