Okay the things is that I am using the sound-card and not the USB port to input my data from the sdr mixer. The problem I have is that how do I isolate my hardware device(sdr receiver) from noise generated by the PC (i think because of the many oscillators that a PC has). The problem is that the issue is not that the noise will enter in the interfacing portion. But that it will directly affect my SDR reception. Are there any good tips and techniques on how to make your PC electromagnetically silent(so that it does not radiate its own frequencies).
For those of you who want to see the affect do this: 1- shut down your pc and listen to any ordinary radio that you have availabe 2- no switch on the pc and "try" to listen to the radio. Just observe how the performance falls. yours truly, adnan yusuf
