VLF stands for Extremely Reduced Frequency and is identical technological know-how Employed in detectors created for coins, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from three kHz to 70 kHz. Listed here are five explanations why you may perhaps go with a VLF about a http://inquisnower.phorum.pl/viewtopic.php?p=754093#754093