The driver installation worked, but it cannot talk to the D2.
I'll go hunting for a good USB-serial (we have some at the office that I know works).
I did part of the config by hand (except for the names).
I have a HUGE amount of work ahead of me to make my Harmony 890 working properly with the D2 (mostly because the Harmony database contains about 10% of the commands required).
BTW, the D2 has the WORSE remote control ever devised. Mislabelling, "holding buttons 2 seconds" or "rapid double-click"..

Anyway, I could not really test much noise-wise as I wasted so much time trying to get the RS232 to work that the neigbors came back home.

Tonight I'll do testing for video scaling.

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