In CW mode, phase noise degrades with frequency or phase modulation:
Harmonics:
<-55
dBc
at output levels
<+6
dBm
-50
-55
-60
Z-65
=-70
+-75
pilo
0 2
4 6
Carrier Frequency
(GHz)
a
10
Figure l-25. Typical 2nd Harmonic Levels Measured at Output Power of + 6
dBm
Non-Harmonic Spurious (13
kHz):
c-60
dEk (includes power supply and frequency synthesis
spurious).
Non-Harmonic
Spurious
(~3
khk):
<
-50
dBc
Sub-HarmonicsNone
Residual
FM:
At 1
GHz,
cl5
Hz
in 50
IIZ
to 15
kHz
bandwidth.
Residual
l?M
decreases
6
dB
per octave below
1
GHz.
8 12
Carrier Frequency (GHz)
16
20
Figure l-26.
Typical Residual FM Measured in 50
Hz
-
15
kHz
Bandwidth, CW Mode, with High
Stability Timebase (Option lE5)
HP
83731Bl32B
Specifications
l-25
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