Bueno, he compilado el kernel-2.6.11-3 del repositorio de Debian con los drivers de dvb-kernel con ./makelinks.
Código:
vdr kernel: b2c2-flexcop: B2C2 FlexcopII/II(b)/III digital TV receiver chip loaded successfully
vdr kernel: flexcop-pci: will use the HW PID filter.
vdr kernel: flexcop-pci: card revision 2
vdr kernel: ACPI: PCI interrupt 0000:00:0d.0[A] -> GSI 6 (level, low) -> IRQ 6
vdr kernel: DVB: registering new adapter (FlexCop Digital TV device).
vdr kernel: b2c2-flexcop: MAC address = 00:d0:d7:0b:83:0d
vdr kernel: b2c2-flexcop: i2c master_xfer failed
vdr kernel: b2c2-flexcop: i2c master_xfer failed
vdr kernel: b2c2-flexcop: found the mt352 at i2c address: 0x0f
vdr kernel: DVB: registering frontend 1 (Zarlink MT352 DVB-T)...
vdr kernel: b2c2-flexcop: initialization of 'AirStar 2 DVB-T' at the 'PCI' bus controlled by a 'FlexCopIIb' complete
ahora cuando mido la señal de un canal, sin ejecutarse el VDR(1.3.23), la medida es buena:
[CODE]vdr:/usr/src/dvb/dvb-apps/util/szap# ./tzap -a 1 -c channels-conf/dvb-t/es-Madrid "TVE 1"
using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0'
reading channels from file 'channels-conf/dvb-t/es-Madrid'
tuning to 770000000 Hz
video pid 0x0065, audio pid 0x0067
status 00 | signal ff05 | snr 0000 | ber 00000000 | unc 00000000 |
status 1f | signal ff04 | snr c3c3 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal ffd7 | snr c3c3 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal ffd3 | snr c4c4 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal fff5 | snr c3c3 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal fff2 | snr c3c3 | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal ffe3 | snr c4c4 | ber 00000000 | unc 00000000 | FE_HAS_LOCK[/CODE]
y con VDR ejecutándose, medimos el canal y ya no es tan buena S/R y errores ....
[CODE]vdr:/usr/src/dvb/dvb-apps/util/szap# ./tzap -a 1 -c channels-conf/dvb-t/es-Madrid "TVE 1"
using '/dev/dvb/adapter1/frontend0' and '/dev/dvb/adapter1/demux0'
reading channels from file 'channels-conf/dvb-t/es-Madrid'
tuning to 770000000 Hz
video pid 0x0065, audio pid 0x0067
status 1f | signal fff5 | snr 7878 | ber 000115ff | unc 0000ff00 | FE_HAS_LOCK
status 1f | signal fff1 | snr 7878 | ber 000115ff | unc 00002900 | FE_HAS_LOCK
status 1f | signal fff7 | snr 7b7b | ber 0001ef52 | unc 00002e00 | FE_HAS_LOCK
status 1f | signal fff3 | snr 7878 | ber 0001ef52 | unc 00003100 | FE_HAS_LOCK
status 1f | signal fff0 | snr 7b7b | ber 0001ef52 | unc 00002f00 | FE_HAS_LOCK[/CODE]
¿Alguna idea?