GRC script needs to change frequency to 137.100; self.LO_freq = LO_freq = 137.103e6

[jeffreypkelly]

If you are pulling your hair out trying to get an image from what looks like a good .s file -
check that the frequency is set to 137.100. The script still has it at 137.900 and will
not capture M2.
I just built a new meteor capture system using the cheap recon sentinel and noticed this.