[linux-dvb] New dib3000mc and AverTV DVB-T USB 2.0

Patrick Boettcher patrick.boettcher at desy.de
Sun Sep 10 17:16:34 CEST 2006


Hi,

It seems like I made the mistake while converting the drivers. As the 
mistake has no impact on my Nova-T USB2 I didn't noticed. But for you it 
improves the situation...

Can you send it as a patch, please?

Patrick.

On Sat, 9 Sep 2006, Jose Alberto Reguero wrote:

> I have a bad signal and with the old driver I have better performance.
> I try the new driver with the old agc paramas and get good results.
> Old params:
>         {       0x0051, 0x301d, 0x0000, 0x1cc7, 0xdc29, 0x570a,
>                 0xbae1, 0x8ccd, 0x3b6d, 0x551d, 0x000a, 0x951e
>         }, /* TUNER_PANASONIC_ENV57H13D5, TUNER_PANASONIC_ENV57H12D5 */
> 
> I change:
> static struct dibx000_agc_config dib3000p_panasonic_agc_config = {
>         .setup     = (0 << 15) | (0 << 14) | (1 << 13) | (1 << 12) | (29 << 
> 0),
> 
>         .agc1_max = 56361,
>         .agc1_min = 22282,
> //      .agc2_max = 43254,
>         .agc2_max = 47841,
>         .agc2_min = 36045,
> 
> //      .agc1_pt1 = 0x65,
>         .agc1_pt1 = 0x3b,
> //      .agc1_pt2 = 0xff,
>         .agc1_pt2 = 0x6b,
> 
> //      .agc1_slope1 = 0x40,
>         .agc1_slope1 = 0x55,
> //      .agc1_slope2 = 0xff,
>         .agc1_slope2 = 0x1d,
> 
>         .agc2_pt1 = 0,
> //      .agc2_pt2 = 0x8a,
>         .agc2_pt2 = 0x0a,
> 
> //      .agc1_slope1 = 0x40,
>         .agc1_slope1 = 0x55,
> //      .agc1_slope2 = 0xff,
>         .agc1_slope2 = 0x1d,
> 
>         .agc2_pt1 = 0,
> //      .agc2_pt2 = 0x8a,
>         .agc2_pt2 = 0x0a,
> 
> //      .agc2_slope1 = 0x11,
>         .agc2_slope1 = 0x95,
> //      .agc2_slope2 = 0x14,
>         .agc2_slope2 = 0x1e,
> };
> 
> tzap with the new params:
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> reading channels from file '/root/.tzap/channels.conf'
> tuning to 850000000 Hz
> video pid 0x05dd, audio pid 0x05de
> status 03 | signal ac81 | snr 0000 | ber 001fffff | unc 00000000 |
> status 1f | signal ac5f | snr 0000 | ber 00060a60 | unc 000006ad | FE_HAS_LOCK
> status 1f | signal ac40 | snr 0000 | ber 000559a0 | unc 0000039c | FE_HAS_LOCK
> status 1f | signal ac85 | snr 0000 | ber 00034560 | unc 00000002 | FE_HAS_LOCK
> status 1f | signal ac75 | snr 0000 | ber 0003cfe0 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal ac7c | snr 0000 | ber 0002fd80 | unc 00000002 | FE_HAS_LOCK
> status 1f | signal ac6b | snr 0000 | ber 0002e2e0 | unc 00000001 | FE_HAS_LOCK
> status 1f | signal ac2f | snr 0000 | ber 00070350 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal ac50 | snr 0000 | ber 00073c60 | unc 0000000b | FE_HAS_LOCK
> status 1f | signal acad | snr 0000 | ber 00059720 | unc 00000006 | FE_HAS_LOCK
> status 1f | signal ac86 | snr 0000 | ber 00088240 | unc 00000016 | FE_HAS_LOCK
> status 1f | signal aca4 | snr 0000 | ber 000e1d00 | unc 000001b7 | FE_HAS_LOCK
> status 1f | signal ac97 | snr 0000 | ber 000e2140 | unc 00000b1e | FE_HAS_LOCK
> 
> tzap with the old params:
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> reading channels from file '/root/.tzap/channels.conf'
> tuning to 850000000 Hz
> video pid 0x05dd, audio pid 0x05de
> status 03 | signal 5398 | snr 0000 | ber 001fffff | unc 00000000 |
> status 1f | signal 54f0 | snr 0000 | ber 00000b90 | unc 00000208 | FE_HAS_LOCK
> status 1f | signal 5411 | snr 0000 | ber 000003a0 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 544b | snr 0000 | ber 000002c0 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 5535 | snr 0000 | ber 000004c0 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 55f0 | snr 0000 | ber 00000900 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 564a | snr 0000 | ber 000002b0 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 54fd | snr 0000 | ber 00000ca0 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 548f | snr 0000 | ber 000003d0 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 54a7 | snr 0000 | ber 000009f0 | unc 00000000 | FE_HAS_LOCK
> status 1f | signal 52f5 | snr 0000 | ber 00000820 | unc 00000000 | FE_HAS_LOCK
> 
> Thanks.
> Jose Alberto
> 
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