Other Analysis Bandwidth Specifications; If Spurious Response - Keysight M9290A Manual

Other Analysis Bandwidth Specifications

Description
a

IF Spurious Response

IF Second Harmonic
Apparent Freq Excitation Freq
Any on-screen f (f + f
IF Conversion Image
Apparent Freq Excitation Freq
Any on-screen f 2 × f
a.
To save test time, the levels of these spurs are not warranted. However, the relationship between the spurious
response and its excitation is described so the user can distinguish whether a questionable response is due to these
mechanisms or is subject to the specifications in "Spurious Responses" in the core specifications. f is the apparent
frequency of the spurious, fc is the measurement center frequency.
b.
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
c.
Mixer Level = Input Level - Input Attenuation.
Mixer Level
15 dBm
+ 22.5)/2
c
25 dBm
Mixer Level
 f + 45 MHz 10 dBm
c
20 dBm
Specifi
cation
c
IF Gain
Low
High
c
IF Gain
Low
High
Supplemental
Information
b
Preamp Off
50 dBc (nominal)
50 dBc (nominal)
68 dBc (nominal)
68 dBc (nominal)
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