AR Model DC2500AM1 is a high power ultra-broadband coupler with excellent performance characteristics over a range of more than 14 octaves. This dual directional coupler is a convenient means of simultaneously monitoring forward and reverse power in high power systems using normal laboratory oscilloscopes, voltmeters, power meters, and spectrum analyzers. Model DC2500AM1 is recommended for use with our A series amplifiers, and other amplifiers operating within the frequency and power range.