help
 

hello , can i use the 75 mhz rc circuit to move my robot for the distance of 100 metres in radians , we are not allowed to purchase for the rc package which can be found inthe market. so i need the schematic of 75 mhz transmitter and receiver . can someone help me plz .
can anybody tell me how to change the frequency or range of a 27 mhz or 47 mhz to 75 mhz . thank u

help
 

try the r/c car or boat forum as that is the frequencies they deal with and may be of more help.