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2.5 Parameter Input
Parameters can be input by number keys, up and
down direction keys and knob.
2.5.1 Number Keyboard
Figure 2-4 View of Number Keyboard
Number keyboard are composed of following parts:
1. Number keys
0~9 number keys are used to directly input parameter
values required.
2. Decimal point
When inputting parameters, press this key, and a
decimal point "." is inserted at the position where current
cursor is.
10
3. Symbolic key
Symbolic key "-" is used to change symbols of parameters.
4. Unit keys
Unit keys include GHz/dBm, MHz/dBm, kHz, Hz, s, and
ms. After inputting digitals, press required unit key to
finish the input of parameters.
2.5.2 Knob
Functions of knob include:
1. When parameters are under editable state, rotate knob
to increase (clockwise) or decrease (counterclockwise)
values of parameters in specific stepping.
2. When editing file names, knob is used to select different
characters on the soft keyboard.
3. Realize some simple auxiliary functions during
measurement.
Figure 2-5 View of Knob
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