Set the Amplitude
Spectrum Master UG PN: 10580-00277 Rev. E 3-5
3-4 Set the Amplitude
Press the Amplitude main menu key to display the Amplitude menu.
Setting Amplitude Reference Level and Scale
Spectrum Analyzer and Interference Analysis Modes
1. Press the Reference Level submenu key and use the Up/Down arrow keys or the keypad
to change the reference level. Press Enter to set the reference level value.
2. Press the Scale submenu key and use the Up/Down arrow keys or the keypad to enter
the desired scale. Press Enter to set the scale value.
Setting Amplitude Range and Scale
1. Press the Adjust Range submenu key to set an optimal reference level based on the
measured signal.
2. Press the Scale submenu key.
3. Enter the desired scale units by using the keypad, the arrow keys, or the rotary knob.
Press the Enter key to set. The y-axis scale is automatically renumbered.
Note
To change the current measurement units, press the Units submenu key and
select the required units from the submenu keys that are presented. Press the
Back submenu key to return to the Amplitude menu.
Note
The Scale parameter cannot be changed when linear units are selected (Watts or
Volts). Press the Amplitude submenu key and select Auto Atten coupling of the
attenuator setting and the reference level to help ensure that harmonics and spurs
are not introduced into the measurements. Attenuator Functions are described in
the Spectrum Analyzer Measurement Guide.
Note
This setting applies to most demodulator modes of instrument operation. The
Spectrum Analyzer mode has no equivalent to Auto Range. For other analyzer
modes, consult the individual measurement guides. Refer to
Appendix A, “Measurement Guides”.
Note
To have the instrument continually set the optimal reference level, press the
Auto Range submenu key so that On is selected.
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