VLF means Extremely Reduced Frequency and is the same know-how used in detectors crafted for coins, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz starting from 3 kHz to 70 kHz. Listed here are 5 main reasons why you would possibly go with a VLF in excess https://divekeeper.com/forums/discussion/general-discussion/metal-detector-tips-for-forest-exploration