rtlsdr software defined radio
scratchpad by asbesto
Compiling stuff is a pain in the ass.
Do not use the dvb drivers on the CD or your OS. Those are for the dvb mode and not the debug mode that outputs raw samples. Linux 3.x kernel should check with "$ lsmod dvb_usb_rtl28xxu" and if found at least "$ sudo modprobe -r dvb_usb_rtl28xxu" to unload it. Be careful about gnuradio-3.7 installs that may leave behind problem files.
LNB_LO = 5.4 nel default.conf o nel setup, cosi' e' centrato in frequenza.
quindi per tuning di rai radio3, 98.7 bisogna settare
rtl_fm -f 98.7M -W -s 200000 -r 32000 - | aplay -r 32k -f S16_LE
The maximum range you can view on the waterfall is determined by the sample rate of the input device. If the input device is set to 200 kHz, then the waterfall can show up to 200 kHz. Since you are using an RTL2832 dongle you can set the input sample rate up to about 2.4 MHz, which will give you a corresponding bandwidth on the waterfall. But to view the entier 20 MHz range from 88 to 108 MHz you need to use a receiver that can sample with 20 MHz rate (+ a very fast computer).
Gnuradio is something different.