What is a cheap way to receive and record on PC several (tens) of fm-radios (public, e.g. news, music, etc)? Such radios uses frequencies like 90.4 MHz or 102.7 MHz, sends a stereo (sometimes with digital text subchannel).
If I want to record tens of radios, I need to cover a spectrum of tens of MHz.
The first way is to buy two or three dozen usual radiorecievers and try to connect them all to PC (e.g. with half-dozen of multichannel external usb soundcards). I think, that this is not very cheap.
The second way is to build a single radio, which will downsample entire band 88-105 MHz into 3-20 MHz, then feed it into high-speed ADC, and do a software detection of each station.
Is the second way possible? cheap? How mush will it cost?
What hardware can be used, if I have no skills of making PCBs and using ADCs & FPGAs?