your still not too clear, hope this helps,typically you want a matched receiver,example futaba radio/futaba receiver, also the receiver needs a christal to match the freq. of the transmitter the receiver christal can be changed relatively easy the transmitter not so you have to send it to the factory to have it done.
some brands will work with others but mostly you want to stick to one brand.
there are several transmitters that you can program, for flying multiple planes using one radio (one at a time of course) all you need to get is a flight pack for each plane your using, a flight pack has battery, receiver,and 4 servos,you can add more if needed mixing brands will work sometimes, your better off with sticking with one brand though. your question didn't have much info I was making a assumption. if you go into more detail I am sure you will find there is plenty of help out there in RCU land.