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65
power measurement. The method of setup is same as the setup of Swept SA.
Fig.3.65 Frequency setting
2. Amplitude
Pressing
AMPTD
key, the following menu will appear.
The default set of system is Auto level status. If the signal has relatively large fluctuations, the system will
automatically adjust the attenuator and amplifier, in order to make sure that the input power is ether too overload
or low. If the automatic level is OFF, user can modify the magnitude parameters manually, such as reference level.
Fig.3.66 Amplitude setting
1)
Reference Level
The function of Ref Level is same in a certain type of frequency scan. Changing the Ref Level only changes the
display position of wave, not the measurement of span power. The method the modify Ref Level is same as
spectrum scan. The follow 2 chats show the influence to wave when changing the Ref Level in same measurement
conditions.
Содержание S5800E Series
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