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Hi Peeps, caveat i am new to sdr. i have just installed Pentoo. I have a RealTek R820T usb device. Gnu-radio works fine and the device detected. I am able get a FFT plot and Waterfall plot but i am only receiving noise in the Sub -60db to -90db range and i makes no difference if i unplug the antenna or not, ever on freq that i know have a signal (ie FM station). So there some kinda of problem rtl_test detect the device but i get this error: [R82XX] PLL not locked! i would loe some guidance on how to fix or if my prob might be something else.