i am interfacing RF(433Mhz) module with Arduino and facing a problem when Tx is not turned On then Rx receiving garbage Value that are showing on Serial terminal of arduino. how can we avoid these Garbage Value when Tx is not turned ON Help plz..
your Rx is floating get it balanced. check the connections!
If all your connections are right and still you get garbage values then , you may have pair these modules with HT12E and HT12D. Because 433 Mhz ASK receiver has very wide bandwidth of 2MHz which will pick up lot of noise .