Tektronix 2715, Руководство пользователя

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Spectrum Analyzer Menus
2715 User Manual
6–63
You are warned if other settings are already stored as the user-defined
power-up. If there are old settings, you must delete them before you can
store the current settings.
a. To delete old settings, press [Y], and then [W] to confirm the deletion.
Then store the current settings.
5. Turn the instrument power off and back on.
During the standby period, the factory default power-up settings are
displayed, but immediately afterwards the settings you just stored are
automatically implemented.
At power-up the 2715 restores the user-defined power-up settings, if they exist,
following the standby period. If they do not exist, it uses the factory default
settings. If the user-defined power-up settings include a narrow span, the
NORMALIZATION SUGGESTED message may appear. The message should
disappear following warmup as soon as you use a control.
The remaining items on the Stored Settings/Displays menu can be used exactly
as you used USER DEFINED POWER-UP SETTINGS. The difference is that
they are not automatically implemented at power-up time, or by the initialization
selection; they must be recalled from the Stored Settings/Displays menu.
6. Press [INPUT] [9] to turn on the calibrator.
7. Press [CHAN/FREQ] [9] [0] [X] to change the frequency to 90 MHz.
8. Press [REF LEVEL] [3] [8] [.] [8] [Y] to set the reference level to 38.8 dBmV.
9. Press [DSPL] [1] to select ENSEMBLE AVERAGING.
10. Press [4] to select MEAN.
11. If the number of averages is not set to 16, press [7] and set number to 16.
12. Press [8] repeatedly until A register is selected.
13. Press [1] to save a 16 sweep ensemble mean in register A.
14. Press [MAX HOLD] [B].
15. Press [SAVE ENABLE] [B] to save the max hold values in register B.
16. Press [INPUT] [9] to turn off the calibrator.
17. Press [UTIL] to call up the Utility menu.
18. Press [1] to select STORED SETTINGS/DISPLAYS.
Other User-Defined
Settings