Keysight U8903B, Service Manual

Page: 45 / 165

Performance Verification for Analog Analyzer 3
Keysight U8903B Service Guide 45
1 Connect the function generator to the U8903B input channel 1 (3, 5, or 7) and 2 (4, 6,
or 8) via the Unbalanced connection as shown in
Figure 3-4 . The BNC-to-banana jack
adapter and the BNC male-to-female T splitter is used for this connection. Preset both
the U8903B and function generator.
Figure 3-4 Function generator to U8903B connection for phase accuracy verification
2 Configure the function generator as follows:
– Output Load: High-Z load
– Output polarity: Normal
– Waveform function: Sine wave
– Amplitude unit = Vrms
– Amplitude offset = 0 V
3 Configure the U8903B input channel 1 (3, 5, or 7) and 2 (4, 6, or 8) as follows:
– Connection type: Unbalanced
– Input bandwidth: 90 kHz
– Input coupling: AC
– Voltage detector type: RMS
– Trigger source: Immediate
– Reference channel: Channel 1 (3, 5, or 7)
– Multi-channel function: Phase
– Input Range:1 V
– Sample size: 131072
4 Set the function generator to produce a sine wave with amplitude of 1 Vrms and
frequency of f
IN
as given in the “ Test record for phase accuracy verification ” on
page 111 .
5 Enable the function generator output.
6 Record the phase measurement on the U8903B input channel 2 (4, 6, or 8) in the “ Test
record for phase accuracy verification ” on page 111 .
Unbalanced output
channel 1, 3, 5, 7
U8903B audio
analyzer
Function
generator
Unbalanced output
channel 2, 4, 6, 8