[Discuss-gnuradio] FM SCA

[Matthew Ettus]

The code in hifi_fm now does FM SCA subcarrier demodulation.  However, I
can only find one station that actually has SCA, and that one (KQED
88.5) seems to have digital content.  Its hard to tune the sound quality
on digital data...

If anyone knows of Bay Area stations with SCA subcarriers which I could
point a good antenna at, please let me know.

Matt

P.S. If you change the #define in hifi_fm.cc, you can turn of SCA, and
get actual HIFI FM, (without the stereo).  The sound quality is pretty
good.

P.P.S.  One of the local Rap stations overdeviates their carrier so
badly, that the music from the main channel is audible on the SCA
bands.  The SCA receiver actually demodulates it by slope demodulation!