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I have GUI that controls the N9320B via GPIB.  My GUI allows the user to select between Center/Span and Start/Stop freq and the display on the SpecA should reflect the users choice.  This worked on the now obsolete Agilent SpecA that has been replaced by the KeySight N9320B.  The KeySight display changes between Center/Span and

I recently cheaply got an HP8590b spectrum analyzer (front panel says 50ohm, but option menu says 001, 75ohm) having a dead battery and booting with an error (0030-00000000). After replacing the battery, the instrument does not boot anymore: I have to remove the battery, short the supercap (by a resistor) to <1v and again it boots (with the
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We are using E5052B to measure the output phase noise of a DDS module. At 300.01MHz output the measured Phase Noise at 10 KHz offset is -142dBc/Hz. However, when I configure the DDS module for 300MHz Output, phase noise will increase to -130dBc/Hz (12dB Difference). The only difference between these two tones is several near-carrier spurs (less