Second Harmonic Distortion; Third Order Intermodulation - Keysight M9290A Manual

b.
The stop frequency varies according to the option F03/F07/F13/F26 selected.
c.
The spurious response specifications only apply with the preamp turned off. When the preamp is turned on,
performance is nominally the same as long as the mixer level is interpreted to be: Mixer Level = Input Level  Input
Attenuation  Preamp Gain.
d.
Mixer Level = Input Level - Input Attenuation.
e.
The span is less than 10 GHz.

Second Harmonic Distortion

Description
Second Harmonic Distortion
(Input attenuation 10 dB)
Preamp Off
10 MHz to 3.75 GHz
(Input level –20 dBm)
3.75 to 13.25 GHz
(Input level –20 dBm)
Preamp On
(Input level –40 dBm)
a.
SHI = second harmonic intercept. The SHI is given by the mixer power in dBm minus the second harmonic distor-
tion level relative to the mixer tone in dBc.

Third Order Intermodulation

Description
Third Order Intermodulation
(Two 20 dBm tones at the input, spaced
by 100 kHz, input attenuation 0 dB)
20 to 30C
10 MHz to 2 GHz
2 to 3 GHz
3 to 7.5 GHz
7.5 to 13.6 GHz
13.6 to 26.5 GHz
Preamp On (OptionP03, P07, P13, P26)
(Two –45 dBm tones at the input, spaced
by 100 kHz, input attenuation 0 dB)
a.
TOI is verified with IF Gain set to its best case condition, which is IF Gain = Low.
b.
The distortion shown is computed from the warranted intercept specifications, based on two tones at –20 dBm
each, instead of being measured directly.
c.
Intercept = TOI = third order intercept. The TOI is given by the mixer tone level (in dBm) minus (distortion/2)
where distortion is the relative level of the distortion tones in dBc.
Specifications
Distortion SHI
–68 dBc +38 dBm
–75 dBc +45 dBm
Specifications
a
Extrapolated
b
Distortion
64 dBc
64 dBc
64 dBc
62 dBc
60 dBc
Supplemental Information
a
Distortion (nominal) SHI (nominal)
–80 dBc
–92 dBc
–60 dBc
Supplemental Information
Refer to the footnote for
Overlaps" on page 12
c
Intercept Extrapolated
Distortion
72 dBc
+12 dBm
74 dBc
+12 dBm
72 dBc
+12 dBm
70 dBc
+11 dBm
68 dBc
+10 dBm
+50 dBm
+62 dBm
+10 dBm
"Band
.
Intercept
(Typical)
+16 dBm
+17 dBm
+16 dBm
+15 dBm
+14 dBm
8 dBm
(nominal)
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