HP HP 8753E, User Manual, Page: 648 / 699

Preset State
When the key is pressed, the analyzer reverts to a known state called the factory preset
state. This state is defined in 12-3. There are subtle differences between the preset
state and the power-up state. These differences are documented in 12-4. If power to
non-volatile memory is lost, the analyzer have certain parameters set to default settings
12-5 shows the affected parameters.
When line power is cycled, or the key pressed, the analyzer performs a self-test routine.
Upon successful completion of that routine, the instrument state is set to the conditions shown
in 12-3. The same conditions are true following a “PRES;” or “RST;” command over
HP-IB, although the self-test routines are not executed.
You also can
an instrument state and define it as your user preset state:
1. Set the instrument state to your desired preset conditions.
2. Save the state (save/recall menu).
3. Rename that register to “UPRESET”.
The key is now toggled to the selection and your defined instrument state be
recalled each time you press and when you turn power on. You can toggle back to the
When you send a preset over HP-IB, you will always get the factory preset.
You can, however, activate the user-defined preset over HP-IB by recalling the
register in which it is stored.
Preset State and Memory Allocation