[linux-dvb] [PATCH] AverMedia AverTV DVB-T 761

Joe Orton joe at manyfish.co.uk
Tue Sep 13 12:04:13 CEST 2005


On Sat, Sep 10, 2005 at 06:57:02PM +0200, Johannes Stezenbach wrote:
> Hm, that's not the real fix, there seems to be another bug.
> Can you try the following patch:

I had a play with this since I also see poor quality with my 761 card, 
trying cpump values of 1, 2 and 3 for the 470..750Mhz range with your 
patch to also do cpump << 6.

I ran tzap for 60 seconds on a mux at 665Mhz and recorded all the ber 
values, extracted into a spreadsheet:

cpump	1	2	3
average	13804	6071	5365
median	9618	5494	4758

which is still not exactly great but it seems cpump=3 gives the best 
results; I'll do some more testing with this patched driver and report 
back later in the week.  If there's anything else it would be useful to 
test let me know.

Regards,

joe



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