Nexus - Raised Threshold Using VCO Tones

Nexus has the only true threshold on the market when it comes to VLF/Induction balance metal detectors, what I mean by this is, when you're hunting using an audible threshold it will enable the machine to go deeper. This is actually what a threshold is designed for but in recent years with the digital bullshit the concept of the threshold has been confused and many people out there don't have a clue what a "true" threshold is. When I'm hunting in standard audio with my low frequency coils I always hunt with a raised threshold because I'm looking to go as deep as possible, I will suppress it if I'm hunting with my dual 20' because this specific coil is crazy deep without having an audible threshold. 

Threshold = Depth

When I hunt in iron using any of my high frequency coils I always hunt with VCO tones engaged and the meter turned off. Why Is This? the audio will always be faster than the meter and due to how nuanced the VCO tone is, it's easy to decipher both large iron and masked targets. This is especially important when using the MP V3 because it doesn't have an iron reject mode. Now the point I want to explain is this, a few years back in videos and blogs I've shown how I set my machines up to hunt in iron. I explain that I turn the threshold level down to mute "excess noise". Why Is This? because I'm not looking to go particularly deep, iron and depth don't really go together, but lets remember Threshold = Depth.

All Found Using VCO Tones With A Raised Threshold

Over recent months when I've been using my Nexus on the river, and going right back to my last few field hunts, when I'm searching in iron I'm now hunting with a raised threshold. Why Is This? because I want to punch down deeper in-between the iron to help me hear any potential non-ferrous targets that might be hiding. On the river when I'm swinging the 4' coil I have the threshold set to the 12 o'clock position, not only does this help with picking up tiny items it also allows the machine to pull the signals in-between and over protruding rocks, it will also detect targets through the rocks.

When the VCO and threshold are engaged you'll get a continuous tone that sounds like a 'wabble' and it will fluctuate gently as you swing. Large, medium and small nonferrous will give large and wide signal responses, tiny targets won't always give a solid high tone, they'll stay in the 'mid-tone' region, again, they sort of wabble and squeak without the VCO reaching it's highest point, deeper targets will be more modulated. For me when I hunt in this way it creates a multidimensional audio that enables me to really listen closely and study exactly what's going on underneath the coil. If you combine this with a low discrimination setting you've basically opened the ground right up and no message is being suppressed. Remember, Threshold = Depth.

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