433Mhz RF link kit


I have a small question i try to use two kit for bidirectional communication(not in the same time exchange) but i not succeed to exchange data is.

Is it normal or do i do something wrong ?

I try to start with example code from virtual wire librairy.

When i add the second transmitter i lost receive data on the other device



You can adjust the another module of sliding rheostat to see if it can receive any data.