I run the Hitec SRX 75mhz FM radio in all my boats. Not too bad, only about $100-130. I used the Hitec Aggressor FM before (same recievers) with no problems but i switched to the SRX since it has 10 model memory so i can use the same radio for everything. You can get the Aggressor for like $80. You can get both from Tower Hobbies, or from many companys on Ebay.