As you have discovered, 100' is too long for a typical HDMI cable.
You can get an HDMI Pro/100 cable from Extron that is certified for 1080p standard HDMI. They recommend using the HD 4K 101 Plus equalizer with a cable that long, however. This solution is fairly expensive.
You can use a pro-level HDBaseT solution - Crestron DM, Extron DTP, or AMX DXLink. You would need a dealer for these, but there shouldn't be much, if any, programming. There are also lower-cost HDBaseT solutions that should provide adequate performance, like Kramer, Gefen, Hall Research, and Atlona. You can buy the lower-cost HDBaseT transmitters and receivers from Full Compass or B&H. A bonus is that HDBaseT can also extend RS-232, IR, and even IP control signals depending on the TX/RX pair you select.
You can get HDMI cables that use fiber optics and active technology. This may be your best bet if you only need HDMI and the cables are installed. My experience is that these work well but are not suitable for portable applications. FSR is one manufacturer: bhttps://www.bhphotovideo.com/c/product/1063192-REG/fsr_dr_pcb_h30m_hdmi_digital_ribbon.html
Finally, there are now a lot of video over IP solutions. SVSI (AMX), Just Add Power, Aurora, Atlona, Crestron, and ClearOne, among others, have various schemes, including minimal compression, JPEG2000 compression, and h.264 compression that all have varying bandwidth requirements and latency.
We have switched many of our designs to IP-based solutions. The nice thing is that you don't need a matrix switch, the systems scale seamlessly until you get to quantities rarely seen in performance spaces, and adding a new input and output involves simply dropping an end point at any network jack. The downsides are that programming is more complex, and you either need to have a dedicated AV network (and know how to configure a network) or become very good friends with your IT guy. The higher bandwith solutions also require much higher performance network switches, like the Cisco 3650 series.
You can get an HDMI Pro/100 cable from Extron that is certified for 1080p standard HDMI. They recommend using the HD 4K 101 Plus equalizer with a cable that long, however. This solution is fairly expensive.
You can use a pro-level HDBaseT solution - Crestron DM, Extron DTP, or AMX DXLink. You would need a dealer for these, but there shouldn't be much, if any, programming. There are also lower-cost HDBaseT solutions that should provide adequate performance, like Kramer, Gefen, Hall Research, and Atlona. You can buy the lower-cost HDBaseT transmitters and receivers from Full Compass or B&H. A bonus is that HDBaseT can also extend RS-232, IR, and even IP control signals depending on the TX/RX pair you select.
You can get HDMI cables that use fiber optics and active technology. This may be your best bet if you only need HDMI and the cables are installed. My experience is that these work well but are not suitable for portable applications. FSR is one manufacturer: bhttps://www.bhphotovideo.com/c/product/1063192-REG/fsr_dr_pcb_h30m_hdmi_digital_ribbon.html
Finally, there are now a lot of video over IP solutions. SVSI (AMX), Just Add Power, Aurora, Atlona, Crestron, and ClearOne, among others, have various schemes, including minimal compression, JPEG2000 compression, and h.264 compression that all have varying bandwidth requirements and latency.
We have switched many of our designs to IP-based solutions. The nice thing is that you don't need a matrix switch, the systems scale seamlessly until you get to quantities rarely seen in performance spaces, and adding a new input and output involves simply dropping an end point at any network jack. The downsides are that programming is more complex, and you either need to have a dedicated AV network (and know how to configure a network) or become very good friends with your IT guy. The higher bandwith solutions also require much higher performance network switches, like the Cisco 3650 series.
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