VLF means Really Very low Frequency and is similar engineering Utilized in detectors built for coins, jewelry, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from 3 kHz to 70 kHz. Listed here are five explanation why you may pick a VLF around a PI Second, Be https://www.lycantic.com/forum/viewtopic.php?f=2&t=1612793