HP a-115 free download

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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?