[mythtvnz] dual vertical / hroizontal satellite

[Noel & Di]

Nick Rout wrote:
> I guess to get sbs and not interfere with freeview I guess I need a
> dual lnb  - does that mean I need two cables from sat dish to the
> backend?
>
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Hi Nick
Sure does! Most LNB polarity is controlled by voltage, some by tone.  
The voltage controlled LNB will default to the highest voltage on the 
line - which is V polarity.  Tone polarity switching commutes the LNBs 
other active element, so same result - you end up with only the V 
polarity mux.  There is twinax - a dual coax which is the bees knees for 
this situation.
Noel.