R&S FHS8 Spectrum Analyzer Calibration

[Kyoungmin Kim]

Hi,
I have a question about FSH8 Spectrum Ananlyzer Input Attenuator Calibration.
According to TO33K3-4-3702-1, It has +/-0.3dB Accuracy.
Between TO and Service Manual have different Method.
TO uses 9610A/9640A reference source, Manual uses Power Meter and Sensor.
Also they have different setting(SPAN, RBW, VBW, etc. TO is more delicate setting).
Actually I don`t have any problem with TO, but some technician have problem.
Does anybody have experience out of tolerance at INPUT Attenuator Calibration?

[Bryan]

Either way, 9640A is easier setup and adequate for the test.  R&S would be happier if you used equipment made by them.