Re:Using HDMI radio interference for high-speed data transfer
by pjc50 on Tuesday February 28, 2023 @06:30AM
(#34968179)
> I'm assuming that based on the info shown the RF source must be the display electronics rather than HDMI line?
The author has taken a purely emprirical approach and not attempted to model the emissions or localize them to a particular point, so we don't know. You would expect differential signalling to be low loss, but perhaps the termination is bad or the shielding around the connector? Or it could even be being radiated from the power (VCC/GND) of one of the chips on either end.
The author has taken a purely emprirical approach and not attempted to model the emissions or localize them to a particular point, so we don't know. You would expect differential signalling to be low loss, but perhaps the termination is bad or the shielding around the connector? Or it could even be being radiated from the power (VCC/GND) of one of the chips on either end.