Hand-held navigation radio with CDI for VOR and localizer

A hand-held aviation airband navigation radio having a housing sized to be held in one hand while in use, a battery pack associated with the housing, a keyboard associated with the housing to facilitate tuning the radio to an RF frequency in the aviation airband, and circuitry associated with the housing and operatively coupled to the keyboard and the battery pack to facilitate electronic communication on the tuned RF frequency, the circuitry including means for tuning the radio to a selected frequency in the aviation airband, transceiver means for voice communication when the radio is turned to a COMM frequency in the aviation airband and circuit means for determining one of (a) degrees off a radial when the radio is tuned to an aviation airband frequency corresponding to a VOR frequency, and (b) deviation from a localizer track when the radio is tuned to an aviation airband frequency corresponding to a localizer frequency, the radio further including display means carried by the housing and coupled to (i) the means for tuning for digitally displaying the selected frequency and (ii) circuit means for digitally displaying in a graphical manner a course deviation indicator (CDI) corresponding to one of the degrees off a radial and deviation from a localizer track responsive to when the radio is tuned to one of the VOR frequency and the localizer frequency, respectively.