function [ref_c ref_p ref_a] = getRefFreq(drmMode)

switch drmMode
	case 'A'
    ref_c = [18 54 72];
    ref_p = [205 836 215];
    ref_a = sqrt(2)*ones(1,3);
	
	case 'B'
    ref_c = [16 48 64];
    ref_p = [331 651 555];
    ref_a = sqrt(2)*ones(1,3);
	
	case 'C'
    ref_c = [11 33 44];
    ref_p = [214 392 242];
    ref_a = sqrt(2)*ones(1,3);
	
	case 'D'
    ref_c = [ 7 21 28];
    ref_p = [788 1014 332];
    ref_a = sqrt(2)*ones(1,3);
	
	case 'E'
    ref_c = [];
    ref_p = [];
    ref_a = [];
    error ('Implement Mode E!');
    
end;