The 6041 has four of the most commonly used test instruments you need when installing or maintaining your microwave system. A selective level meter with ?0.2 dB accuracy at carruer frequencies. A wide band level meter gives you the opportunity to measure total power output of a base band with the same ?0.2 dB accuracy. A signal counter provides highly stable ?0.4 PPM accurate frequency readings with a selected filter. A frequency counter, using a Temperature Compensated Crystal Oscillator Module, is as accurate as the Signal Counter from 300 Hz to 3.5 MHz.