The HP 11729 C Carrier Noise Test Set, combined with an HP 8662 A (opt. 003) synthesized signal generator and a baseband spectrum analyzer, form a complete broadband measurement system for phase noise and AM noise testing of microwave oscillators, 10 MHz to 18 GHz, HPIB controllable. It always includes 0,005 to 1,28 GHz coverage, one more band is determined by the option. The HP 11729 C/8662 A combination includes the critical low noise microwave reference signal (which determines the system noise floor). The built-in SAW (Surface-Acoustic-Wave) oscillator allows the 11729 C to be used as a frequency discriminator system for measurements on free running oscillators. This discriminator mode uses the HP 11729 C in a "stand-alone" configuration, combined with a simple length of external delay line (such as RG 223 cable) and an available baseband analyzer (such as the HP 8566 A/B or HP 3561 A). options 003 5-1280 MHz and 1.28-3.2 GHz operation 007 5-1280 MHz and 3.2-5.76 GHz operation 011 5-1280 MHz and 5.76-8.32 GHz operation 015 5-1280 MHz and 8.32-10.88 GHz operation 019 5-1280 MHz and 10.88-13.44 GHz operation 023 5-1280 MHz and 13.44-16.00 GHz operation 027 5-1280 MHz and 16.0-18.0 GHz operation 130 AM noise detection 140 Rear panel connector 907 Front panel handle kit 908 Rackmount flange kit 909 Front panel handle & rackmount flanges