As far as I am concerned this is one of the most important topics in the first half of the User's Manual. I have to understand why there is any need for more than two tones or three at the most. We need one for iron and another for everything else. It makes it fun to have a third one for the stuff between iron and silver but that is about it. I have connected a chromatic tuner to the headphone output and there are not as many "tones" as what we think because we get mixed up about tones, pitch, and notes.
Anyhow, if we think of the tones and the the Smarfind screen it makes it a little easier. We also need a piece of iron, nickle, and a silver coin for this adjustment. If we are using Conductive sounds then threshold tone sets the lowest tone at the bottom of the screen. Limits sets the highest tone at the top of the screen. Variability adjusts how well we can discern differences in the pitch of sounds between these two tones up and down the screen.
If we use Ferrous sounds then threshold tone sets the left side of the screen for the lowest tone, which is iron, and the right side is set with limits for the highest tone. Variability adjusts how well we can discern differences in the pitch of sounds across the screen.
Give this a try and take a piece of iron about the size half a horseshoe. I use one out of a can of junk iron I have collected. Most iron in the soil is rusted so I like to use the half of a horseshoe for this. Clear the screen in by going to IM-16 and sweep the coil over the iron and adjust the threshold tone up and down. This is threshold tone and not threshold level! The most ferrous iron and the lowest tone is going to be set by adjusting threshold tone. I set this in ferrous since I hunt with ferrous sounds but it really does not matter if we use conductive sounds to hear the difference in low tones we can set. Now we pick the one we like because we are going to hear it a lot. I set it as low as it will go because I hunt with a threshold by having the Nails area open. A low tone does not sound as loud as a high one even if they are at the same volume. With Audio Gain set to 4 and a almost a constant threshold the sound for iron is heard but is at the same tone as the threshold so they kind of blend together. This is how to get away from all that banging sound from iron if we use all metal detecting or a constant threshold. Use the nickel and silver coil to set limits and variability for the way you like to hear the difference between iron and silver an so a nickel is easy to pick out.
That awful loud screeching sound with limits and variability maxed out is more than this old guitar player can stand. It sound like a very poor fiddle player or the last time my dog caught the neighbors cat. Think about this in that if it is not iron are we going to dig it up to see what it is? If we are then we only need two tones one for iron and one for all other targets. I guess we can Xray our Christmas package to see what is in them before we open them so tones is like shaking the box and trying to guess what is in them. The only way we really know is to open the box. Well, that is the extent of my thinking that all we really need are two tones but I shake the box with three. A deep low tone for iron, a mid tone all that aluminum and good targets that hit in the right size of the screen in non-ferrous and a high one for silver. This is correct for Ferrous Sounds. (I reject the bottom right of the screen, screw caps, so the highest tone is now for silver at the upper one half of the right side of the screen.
I don't read any post of using constant sounds. I think that is a mistake because we get conditions with tones. If we use constant sounds then we are going to dig a lot of junk but find a lot of good stuff we have been walking right past tying to Xray the box. We no longer miss rings, all kinds of jewelry, and coins. However, as I indicated I am too lazy to go back to that style of hunting but it is worth trying to see what we find. Pick an area we have hunted and use constant sounds and dig everything.
Conductive sounds don't really make sense to me for two reasons. It is based on Conductivity and SIZE. A piece of iron, steel, silver or any alloy will have the highest tone if it is highly conductive or if it is largest in size. It is the ferrous content that makes sense to me. Silver and gold have ferrous content because of the metal they are alloyed with. It is ferrous content across the screen that tells me about the goodies in the box. Silver is all the way to the right and iron all the way to the left. So, I use Ferrous sounds and Conductive might as well not be an option.
Have a great Saturday and find a gold coin,
Anyhow, if we think of the tones and the the Smarfind screen it makes it a little easier. We also need a piece of iron, nickle, and a silver coin for this adjustment. If we are using Conductive sounds then threshold tone sets the lowest tone at the bottom of the screen. Limits sets the highest tone at the top of the screen. Variability adjusts how well we can discern differences in the pitch of sounds between these two tones up and down the screen.
If we use Ferrous sounds then threshold tone sets the left side of the screen for the lowest tone, which is iron, and the right side is set with limits for the highest tone. Variability adjusts how well we can discern differences in the pitch of sounds across the screen.
Give this a try and take a piece of iron about the size half a horseshoe. I use one out of a can of junk iron I have collected. Most iron in the soil is rusted so I like to use the half of a horseshoe for this. Clear the screen in by going to IM-16 and sweep the coil over the iron and adjust the threshold tone up and down. This is threshold tone and not threshold level! The most ferrous iron and the lowest tone is going to be set by adjusting threshold tone. I set this in ferrous since I hunt with ferrous sounds but it really does not matter if we use conductive sounds to hear the difference in low tones we can set. Now we pick the one we like because we are going to hear it a lot. I set it as low as it will go because I hunt with a threshold by having the Nails area open. A low tone does not sound as loud as a high one even if they are at the same volume. With Audio Gain set to 4 and a almost a constant threshold the sound for iron is heard but is at the same tone as the threshold so they kind of blend together. This is how to get away from all that banging sound from iron if we use all metal detecting or a constant threshold. Use the nickel and silver coil to set limits and variability for the way you like to hear the difference between iron and silver an so a nickel is easy to pick out.
That awful loud screeching sound with limits and variability maxed out is more than this old guitar player can stand. It sound like a very poor fiddle player or the last time my dog caught the neighbors cat. Think about this in that if it is not iron are we going to dig it up to see what it is? If we are then we only need two tones one for iron and one for all other targets. I guess we can Xray our Christmas package to see what is in them before we open them so tones is like shaking the box and trying to guess what is in them. The only way we really know is to open the box. Well, that is the extent of my thinking that all we really need are two tones but I shake the box with three. A deep low tone for iron, a mid tone all that aluminum and good targets that hit in the right size of the screen in non-ferrous and a high one for silver. This is correct for Ferrous Sounds. (I reject the bottom right of the screen, screw caps, so the highest tone is now for silver at the upper one half of the right side of the screen.
I don't read any post of using constant sounds. I think that is a mistake because we get conditions with tones. If we use constant sounds then we are going to dig a lot of junk but find a lot of good stuff we have been walking right past tying to Xray the box. We no longer miss rings, all kinds of jewelry, and coins. However, as I indicated I am too lazy to go back to that style of hunting but it is worth trying to see what we find. Pick an area we have hunted and use constant sounds and dig everything.
Conductive sounds don't really make sense to me for two reasons. It is based on Conductivity and SIZE. A piece of iron, steel, silver or any alloy will have the highest tone if it is highly conductive or if it is largest in size. It is the ferrous content that makes sense to me. Silver and gold have ferrous content because of the metal they are alloyed with. It is ferrous content across the screen that tells me about the goodies in the box. Silver is all the way to the right and iron all the way to the left. So, I use Ferrous sounds and Conductive might as well not be an option.
Have a great Saturday and find a gold coin,