I'm a newbie at DSP. I am starting a hobbyist project where I plan to monitor 100's of wildlife radio collar frequencies (at my job) and record how many "beeps" per minute are received. My software budget is zero. I have been starting to learn GNU radio and I find most of the tutorials are from 2012 and the many of the blocks are no longer here or soon to be deprecated (WX GUI). Also notice it is not a common tag on Stackexchange. Is GNU Radio a good choice for me?