HP 8921A User Manual page 558

Cell site test set
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Error Messages
Text Only Error Messages
558
Operation errors generally occur when you try to do something the Test Set was not
designed to do. Most messages tell you what to do to correct the problem, (turn something
off, reduce a field's value, press a certain key,...and so forth).
Some common messages are listed here:
All self tests passed.
The Test Set did not detect any hardware or firmware failures during its initial self-
diagnostics. This message should always be displayed immediately after instrument turn
on.
Input value out of range.
A number was entered that was too large or small for the selected field, for example,
trying to set AFG1 Freq to 125 kHz.
Invalid keystroke.
You used a key that has no function relating to the selected field, for example, pressing the
[ON/OFF] key while the Filter 1 field is selected.
Option not installed.
You selected a function that requires optional hardware that is not present for example,
selecting TDMA TEST from the To Screen menu when you do not have an HP 83201A
or HP 83201B Cellular Adapter connected to the Test Set.

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