From: "Johannes Stezenbach" <js@xxxxxxxxxxx> > I only have the tda10046 data sheet at hand. Non-hierarchical > and alpha=1 are distinct register settings, and the HP/LP selector > is a seperate bit. IIRC the same is true for MT352. > > Do DibCom data sheets disagree? > > EN 300 744 says "Non-hierarchical transmission uses the same uniform > constellation as the case with = 1", but the mapping of the bits > in the deinterleaver is different. The hierarchial transmission on channel 51 in Berlin is using alpha=1... See the IRT whitepaper linked to at www.garv.de for some good technical background on hierarchial transmission and the meaning of the alpha value. Regards, -- Robert Schlabbach e-mail: robert_s@xxxxxxx Berlin, Germany _______________________________________________ linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
