i am using wireless (RF) to communicate with 2 mc, the rx-er using is NT-R07A (taiwan product), i only get some odd ascii code. i am advice to build a low pass filter that has a cut of frequency of 9600 Hz so i would able to get the correct characters i send.
but the basic formula of filter is f(cut off)=1/2piRC, so the RC=1.66*10^-5,
i try many diff value of R and C to match this value but still cannot works. any suggestion ?
thks for reading ^_^