This determines how deep the detector can "see." While it’s tempting to turn it to max, high mineralization in the soil can cause false beeps. Start at 75% and adjust as needed.

Sweep over the target from left to right, then turn 90 degrees and sweep again.

Based on the manual and user reviews, here are some pros and cons of the Orbitor Prospector 100:

Reduce sensitivity if:

Keep this article bookmarked. Better yet, print out the troubleshooting chart (Chapter 6) and tape it to the back of your control box. The ground is full of history; the Prospector 100 is your key, and the manual is your map. Now, get out there and swing low.

By following these steps, you can maximize the potential of your Orbitor Prospector 100. While it may not have the complex screens of modern high-end machines, its simplicity and reliable analog tech make it a fantastic tool for finding lost history right beneath your feet.

| Control | Function | |--------|----------| | | Rotate clockwise to turn on and increase volume. | | Sensitivity | Adjusts receive gain. Lower in high trash/mineralization. | | Discrimination | Sets the level of iron/foil rejection (0–100). | | Notch | Press to enter notch edit mode (accept/reject target segments). | | Ground Grab | Press and hold to perform quick ground balance. | | Pinpoint / Mode | Momentary press = pinpoint (non-motion). Hold 2 sec = toggle between All-Metal and Discrimination modes. | | Target ID Display | 0–99 (0–15 = ferrous, 16–40 = foil, 41–70 = nickel/gold, 71–99 = copper/silver). | | Depth Indicator | Arrows indicate shallow (1–2"), medium (3–5"), deep (6"+). |