Keysight U8903B - Page 526

A Appendixes
526 Keysight U8903B User’s Guide
External Frequency
Sweep
(Signal Analysis)
Ref Channel – CH1 to CH8
Select the reference channel number. The phase
of each channel is measured against the reference
channel. The phase result for the reference
channel should always be displayed zero.
Harmonics
–All
–2 to 9
Select the harmonics count to be used in the THD
ratio and THD level results.
LPF
–None
–2 kHz
–3 kHz
–5 kHz
–8 kHz
– 10 kHz
– 15 kHz
– 20 kHz
– 22 kHz
– 30 kHz
– 40 kHz
– 50 kHz
– 80 kHz
– Custom
Select the low-pass filter.
HPF
–None
– 15 Hz
– 20 Hz
– 22 Hz
– 30 Hz
– 50 Hz
– 70 Hz
– 100 Hz
– 200 Hz
– 300 Hz
– 400 Hz
– Custom
Select the high-pass filter.
Weighting
–None
–A
– CCIR 1k
– CCIR 2k
– CCITT
– C-Message
– Custom
Select the weighting filter.
Deemphasis
–None
– 50 μs
– 75 μs
– Custom
Select the de-emphasis filter.
Table A-28 Measurement settings > External Frequency Sweep menu tree description (continued)
Tab Level 1 Level 2 Level 3 Description