Cable internet and DirecTv on same coax line... possible??

You can combine cable internet with DirecTV's Ku satellite signals (called sats A, B and C) but you can't comnine it with the signals from the new, Ku/Ka DISHES (AT9, AU9), because they shift some of those transponders down to 250 to 750 Mhz.

DirecTV is presently testing new technology, called SWM (formerly FTM) which allows the stacking of any eight receiver-tuned transponders with cable TV internet. The release date is not known, but the general feeling of those involved in the testing is that it should be available sometime this summer.

You won't be using or furnishing a stacker. What you want done can't be done until your system operator upgrades the headend and distribution syystem. Once they do, you will need electronicaly compatible receivers (H20, HR20, D12, R-XX). There are no plans to make available any interface modules for connecting incompatible receivers to this system.

Satellite signals and cable signals, including internet, are combined using an inexpensive coupler called a diplexer, which costs just a few dollars. One port of the diplexer passes all signals above 950 Mhz, whih is what the satellite signals are.

The other passes all the signals that are between 5 Mhz and 860 Mhz, which includes the cable TV programs, downstream internet, and upstream PPV requests and internet.