Does the AV receiver extend hdmi signal? Cable length question

HDMI is a network. All devices “talk” to each other, negotiate and figure out the proper connection so they can communicate.

The cable(s) that carries that connection have to handle The proper band with and have the integrity to carry that connection. Up to 2m most cables should work if they’re reputable. Once you start getting 10, 15, 25 feet You should make sure to get a certified cable. Certified Cabel has gone through an independent testing process to ensure that it can pass the signal and bandwidth at the rated distance. This isn’t a specific endorsement but Monoprice as one vendor of value provides certified HDMI cables.

When you start going to longer distances I try and go with active cables and fiberoptic cables. In fact in my main theater I only use fiber optic cables for longer distances. The reason for that is twofold: first fiber optic cables are thin and certified cables at longer distances tend to be very thick and difficult to work with. Secondly fiber is your proven standard for long distance runs in network and Telecommunications and a V applicationSecondly fiber is your proven standard for long distance runs in network and Telecommunications and AV applications.

smania said:

Mmh maybe I got this all wrong... I've assumed that I had to connnect my htpc (which is on the same wall as the screen) to the receiver (same wall) and then all the way to the projector on the other wall.
But maybe I should install a DLNA service on the PC, get a streaming device (such as a Roku), connect it to the AV receiver (which could now go to the same wall as the projector) to avoid running HDMI cables from wall to wall?

Click to expand...

What do you want to push? HD (1080), 4k, or 4k HDR? Is your only source the PC? Are you a gamer? DLNA is a good option but it uses your WiFi which can have drawbacks with regards to distance, interference, etc. Your best bet, and most reliable connection is wired (HDMI).

Certification for passive, copper-only cables is good up to 25' for the HDMI 2.0 options. For the HDMI 2.1 options it is 16'. As mentioned, the cables will be thicker due to the certification requirements so there is a loss of flexibility, which can put undue strain on the HDMI ports depending on the installation. The longer the cable, the thicker the wiring. There are lots of cable mfrs who sell certified cables for HDMI 2.0. For HDMI 2.1, Zeskit and Ruipro offer ATC certified, copper-only cables.

Certification for active, hybrid fiber cables is finally available but is limited, so far, to only a few mfrs. Cable Matters, Maxonar, and soon Ruipro are the ones that immediately come to mind. Monoprice is a reseller. They do not mfr their own cables but they do have a large selection of vendors that they sell. With regards to HDMI certification, any cable mfr can submit their cables to an ATC for HDMI 2.0 or 2.1 certification. The cables will be labeled as either Premium High Speed HDMI for the HDMI 2.0 option sets or Ultra High Speed HDMI for the HDMI 2.1 option sets. Both will come with a QR label of authenticity on the packaging but it's always best to scan the QR label just to make sure. The counterfeiters are getting better and better everyday.

Certification is not a guarantee of 100% compatibility with any device and/or setup. It's always a good idea to use ATC certified cables whenever you can but that's not to say that non-HDMI certified cables won't work, because they can depending on the quality of the build, distance, installation, and what you want to push.