Matthias L?tzke says... > All cards sharing the same LNB send DiSEqC signals one after another. > If you switch the channel manually the primary card sends their DiSEqC > signal allways as the last card. Hi Matthias, so if I switch from S19.2E 99999 H 10600 t V W15 [E0 10 38 F3] W15 T to S13E 99999 V 10600 t v W15 [E0 10 38 F5] W15 B W15 T than the second DVB card will switch the tone off (while the first one is still sending the tone), the second DVB card will have low voltage (while the first one has still high voltage), than the second DVB card will send some DiSEqC sequences (disturbed by the tone of the first one) and will switch the tone on again. Than the first DVB card will send signals, again disturbed by the tone of the second DVB card. Would it be possible to change this and make sure no DVB card sends the tone as long as DiSEqC sequences are sent? Or have you already built in this and I just missunderstood your mail? Markus