private void MapAnalogChannel(DataMapping rawChannel, int slotIndex, ChannelList list, decimal freq)
{
bool isCable = (list.SignalSource & SignalSource.Cable) != 0;
AnalogChannel ci = new AnalogChannel(slotIndex, isCable, rawChannel, freq, c.SortedFavorites);
if (!ci.InUse)
return;
this.DataRoot.AddChannel(list, ci);
}