RF Transmitter 433MHz

[Marvin_G]

What is the difference between RF Transmitter 433Mhz and 315Mhz besides it's frequency?

Can i just use a single copper wire as it's antenna? how long should i use to get better result?

[sahniana]

i think cytron already said that it is just the same except the antenna length and frequency. i use single core wire for my rf tx/rx 433 mhz module. frequency selection is your choice depends on the working environment.