On Thu, Nov 10, 2011 at 1:34 AM, Wang Ning <[email protected]> wrote:

> Hi, all,
>
> I am not sure if the timing example in
>
> gr-digital/examples/example_timing.py
>
> has some issues when using M&M timing recovery. In this example, if
> setting --mode=1
> we will run into
>
>        self.connect(self.src, self.rrc, self.chn, self.off, self.clk,
> self.vsnk_clk)
>
> where the channel output directly going into the M&M timing block, but I
> believe there must another 'Root Raised Cosin' filter between them to
> remove ISI?
>
> Regards
>
> Wang Ning
>

Yes, you're probably right. This code was originally meant just to exercise
the PFB timing recovery block, which does the RRC filtering itself. I just
added the M&M way later.

Thanks,
Tom
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