looking to buy another Tx off of ebay. I know I should switch to 2.4, but there are some really great deals for FM tx's on Ebay. I need to know what I should look for. I would like to be able to fly all three planes off of one receiver. I meant to ask the instructor at the field on Sunday. I would like to be able to do like he does. He can mate his receiever up to any plane on the field. What kind ot FM receiver do I need to be able to that.