[ivtv-users] hvr-1600, frame CRC mismatch - incomplete frame

[Devin Heitmueller]

On Tue, Mar 16, 2010 at 1:45 PM, Kyle Lil <kpl388 at msn.com> wrote:
> I just wanted to give a quick update in case anyone else is experiencing the
> same problem as me. I was able to reduce my glitch rate from about 2 per
> minute to approximately one every twenty minutes by changing the .qam_gain
> parameter in cx18_dvb.c from 0x02 to 0x01. Does anyone know what this does
> physically? Does this offer any insight as to what could be done to
> eliminate the remaining errors?
>
> Best,
> Kyle

Yeah, the mxl5005s has a pretty messy RF profile with regards to
finding the optimal tuning conditions that work properly for both
strong and weak signals.  It's not too surprising to find that
adjusting the gain could yield different results.

Can you please provide the SNR data for the both values of the
qam_gain (so I can see if you've got a strong signal or a weak one?).
In other words, do an azap, save the results, then change the qam_gain
and do another azap and save the results.

Thanks,

Devin

-- 
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com