VLF means Quite Lower Frequency and is identical technological know-how used in detectors built for coins, jewelry, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from 3 kHz to 70 kHz. Listed below are five main reasons why you may perhaps decide on a VLF about a https://www.sociomix.com/c/ugc/deep-ground-search-using-metal-and-gold-detectors/971791767876968