VLF means Really Lower Frequency and is similar technologies Employed in detectors created for coins, jewellery, and relics. VLF detectors broadcast at frequencies measured in kilohertz ranging from 3 kHz to 70 kHz. Here's five main reasons why you may pick a VLF over a PI Disclosure: A number of http://classichonda.phorum.pl/viewtopic.php?p=178966#178966