Advertisement
Model 8902A
Operation
Special Function Cancellation.
Performing calibration cancels most Special Functions.
When Using the FM Calibrator to Calibrate Other Signal Analyzers.
The modulation waveform of the FM Calibrator is a rounded trapezoid. An signal analyzer, which
uses it as a calibration standard, must have demodulation and audio processing circuits which
preserve the full fidelity of the waveform.
Automatic FM Ranging.
When used to calibrate an RF signal analyzer, Special Functions 12.1 and 12.2 set the FM deviation
range to that of 0 to
40
kHz (Special Function 2.2). Upon exiting the FM Calibrator Special Function,
the audio ranging is not returned to automatic but remains fixed (thus leaving the
SPCL
light on).
Key in 2.0
SPCL
to return the audio ranging to automatic.
3-
185
Advertisement
Chapters
