VCO

[Rob (IL)]

This is Anne's quote.

I pretty much know what part is giving grief, but it's really a service issue at this point.

It is a used unit and a hardware problem.

 

[McMurphy]

This is Anne's quote.

I pretty much know what part is giving grief, but it's really a service issue at this point.

It is a used unit and a hardware problem.

by your command

That's to bad for the poster if it's true...

who the heck is Anne?

 

[Rob (IL)]

A famous Whites software engineer.

 

[Gene McNatt]

very new at detecting with the v3i..what benefit does turning on VCO have..i went into expert menu and had no problem selecting VCO and it remained in coin and jew even after turning off machine...gene

 

[Larry (IL)]

The V will remember what changes were made even when the battery is removed. The VCO ON will make pinpointing much easier and precise. Put a coin on the ground and pinpoint it, you will understand beter than I can explain it.

 

[gilfordberry]

VCO stands for "voltage controlled oscillator". What that means is that when you are in pinpoint, as you move your coil toward your target, the increased signal from the target is fed to the VCO circuit which converts the signal to a sound which gets higher and higher pitched rather than just louder as you approach closer. It's much easier to hear a change in the sound frequency (a higher note, if you will) than a change in loudness. A doubling of sound intensity (loudness - a 3 decibel change) is just about the minimum detectable by the human ear. But doubling the frequency of a sound increases the note by an entire octave - we can hear that change very easily. In short, while keeping the pinpoint trigger pulled, move your coil until you hear the highest note and you're right over the target with the "sweet spot" of your coil. Couldn't be easier.