If you’re one of the lucky ones to own one of these detectors, then this two part instructional video might help you. I’ve designed/modified and built a pistol grip that enables the operator to comfortably carry the detector for hours on end. Coupled with the HP Ipaq 212 Enterprise model PDA it becomes an awesome machine. Studying bats brings on a new dimension when you can see the actual ‘real time’ calls while looking at the PDA screen.