4
Audio Analyzer Measurement Functions
208
Keysight U8903B User’s Guide
Format
Press the
Format
softkey to select the format of the returned measurement reading.
– Off
Selecting Off will return the measurement reading without any formatting (raw value).
– Logarithmic
Selecting Logarithmic will return the measurement result by using the following formula:
The result is returned in unit dBr.
– Linear
Selecting Linear will return the measurement result by dividing the measured level by the reference level. The result is
returned in unit x.
– Delta
Selecting Delta will return the meausrement result by deducting the reference level from the measured level. The result
is returned in unit
Δ
V. This is only available for the analog analyzer.
Set to 0dB
This is only available for the analog analyzer.
Press the
Set to 0dB
softkey to store the measured level as the reference level, and set the measurement reading format to
Logarithmic.
Set result as ref. from
Press the
Set result as ref. from
softkey to store the measurement result from the selected channel as the reference level.
Ref. Level
Press the
Ref. Level
softkey to set the reference level value. There is only one reference level for each channel.
Ref. Imp
This is only available for the analog analyzer.
Press the
Ref. Imp
softkey to set the reference impedance value. This setting is only available if the unit is set to W and
dBm.
Volt/FS
This is only available for the digital analyzer.
Press the
Volt/FS
softkey to set the volts/FS reference value.
Cal SPL
Press the
Cal SPL
softkey to set the calibrator level value. This setting is only available when the unit is set to dBSPL.
Even Harmonic
Press the
Even Harmonic
softkey to select the even harmonics.
– ALL
– 2
– 4
– 6
– 8
Odd Harmonic
Press the
Odd Harmonic
softkey to select the odd harmonics.
– ALL
– 3
– 5
– 7
– 9
Table 4-13
Analog/Digital/
Bluetooth
Analyzer > Functions > THD Level menu description (continued)
Menu
Description
20
10 Measured rms voltage
Reference level
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Содержание U8903B
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Страница 42: ...1 Getting Started 42 Keysight U8903B User s Guide LCD display Figure 1 4 U8903B LCD display 2 3 1 4 ...
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Страница 574: ...A Appendixes 574 Keysight U8903B User s Guide Figure A 11 Bluetooth generator sine waveform generation ...