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Coin shooting · old-coin settings

Build a calm detector. Then cover every lane.

Coin shooting means detecting with coins as the main target. There is no magic target ID or maximum-power setting. A repeatable signal, a clean search grid, and legal recovery beat one perfect number.

Build the setup Open the U.S. coin chart

A model-independent start

Seven controls. One change at a time.

MODEPark, Coin, or generalStart with a factory program you understand.
NOISERun noise cancelUse it when nearby electronics create chatter.
GROUNDBalance when neededTeach the detector what normal soil sounds like.
POWERStable sensitivityRaise it only while the detector stays usable.
SPEEDNormal recovery firstRaise a little when close targets blur in trash.
IRONLight rejectionWide rejection can hide coins beside iron.
TESTKnown coinAir-test and ground-test before the first lane.

A target ID is a clue, not a promise. Depth, angle, corrosion, mineralised soil, and nearby iron can move the number.

The recovery grid

Make the ground smaller than your memory.

  1. 01Parallel lanesOverlap each sweep slightly.
  2. 02Mark the signalShorten the sweep around its center.
  3. 03Turn 90°Test the same spot from another direction.
  4. 04Run the grid againEdge-on and masked coins may change.
  5. 05Recover cleanlySmallest allowed opening; refill fully.

After recovery, scan the hole and the loose soil. Close the surface and take sharp trash away.

Read the response

Listen beyond the target number.

What you hearWhat it may meanNext check
Compact signal, both directionsA coin-sized target is possiblePinpoint and recover if permitted
Good in one direction onlyTilted target or nearby ironTurn again; shorten the sweep
Broad or stretched soundLarge or shallow objectRaise the coil and rescan
Jumping ID, repeatable toneDepth, angle, trash, or soil effectTrust repeatability over one number
Chatter across the gridUnstable setup, soil, or interferenceNoise cancel, balance, or lower sensitivity

Ground and iron

Every adjustment buys one thing and costs another.

Mineralised soilGround balance, then lower sensitivity if needed.

A calmer detector may show more real information than a noisy one at full power.

Dense modern trashSmaller coil or slightly faster recovery.

Better separation usually trades away some depth.

Clean groundNormal recovery and a steady sweep.

A slower setting may add depth, but it can merge close targets.

Nearby ironKeep filtering modest.

Heavy rejection quiets iron but can hide a coin sitting beside it.

After a coin appears

Keep the next clue on the surface.

  1. 01

    Do not scrub it.

    Photograph both sides and the edge before cleaning.

  2. 02

    Record the find.

    Save diameter, depth, date, and the location privately while details are fresh.

  3. 03

    Identify the family.

    Use the U.S. coin chart, Roman chart, or hammered coin guide.

  4. 04

    Stop at a cluster.

    If several old coins or related objects appear, do not widen the hole. Check the local reporting route.

Source ledger

Checked against the original source.

Last source review: August 28, 2026. Rules and databases can change, so open the source again before acting.