I can't answer your question the way you phrased it, but . . .
How would you like to be able to turn the
22khz tone on and off manually at your 905?
That would let you change from C-band to Ku-band LNBs.
If this item isn't quite right, you can Google "
22khz tone generator satellite" and find other choices.
But, a cheaper one I found, just
always injected the 22khz, so beware.