The data-entry keypad is a multi-function key set permitting manual entry of data values,
measurement units and control codes.
The Units key must be used prior to keying a unit or multiplier. Where more than one unit is
available on a key, e.g. D/Q or V/A, pressing the key will display the first unit, pressing the key
again will display the second unit. Terminate the units mode with Enter to accept the key
sequence. Pressing Clear will delete the whole key sequence; pressing will delete the last
key press.
An invalid keypad entry will cause the entry line to be cleared and an error message, such as the
one shown in Figure 4-9, to be displayed. The existing settings will be preserved.
Figure 4-9 Example of an Error Message from an Invalid Keypad Entry
The +/- key may be used before or after a value to change its sign. If the key is pressed more
than once, the value will toggle between + and -. For numbers which are positive only, this key
is disabled.
4.2.4.1 Keypad Codes
A number of special functions are available by pressing Code followed by a valid code number
and terminated with Enter. The codes shown below are only available in the mode or menu
indicated.
Select fine frequency steps
Select coarse frequency steps
Hide V.I value in measurement mode
Show V.I value in measurement mode
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