[linux-dvb] Preliminary support of Hauppauge Nova-T 500 Dual (take 2)

Jose Alberto Reguero jareguero at telefonica.net
Mon Sep 18 19:29:00 CEST 2006


El Lunes, 18 de Septiembre de 2006 17:59, Patrick Boettcher escribió:
> On Mon, 18 Sep 2006, Jose Alberto Reguero wrote:
> > El Domingo, 17 de Septiembre de 2006 22:28, Patrick Boettcher escribió:
> > > Hi all,
> > >
> > > I just updated my .dib0700 repository, it should now work with both
> > > channels.
> > >
> > > I have very good reception with this card at my home (25 dB C/N). If
> > > anyone encounters problem with reception, please compare the perfomance
> > > of the card with the Windows driver.
> > >
> > > It could be, that the reception of the card is bad when you are very
> > > close to the transmitter (due to an amplifyer (LNA), which in always on
> > > now). Please report if this might be the case for you.
> > >
> > > good luck and report success or failure,
> > > Patrick.
> >
> > Driver works well with both tuners, with the card ID 2040:9950.
> >
> > I have a few reception problems especialy with one frecuency:
> >
> > using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> > reading channels from file '/root/.tzap/channels.conf'
> > tuning to 770000000 Hz
> > video pid 0x0065, audio pid 0x0067
> > status 03 | signal aa6d | snr 0000 | ber 001fffff | unc 00000012 |
> > status 1b | signal aa4e | snr 0000 | ber 001fffff | unc 00000000 |
> > FE_HAS_LOCK status 1b | signal aab7 | snr 0000 | ber 001fffff | unc
> > 00000000 | FE_HAS_LOCK status 1b | signal aa98 | snr 0000 | ber 001fffff
> > | unc 00000000 | FE_HAS_LOCK status 1b | signal aa42 | snr 0000 | ber
> > 001fffff | unc 00000000 | FE_HAS_LOCK
> >
> > I can't compare with windows(I have not Xp). Maybe bad signal.
>
> Hmm, can you try to change line 70 in dib0700_core.c to set GPIO0 to 0
> instead of one and see if it is better on this frequency.
>
> regards,
> Patrick.

I think you mean line 70 in dib0700_devices.c

dib0700_set_gpio(adap->dev, GPIO0, GPIO_OUT, 0); msleep(10); // LNA

It work better for me. I can tune all the channels.

Thanks.
Jose Alberto



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