No any working frequency/transponder with conceptronic ctvdigrcu

[Roalt <roalt.dvb-t@roalt.com>]

Hi all,

I'm new to DVB-T as I just bought a Conceptronic CTVDIGRCU v3.0 (usb
dvb-t device), so I hope I do not ask a stupid question, but I do not
get any results when executing:

./w_scan -ft -c NL

It returns (after a long list of frequency/time logging):

ERROR: Sorry - i couldn't get any working frequency/transponder
Nothing to scan!!

I first tried the stock dvb-v4l in Ubuntu Karmic 2.6.31-19-generic and
the w_scan from the repostory and after that the
one from

hg clone http://linuxtv.org/hg/v4l-dvb/

and w_scan from:

wget "http://wirbel.htpc-forum.de/w_scan/w_scan-20091230.tar.bz2

... but with the same result. My Windows 7 with media center does work 
with the antenna in exactly the same position.

I do get some errors in dmesg but I'm not sure if they harmful:

Feb 27 16:34:51 spock kernel: [  111.934075] tda18271: performing RF 
tracking filter calibration
Feb 27 16:34:53 spock kernel: [  113.733475] af9013: I2C read failed 
reg:d417
Feb 27 16:34:53 spock kernel: [  113.733496] tda18271: RF tracking 
filter calibration failed!
Feb 27 16:36:37 spock kernel: [  217.485162] tda18271: performing RF 
tracking filter calibration
Feb 27 16:36:40 spock kernel: [  220.636388] tda18271: RF tracking 
filter calibration complete
Feb 27 16:43:05 spock kernel: [  605.802390] af9013: I2C read failed 
reg:d417
Feb 27 16:43:05 spock kernel: [  605.802639] af9013: I2C write failed 
reg:d3c0 len:1

Can somebody help me or point me to the right direction?

Roalt


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