Alphanumeric Keys

The Alphanumeric Keys enable entry of letters and numbers into the scratchpad. The +/- key alternates between a + and - for positive and negative figures. The slash key (/) is used to separate pairs of entries in the same data field (e.g., wind direction/speed: 270/110). The trailing entry of a pair must be preceded by a slash if it is entered alone, except for frequencies and identifiers entered on the RADIO NAV page.