HP-Agilent/Keysight 8901A

The 8901A modulation analyzer combines the capabilities of several RF instruments to give complete, accurate characterization of modulated signals in the 150 kHz to 1300 MHz frequency range. It very accurately measures modulation and recovers the modulation signal, determines RF frequency and measures RF power. Features: Measures AM and FM to 1% accuracy Measures RF frequency Measures RF power Low internal noise Completely automatic