HDguy 0 Posted December 8, 2009 Does anyone know why the input impedance on all channels of a geo system with a GV-loop card is dropped to 37 Ohms? Share this post Link to post Share on other sites
Soundy 1 Posted August 5, 2010 How are you determining it's 37 ohms? A standard multimeter won't properly measure impedance. Share this post Link to post Share on other sites