Pro AV & Projector Throw

Professional AV system designer's calculator — projector throw, signal levels, cable attenuation, dB and screen sizing, offline. PROJECTOR THROW • Throw distance from screen width and throw ratio • Screen width from throw distance • Zoom range and lens shift • 16:9, 16:10, 4:3 and custom aspect ratios SIGNAL LEVELS • dBV, dBu, dBm conversion • Voltage, power and impedance relationships • Balanced and unbalanced signal levels CABLE ATTENUATION • Signal loss by cable type and frequency • Maximum run lengths for HD-SDI, HDMI, VGA AUDIO • SPL at distance — inverse square law • Speaker sensitivity, power and coverage angle Offline — works without network.