Would a 2.5 m coil frame work?

[Carl-NC]

Wait a second, does this mean that the control unit is small and won't be visible for the coil if I create shoulders straps and make this a one man device?

If you minimize large pieces of metal, then yes.

[kt315]

Link, please. Or is it easy to find?

easy for the Guru, not for beginners. Cache Test - Geotech Forums (geotech1.com)

Tests of big depth metal detectors ( TR and PI systems ) - Geotech Forums (geotech1.com)

[Altra]

Link, please. Or is it easy to find?

Search "Cache Test" started by Carl. Sorry I'm posting from my phone and don't know how to cut and paste links.