VLF means Incredibly Lower Frequency and is similar technological know-how Employed in detectors crafted for coins, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from 3 kHz to 70 kHz. Here i will discuss 5 explanation why you may perhaps go with a VLF about a http://leydis16.phorum.pl/viewtopic.php?p=1041985#1041985