HP 3048A Operating Manual page 33

Specifications
System Phase Noise and Spurious Responses
The internal noise of the HP 3048A was designed for the
measurement of even very low-noise reference sources.
The following graph shows the phase noise and spurious
response levels specified for the system.
The specified response does not include the phase noise or
spurious signal contributions of a reference source.
-80
-100
-120
-140
-160
-180
0.
Spurious Responses CdBc)
• ^ P h n s e Noise (<£<f ).dBc/Hz)
01 0.1 1 10 100 Ik 10k 100k 1H 10M 4C
OFFSET FREQUENCY (Hz)
Figure 1-5. Graph of System Phase
Noise and Spurious Responses
f
c
<10MHi
I H
1-26 Getting Started
rev.24JAN90