Coil & Ground field guide
Metal detecting technique
Improve your metal detecting technique with guides to coil control, target ID, settings, pinpointing and careful recovery on British fields and beaches.
Good technique is deliberately uneventful. Keep the coil level and close to the surface, overlap each sweep, move at a pace the detector can process and investigate repeatable signals from more than one direction.
Treat target ID as evidence, not an answer
Numbers vary between brands and can shift with depth, orientation, corrosion, mineralisation and nearby iron. Learn your machine with known objects, listen to the tone and repeatability, and avoid rejecting broad ranges simply to make a site quiet.
Recovery is part of detecting
Pinpoint before cutting, dig beside the estimated target rather than through it, and restore the ground as agreed with the landowner. Stop if the object or surrounding context suggests a significant archaeological find.
NEXT ROUTES
Continue from here
Build a consistent sweep
Set shaft length coil height speed and overlap for more complete coverage.
Open field note →Field noteChoose controls you can learn
Compare starter machines by the amount of adjustment they ask you to manage.
Open field note →Field noteCarry better recovery tools
Match the pinpointer and digging tool to the site rather than the catalogue.
Open field note →Field notePreserve the find context
Record location and condition before cleaning changes the object.
Open field note →Field noteUnderstand target ID
Combine the number with tone repeatability depth and a second sweep direction.
Open field note →Field noteSet discrimination carefully
Learn what accepted and rejected target ranges do before silencing uncertain signals.
Open field note →Field notePinpoint and recover cleanly
Narrow the target before cutting then protect the find and restore the ground with less disturbance.
Open field note →Field noteBalance for changing ground
Know when to use automatic manual or tracking balance on UK soil and beaches.
Open field note →Field noteSet stable sensitivity
Find the highest calm setting instead of chasing maximum gain and chatter.
Open field note →Field noteSeparate close targets
Understand recovery speed and its trade-off on iron-rich ground.
Open field note →Field noteUnderstand iron bias
Test the choice between fewer iron high tones and more audible mixed targets.
Open field note →Field noteRead difficult signals
Cross repeatable broken and one-way responses before deciding to recover.
Open field note →Field noteWork around iron
Separate a compact good response from nearby nails without muting the whole patch.
Open field note →Field noteGrid a field
Use measured lanes
Open field note →Field noteUnderstand detection depth
Learn why target size coil height and soil defeat one simple depth figure.
Open field note →Field notePut air tests in context
Use surface tests for controls and real ground for meaningful field decisions.
Open field note →Field noteBuild a test garden
Compare known modern targets and settings in a documented small practice lane.
Open field note →