VLF stands for Extremely Low Frequency and is identical technological innovation Utilized in detectors constructed for coins, jewellery, and relics. VLF detectors broadcast at frequencies calculated in kilohertz ranging from 3 kHz to 70 kHz. Here are five explanations why you may perhaps pick a VLF above a PI The http://leydis16.phorum.pl/viewtopic.php?p=1009617#1009617