HP 85671A Phase Noise Measurements Utility

The HP 85671A phase noise measurement utility is a downloadable program that transforms your HP 8560 series spectrum anaylzer into a phase noise tester. The HP 85671A removes the work in performing phase noise measurements.

The HP 85671A utility eliminates the time-consuming task of hand-drawing phase noise plots. To measure oscillator phase noise, you no longer need to spend time manually tuning your spectrum analyzer to multiple frequency offsets. You can quickly and easily generate graphs of phase noise (dBc/Hz) versus log offset frequency.

[ Features ]

Direct phase noise readout
Variable filtering
Calculation of RMS noise
Spot frequency measurements
Digitized hardcopy and storage

[ Specifications ]

Specifications shown are based on the operation of an HP 8560 E-series
spectrum analyzer.

Measurement Modes:            Log plot, spot frequency, RMS noise
Carrier Frequency Range
HP 8560E:                     100 Hz to 2.9 GHz
HP 8561E:                     100 Hz to 6.5 GHz
HP 8563E:                     9 kHz to 26.5 GHz
HP 8563 Opt. 006:             100 Hz to 26.5 GHz
Offset Frequency Range:       10 Hz¹ to <=100 MHz
Maximum Number of Decades:    5, whole decades only
Maximum Input Signal Level:   +17 dBm, Ref level = -50 dBc/Hz
Minimum Input Signal Level (for optimum dynamic range)
                              -17 dBm, offsets <=100 Hz
Measurement Accuracy (nominal)
Amplitude Accuracy:           ±2.5 dB, >=10 dB above system noise floor
Amplitude Repeatability:      ±1.5 dB, maximum filtering and 12 point smoothing
Log Graph Frequency Accuracy: ±5%
Filtering:                    4 levels available
Smoothing:                    12 pt (2%), 24 pt (4%)
                              48 pt (8%), 96 pt (16%)
RMS Noise Calculation:        RMS phase noise is calculated over a user-specified
                              integration range.
Number of Data Points Used:   All, 1/2, 1/4, 1/8
Data Storage:                 5 internal trace memory registers
Log Graph Hardcopy
Printer Output:               HP 3630A PaintJet, HP 2225A ThinkJet
Plotter Output:               HP 7225A/7440A/7470A/7475A/7550B

¹Minimum offset frequency is 10 times the minimum resolution bandwidth 
of the spectrum analyzer.

[ Ordering ]

HP 85671A Phase Noise Measurements Utility System Requirements: Mass Memory Module HP 85620A (Rev. C)¹ Spectrum Analyzer HP 8560A/E (firmware 890720 and later) HP 8561A HP 8561B/E (firmware 890720 and later) HP 8562A/B (firmware 890728 and later) HP 8563A/E ¹Revision B of the HP 85620A can be upgraded to Revision C with the HP 85620-60015 upgrade kit.

[ Key Literature ]