Operating instructions

University of Saskatchewan
Electrical Engineering Laboratory Equipment Manual
Amplitude Calibration Procedure
For operation on the 10Hz, 30Hz, 100Hz, or 300Hz resolution bandwidth.
(a) Turn the instrument on and allow 20 minutes for warm up.
(b) Set the 3580A controls as follows:
Display…………………………………………………….Store and Blank Store out
Amplitude Mode…………………………………………………..…Log 10dB/division
Amplitude Ref Level…………………………………………………………….Normal
dBV / Lin – dBm Switch………………………………………….………dBV / Linear
Input Sensitivity……………………………………………………………………...Cal
Vernier………………………………………………………………....Cal ( Fully CW )
Frequency……………………………………………………………….…….…10 kHz
Start CTR…………………………………………………………………centre (CTR)
Bandwidth………………………………....10 Hz – 300 Hz ( resolution to be used )
Display Smoothing…………………………………………………………………..Min
Freq. Span / Div……………………………………see Amplitude Calibration Table
Sweep Time / Div…………………………………..see Amplitude Calibration Table
Sweep Mode………………………………………………………..…repetitive (REP)
(c) Adjust the front panel 10 kHz CAL potentiometer so that the peak of the 10
kHz signal is exactly at the top reference line.
(d) Set the Amplitude Mode to Log 1dB/div. Repeat step (c).
(e) Set the Amplitude Mode to Log 10dB/div. Repeat step (c).
(f) Set the Amplitude Mode to Log 1dB/div. Repeat step (c).
Amplitude Calibration Table
Bandwidth settings Freq. Span / Div Sweep Time / Div
10 Hz -------------- 20 Hz -------------- 0.5 sec
30 Hz -------------- 0.1 kHz -------------- 0.2 sec
100 Hz -------------- 0.5 kHz -------------- 0.1 sec
300 Hz -------------- 1 kHz -------------- 0.02 sec