%Copyright 2002 The Mobile and Portable Radio Research Group
%
%This code is part of the GUI package
fee = str2num(get(gcbo, 'String'));
if isempty(fee)
   set(AmpHandle5,'String',[]);
   set(AmpHandle6,'String',[]);
   set(DelayHandle4,'String',[]);
   set(DelayHandle5,'String',[]);
   set(DelayHandle6,'String',[]);
end