That bandwidth is not needed as the lnb has 8 inbuilt tuners so only 8 channels (transponders?) streamed at a time.
The bandwidth I'm talking about is for the LO signal from a standard LNB, that can be from 900 MHz to 1.4 GHz depending on the transponder selected, this for a standard LNB.
For that SAT-IP antenna it looks like it only sends signals to WIFI enabled devices like HDTV's with WIFI services and mobile devices like an Ipad or Cell phone.
And with only 8 channels to view on one device it would get a bit boring.
What would be a better product would be one that was fully tunable over all available satellite transponders (on the selected satellite) and would run via WIFI at 5 GHz into a set top box or other WIFI enabled device, it would need full channel capability. Thus no LAN cable would be needed just power for the antenna.
My internet is supplied via a 5 GHz RF link to the ISP, the antenna has the modem built into it, a single LAN cable runs up to it, this supply's DC power and the ISP connection, I get 5 MBPS both ways.
A similar setup could be used for satellite service, use a full range receiver built into the antenna (like the one mentioned) then WIFI it down to the house, all you would need is power up to the antenna.