    Tune Channel Screen
    ===================

        The following features are tunable from this screen :-
    
         VCO level        : This field holds the VCO modulation attenuator 
                            level, and controls the deviation associated 
                            with speech signals. 

         Mod level        : This field holds the Ref modulation attenuator 
                            level, and controls the deviation associated 
                            with sub-audio signals, ie PL signalling.

        For detail regarding the exact tune up procedures associated with 
    the modulation attenuator values, see the from Help for the tune channel 
    screen - <F2><F3><F1> from the main menu. 
        For further information on key usage or radio communications see help 
    for Radio Alignment, <F2> from main help menu. 
    




