
AM Noise
Define Msrmnt
Instr. Params
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Frequency Parameters
Carrier Frequency is the fundamental (center) frequency of the device you
are measuring. The HP 3048A uses the Carrier Frequency entry to:
• Label the Carrier Frequency on the Results Graph.
• Calculate Sigma vs. Tau and S
y
(f).
NOTE
When loading a Result File for calculating Sigma vs. Tau,
the carrier frequency used for the measurement must be
entered in the Instrument Parameters display in order to
compute accurate values.
2-38 Instr. Params: AM Noise
rev.05SEP89
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