VLF stands for Quite Very low Frequency and is identical technological know-how Employed 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 5 reasons why you could opt for a VLF about a http://inquisnower.phorum.pl/viewtopic.php?p=754096#754096