can you build a r/c transmitter and reciver and how hard would it be?

i am wondering if you can build a radio transmitter and reciver from a remote control car from scratch. i would like it if the person who answers would post an instructable detailing how to do it.

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There's encoder/decoder chips that handle the multichannel R/C stuff; like the NE5044 (and NE5045?).   It could be feasible to graft those onto a one channel transmitter and receiver set salvaged from an R/C toy.  They may be obsolete, but someone has probably cloned them using a microcontroller by now.

You're better off to just buy a basic Futaba or Hitec AM transmitter and receiver.  Check with local hobby stores; they may have old stock or used gear.  Tower Hobbies has several new transmitter/receiver kits complete with servos for around $50.  Then you can concentrate on the fun of crashing your car or getting your model boat stalled in the middle of a pond due to feathers or weeds clogging the prop...
Acepilot427 years ago
have u cracked open a receiver or transmitter? if so, you will know a transmitter has a very complex circut board. a receiver just is very compact.
Re-design7 years ago
These days using Integrated circuits it's not nearly as hard as it was using transistors.  I used to have plans for a trans. and rec.  Just two channels and there were at least 200 parts in each.

You might be able to find a kit.  That would be the only way most elec. experimenters would tackle it.  There are certain parts the must match of you'll be transmitting way off and your receiver will be listening somewhere else if they even work at all.

Google "rc transmitter kit" and "rc receiver kit" and see what you find.

Ramsey electronics makes a lot of good kits and might have something along those lines.
LoneWolf7 years ago
Just so you know, I'm not sure about recievers, but I know that radio transmitters are veeeerrrryyyyy expensive to build from scratch.
They're CHEAP to build, but difficult to design well.
Same thing with receivers.


Well, their expensive for me by comparison to my income.

LoneWolf7 years ago