Bird's Model 5000 THRULINE Digital RF Power Meter combines a digital display with the ability to accurately measure power in analog and digital RF systems. The Model 5000 operates over a broad frequency range and has the ability to measure True Average Power. The highly visible, backlit LCD display simultaneously shows forward and reflected power or other selected parameters in digital format, while a 20-segment analog bar graph tracks forward power readings. Readings can be expressed as Watts, dB Return Loss and % Match Efficiency. VSWR is automatically calculated from forward and reflected power for fast, convenient antenna checks.