It is a possibility but is more difficult to obtain good results results of FM demodulation @10.7Mhz. Anyway I will try to demodulate FM directly @12Mhz. Instead of the?FM demodulator coil I can try to use a 12MHZ ceramic resonator. If the results are NOK then I will need to shift the BFO CLK0 to 11545Mhz and use the mixer from the Sa605 to get 455khz.?