[linux-dvb] Re: AverTV DVB-T un-viewable QAM_64 channels (QAM_16work perfectly) ...massive noise

[Simon Kilvington <s.kilvington@eris.qinetiq.com>]

I've got a Hauppauge WinTV Nova-T PCI Digital TV Card - the one that
says FreeView on the box - and that came with a remote - plus you
don't need LIRC, you just need to "modprobe hid" and it automatically
sends events from /dev/input/event0 to the keyboard buffer.

Here's the key map I'm using for the budget-ci.c driver:

/*
 * key map for remote that comes with Hauppauge WinTV Nova-T PCI 
Digital TV Card
 * generate keys for MythTV rather than KEY_REWIND, KEY_PLAY, etc
 */
static  u16 key_map[64] = {
        /* 0x0X */
        KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, KEY_8, 
KEY_9,
        0,
        KEY_RED,                        /* red */
        KEY_I,                          /* unlabeled */
        KEY_M,                          /* menu */
        0,
        KEY_F9,                         /* mute */
        /* 0x1X */
        KEY_RIGHT,                      /* right/vol+ */
        KEY_LEFT,                       /* left/vol- */
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        KEY_PAGEDOWN,                   /* skip */
        KEY_ESC,                        /* back/exit */
        /* 0x2X */
        KEY_UP,                         /* up/ch+ */
        KEY_DOWN,                       /* down/ch- */
        0, 0,
        KEY_PAGEUP,                     /* replay */
        KEY_ENTER,                      /* ok */
        0, 0, 0,
        KEY_BLUE,                       /* blue */
        0, 0, 0, 0,
        KEY_GREEN,                      /* green */
        0,
        /* 0x3X */
        KEY_P,                          /* pause */
        0,
        KEY_COMMA,                      /* rewind */
        0,
        KEY_DOT,                        /* fforward */
        KEY_SPACE,                      /* play */
        KEY_P,                          /* stop */
        KEY_R,                          /* record */
        0, 0, 0,
        KEY_O,                          /* go */
        KEY_W,                          /* full */
        KEY_POWER,                      /* power */
        KEY_YELLOW,                     /* yellow */
        0,
};


Rick Hamnett wrote:
> Hi thanks for your input
>
> The thing is the channels even QAM_64 work ok on windows, plus my 
> flatmate has a proper digital freeview tvbox and he gets perfect 
> reception too, tried it on my aerial socket too
>
> If i bought a cheap happuage nova-t pci card ..... i think it doesnt 
> come with a remote....but i want a remote....what can i do?
>
> Thanks
> Rick
>
> Ed Wildgoose wrote:
>
> > Hi Rick
> >
> > > The scan made the output
> > > ITV 
> > > News:834166670:INVERSION_OFF:BANDWIDTH_8_MHZ:FEC_2_3:FEC_1_2:QAM_64:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:2850:2851:8588 
> > Yep, looks reasonable
> >
> >
> > > Ive also tried to # tzap "ITV News" and i get lock as follows
> > >
> > > gentoo dvbtune-0.5 # tzap "ITV News"
> > > using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> > > tuning to 834166670 Hz
> > > status 01 | signal ffff | snr 8198 | ber ffffffff | unc ffffffff |
> > > status 1f | signal ffff | snr 84e8 | ber 0003ffe9 | unc ffffffff | 
> > > FE_HAS_LOCK
> > > status 1f | signal ffff | snr 7657 | ber 00000362 | unc ffffffff | 
> > > FE_HAS_LOCK
> > > status 1f | signal ffff | snr 8ca8 | ber 00000e4a | unc 00000000 | 
> > > FE_HAS_LOCK
> > > status 1f | signal ffff | snr 6226 | ber 0000057c | unc 00000040 | 
> > > FE_HAS_LOCK
> > > status 1f | signal ffff | snr 6f46 | ber 0000082d | unc 00000000 | 
> > > FE_HAS_LOCK
> > > status 1f | signal ffff | snr 6b56 | ber 000014bf | unc 00000000 | 
> > > FE_HAS_LOCK
> > > status 1f | signal ffff | snr 6156 | ber 000002ff | unc 00000000 | 
> > > FE_HAS_LOCK
> > > status 1f | signal ffff | snr 8aa8 | ber 0000129d | unc ffffffff | 
> > > FE_HAS_LOCK
> > > status 1f | signal ffff | snr 89e8 | ber 00000399 | unc 00000000 | 
> > > FE_HAS_LOCK
> >
> >
> >
> > Oops, those numbers look pretty bad...  lots of uncorrectable errors 
> > (unc), and the ber seems high (but I think it depends on the driver).
> >
> > Have you got a normal digi box to compare quality with?  Perhaps the 
> > signal is just weak in your area?
> > Suggest that there is a lot to be said for shopping around for a cheap 
> > Nova-T, and keep this for a backup/second card... Perhaps the drivers 
> > will sort themselves out in time...  I have a full featured £250 TT 
> > card that I thought was going to be great, and ended up with a Nova 
> > because it was FAR less hassle.  It is working ok as a second card now 
> > though...
> >
> > Good luck, sorry no more ideas...
--
Simon Kilvington, s.kilvington@eris.qinetiq.com





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