irrecord works, irsend doesn't

[Klaubert H. da S. <kla...@gm...>]

Hi,

I just receive my irblaster.com IR receiver and IR Blaster, and follow
 http://www.eggshellskull.com/lirc/blaster/index.php to make work
together with my wintv-prv 150 IR receiver.
The receiver works well with irrecord (only in raw mode), and after
this irw works to.

However IRBlaster doesn't work, although I can see it flashing (using
my digital camcorder), but my Sky box (RCA/Thomson DB200) don't accept
the signal.

Any Idea?

Klaubert