I bought some 433mhz senders and receivers and some 433 mhz antennas. Unfortunately I don't know where to solder the antennas.
Where do I solder the antennas to and do I need special solder wire?
Pictures of the sender module
Pictures of the receiver module
I tried to solder an antenna onto the sender (into the hole in the bottom left hole in the front picture), this resulted in the signals no longer being sent correctly. I could see that data was sent because the receiver did receive data, but it was not the data i sent with the sender.