cyberquest
New Member
Hi All: Can anybody help. Who knows about R/C electronics.I'm new to r/c electronic transmitters,I purchase a radio control toy car kit to build,and it came with the schemayic for the TX and the RX.The car has a range of 40 to 50ft. I would like to increase that range to the max 1000FT. that is the max set by the FCC-PART-15. THEY STATED to me 1300ft =1/4 mile. BUT I don't need to go that far. A i know its more than 50 and 300ft. there are cars that can go 1000ft because i seen them and wittness this. Like the one i purchase can go 40-50ft that not far at all and has the same internal electronics as the ones that can go alot further. Can anybody tell me and explain to me. What i have to change on the circuit and which parts. Or just add to the circuit. This schematic can beseen at this website **broken link removed**. The manual is (rcc7k). Icould not post it my self on this forum do to i have no scanner to scan it at this time. Sorry. Thats why i inclued the website. I hope someone can help me who knows R/C Electronics. I would like to know what kind of circuit this transmitter is set up as,are the two transistors set up as a darlington pair,is it a emitter-fellower circuit.What kind of circuit is it set up as. is it a series-parallel or a series circuit. The right side of this transmitter. What i also need to know is the of this TX is how they calculated for the frequency with those parts they used,and the output amplifier is there a low-pass filter on its output stage.I know only some basic electronics and OHMS-LAWS. IF anybody could help me to understand to calculate the oscillator to set the frequency in the circuit.I would Apprecite any help and your time posted. PS the company i purchase this kit from they can not help me on this subject. I KNOW this is alot to ask. thank you for your help and any info you post. JJ..