2 Operating Your Frequency Counter
70 Keysight 53150A/151A/152A Operating Guide
Use the Selection keys as described below to change the state of these functions:
– When the annunciator ( ) in the display flashes, press the right-arrow key to
move the focus from the displayed menu function (or front-panel-key function)
to the setting for that function.
– Press the up- or down-arrow key to cycle through the available choices.
Press the Enter key to complete the setting. (If you change the setting of a
function, but you forget to press the Enter key, the setting of the function is not
changed.)
NOTE
The Sign key has no function and is ignored in menu selections and front-panel
functions that have state-change selections only.