It doesn't seem to be coming directly from the tuner so I guess its via the dsp device.

Any idea how I use the radio device, do you have any examples of reading signal strength from dsp (even if its wrong !)

I used trace_tuner=1 to work out what the software was doing, I used than information to write my radio code. I need to do it all again for AM but one thing at a time.

My code is now tuning in FM, seems to work but looks a little naff on the screen without the signal strength.

Thanks,
Jon