Manticore Ferrous limits & Tones

[Karpykev]

Hi
I'm trying to get my head around Ferrous limits & tones on my new manticore.
I have had hammered and silver coins from the 2 fields that also contain a lot of iron and gun dog cartridges.
Im getting high tones pinging depite the TDI showing within the target is within the Ferrous limits (upper 6 lower 4).
Sensitivity and recovery speeds im happy with.
Should i be listening & digging these higher tones as I was expecing more grunt from those within Ferrous limits.
I suppose Dig & see might be the advice, however, I think i'd be constantly digging holes !

[fred]

Hi
I'm trying to get my head around Ferrous limits & tones on my new manticore.
I have had hammered and silver coins from the 2 fields that also contain a lot of iron and gun dog cartridges.
Im getting high tones pinging depite the TDI showing within the target is within the Ferrous limits (upper 6 lower 4).
Sensitivity and recovery speeds im happy with.
Should i be listening & digging these higher tones as I was expecing more grunt from those within Ferrous limits.
I suppose Dig & see might be the advice, however, I think i'd be constantly digging holes !

The Ferrous Limits don't work the way that you seem to think think that they do. As you raise Ferrous Limit 1 ordinary iron targets, like nails, are rejected. Ferrous 2 helps you spot other types of iron like bottle caps and odd shaped iron. Lots of iron still remains withing the open bit of the screen but often you can ID these by the iron sounds or target traces. Unless you have the Ferrous Limits set really high, which significantly reduces depth, you cannot always dig on sound alone, you need to look at the screen. Good targets generally appear along the centre line and in a few other places as a blob rather than a line. You just have to learn these by trial and error.

What detector did you use before and are you using All Metal?

[Alan Black]

It sounds like the high tones are iron breaking through the F1 limit which will sound as non-ferrous, so you may need to just raise F1 a little.

[Sven@1970]

A friend of mine has customized the ferrous limits depending on the ID of his favorite targets.
I personally think this is an unnecessary complication