I have been monitoring conventional transmissions for 10 years and have recently included trunked networks into my Uniden BCD396xt. I have all of Morris County programmed in, but I am new and need some clarification. I do not know exactly what "simulcast" is. I have all of NJ and Morris County trunked systems programmed in, except the simulcast "Channels" I still receive all transmissions (to my knowledge) just fine. I would also like to know, what the "sites" are? Is this the physical location of the repeater or tower?