Join Date: Nov 2000
Location: Orange County, CA, USA
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Let me clarify. The digital information that is transmitted over a HDMI link is transmitted as an analog waveform over differential pairs. Without encoding/decoding or changing the digital information in any way, I simply want to run the analog waveforms though coax instead of the differential pairs of a normal HDMI cable. This can be done using a type of transformer called a balun to go from differential to single ended on one side of the cable and then from singled ended to digital on the other side of the cable. I don't know how many differential pairs and other single ended signals exist in a HDMI cable and any requirements such as allowable transmission time skew between pairs so I don't know if the 8 coax cables I have are enough. Additionally I don't desire to wire this up myself if there exists a product somewhere that already does this.
This can't be a legal digital rights issue here. There is no demodulation, decoding, deencryption or anything going on here. There will be a HDMI connector at each end of this , only the wires inbetween the connectors will be changed from differential pairs to singled ended coax by using balun transformers.
There seems to be a confusion about digital versus analog. All of the signals in our "digital" equipment are analog waveforms that represent digital information based on their levels. The digital information over an HDMI cable is sent via analog waveforms. This is completely different than converting a digital format broadcast into an analog format such as component or VGA.