The Keysight 83036C is a broadband microwave power sampler which operates in much the same way as a directional coupler and detector combination. It is comprised of a resistive bridge and gallium arsenide planar-doped barrier detecting element which yield excellent frequency response, superior temperature response and square law response characteristics over a broad band. With a 10 MHz to 26.5 GHz frequency range, a single Keysight 83036C can be used in many applications where two directional couplers and detectors were once required -- such as in broadband power monitoring and source leveling. The maximum SWR is 1.7 above 50 MHz on both the input and output ports. Directivity of 14 dB matches that of most miniature couplers currently available. The maximum insertion loss is 2.2 dB. The Keysight 83036C has been used with great success as the sampling element for external leveling of broadband swept frequency sources.