The Agilent 8971C noise figure test set allows the 8970B to make noise figure measurements over an extended frequency range. Careful design and high-performance components, including a stable YIG filter, allow broadband single-sideband measurements from 10 MHz to 26.5 GHz with a single calibration and sweep. A low-noise preamplifier built into the noise figure test set lowers the second-stage noise figure, thereby reducing a major source of measurement uncertainty. Measurement modes in the 8970B allow for double down-conversion using the 8971C as the second downconverter.
Simultaneous gain and noise figure measurements for amplifier characterization
Easy to compensate for tuner insertion loss for transistor characterization
Only for use with the 8970B (cannot be used with the NFA series)