[vdr] Problems with DVB-card's 22kHz-Signal

[Jan Grell <jan@grell-netz.de>]

Hi,

this time, it's not a vdr's problem, but perhaps, someone has a
solution...

My both DVB cards can't tune the high band in horizontal polarization
(vertical high band tunes okay, so there is a 22kHz signal). I tested my
sat-equipment with my neighbour's receiver, everything worked fine. Then
I recently found a posting in last year's vdr-archive about a similar
problem with a weak 22kHz signal. But I found no satisfying solution for
it, except of buying another card and hope for a working one.

How could I check, if the 22kHz signal is okay? What are the tolerances?

Thanks in advance,
Jan