Dear Ed Troy:

I don't have the PlutoSDR with me right now, so I cannot test it now, but a
few things to check:

-Make sure that your Pluto can go down to 90MHz alright; it is only rated
to operate on 325MHz - 3.8GHz, and not guaranteed to behave well on such
frequencies (even when you did made the changes).
-Try lower sampling rate; like 2MS/s. PlutoSDR is known to drop samples at
relatively high sampling rates (and yes, I do mean that 5MS/s is too high).
-Try lowering gain; FM signals can easily overload the frontend of such
devices.

If I replace that PlutoSDR source block with an Osmocom source block,
change the carrier frequency to my local station, and attach a different
radio, it works. (Can't test on a PlutoSDR now, as I do not have one with
me now).

Regards,
Kyeong Su Shin

On Fri, Dec 15, 2017 at 4:12 PM, Ed Troy <[email protected]> wrote:

> Hi,
>
> I have been trying to get my Pluto to work with WBFM, but I am not having
> any luck. I am attaching a grc file that I am pretty sure should work, but
> it does not. It just generates sporadic noise. I did the changes
> recommended to get the Pluto to work over a wider frequency range, and the
> results indicated that the changes worked. And, I have tried using the
> Pluto at higher frequencies to detect a WBFM signal, and it still does not
> work properly. So, I know it has to be something with my grc file.
>
> What am I doing wrong?
>
> Ed
>
>
>
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