Agilent Technologies 8163A Manual page 201

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How to Use a Variable Optical Attenuator module Setting Attenuation and/or Power Levels
Number of Digits displayed
To select the number of significant decimal places displayed:
1 Press the [Menu] softkey.
2 Use the Cursor key to highlight <Number of Digits>, then press Enter.
3 Select <1>, <2>, <3> or <4>.
4 Press [OK], then press [Close].
Power Units
To select the units used to display power values:
1 Use the Cursor key to highlight a power parameter (P or P ), then press the
set ref
[Pwr Unit] softkey.
2 Select <W> or <dBm>.
3 Press [OK].
The menu item <Power Unit> is functionally equivalent to the
[Pwr Unit] softkey.
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Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Sixth Edition