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MEASURING PHASE NOISE AND ADJACENT
CHANNEL POWER WITH THE 8901B
MODULATION ANALYZER.
Bob Burns
RF ~ Microwave
Measurement
Symposium
and
Exhibition
FliOW HEWLETT
a:~ PACKARD
www.HPARCHIVE.com
MEASURING PHASE NOISE AND ADJACENT
CHANNEL POWER WITH THE 8901B
MODULATION ANALYZER.
This paper describes a method for measuring
the phase noise of RF and microwave signals
using a new version of the 8901B modulation
analyzer. This approach is an extension of the
adjacent channel power measurements
commonly made on communications systems
signals, and actually measures total SSB noise at
offsets greater than 5 kHz away from the
carrier. Advantages and limitations of this
technique are discussed and compared with
other methods of measuring noise around RF
and microwave signals.
OUTLINE:
1. Why measure phase noise and/or adjacent 4. Limitations
channel power?