Frequency or frequencies of metal detector....
Frequency in a metal detector is referred to in kHz. (kilo hertz). It is the number of times the signal is transmitted and received by the detector every second. For example a metal detector operating at 6 kHz will transmit and received 6,000 times per second, and at 50 kHz 50,000 times per second.
As a rule, lower frequency detectors offer better sensitivity to copper and silver and better overall detection depth and trash rejection. Most general purpose models operate at lower frequencies. Higher frequency detectors are more sensitive to small metals and natural gold. However, they have difficulties with discrimination against nonferrous (not-of-iron) metals. Their sensitivity to small metals makes them tedious to use around trashy areas. Most gold prospecting detectors operate at higher frequencies.
back
As a rule, lower frequency detectors offer better sensitivity to copper and silver and better overall detection depth and trash rejection. Most general purpose models operate at lower frequencies. Higher frequency detectors are more sensitive to small metals and natural gold. However, they have difficulties with discrimination against nonferrous (not-of-iron) metals. Their sensitivity to small metals makes them tedious to use around trashy areas. Most gold prospecting detectors operate at higher frequencies.
back