The current wisdom is that it can be done - with extreme care. You are better off running the second, and for that matter, third, cables.
That being said, it appears that the ONLY acceptable order of devices is:
Note that the location of the power inserter becomes problematic. You are much better off if you can power the DPP44 from a different feed cable.
That being said, it appears that the ONLY acceptable order of devices is:
Code:
DPP44 --- Power inserter --- diplexer ---//--- diplexer --- Separator === 921
OTA Antenna -----------' '------------------------'
Note that the location of the power inserter becomes problematic. You are much better off if you can power the DPP44 from a different feed cable.