Thanks for the explanation, but this Monoblock Quad LNB supports Toneburst also.
But for now I just use DiSEqC :)

Specs Maximum AMBQ-24 monoblock:
* Frequenzbereich 10.7 - 12.75 GHz
* LOF 9,75 / 10,60 GHz
* Integrierter DiSEqC
* optimiert für 85 cm Offset-Antennen (F/D-Verhältnis 0.6)
* Rauschmaß ...

2 puch-maxi: Do you really like use 22khz? Becuase this type of diseq not compatible with universal LNB. I'm not sure since I own a "Maximum AMBQ-24 monoblock / cityCom Duo LNB". I used to use the 22khz option and it worked fine, but with the new version of ProgDVB it does not work anymore. So I ...

I think I found a bug,
I use an Azurewave SP400 DVB-S2 card together with a 2 port DiSEqC switch (Astra 19.2 & 23.5) and my operating system is Windows XP SP3.

Since version ProgDVB6.46.6Std upwards I experience difficulties using the 2-port DiSEqC option (22 Khz, switch 2 ports) I do not get a ...