Chapter 5
149
Functional Testing
Amplitude Accuracy at 50 MHz
Amplitude Accuracy at 50 MHz
Test Limits
Amplitude Accuracy should remain within
±
1dB of the measured source
value across the range of source levels and input attenuator settings.
Test Description
The amplitude accuracy test measures the absolute amplitude of the
instrument at 50 MHz. A synthesized signal generator is used as the
signal source for the test. A power meter is used to measure the signal
source output-signal amplitude throughout the test. The value
measured by the power meter is recorded as Input
i
. The input
attenuator of the UUT is set to various values and the source amplitude
is varied using the signal generator amplitude control. The signal
amplitude is measured by the power meter and the UUT at each setting
and the values compared. The difference between each pair of
measurements indicates the amplitude accuracy.
Required Equipment
(include cables and connectors)
Содержание E4406A
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