If you need to run a video signal hundreds of feet, there are two solutions:
- HDBaseT lets you run HDMI distances of up to 100 meters (about 328 feet) over a low cost CAT5e/CAT6 wire. While the support is built into the projectors, you will need the optional transmitter to implement it. The cost savings of using HDBaseT can be significant which make it a very compelling feature for many installations.
- 3G-SDI is another great long-distance solution especially for live video. This feature allows the projector to interface directly with a video camera (up to 1080p / WUXGA) located 100 meters away via coax. This is a big feature with big benefits for rental and staging customers, such as Houses of Worship (which are major users of live video and projectors), convention centers, university classrooms, corporate auditoriums and training rooms.
FYI, there are several additional SDI standards including HD-SDI which supports 720p/WXGA content and 6G-SDI which can support up to 4K resolution. Many users of large venue projectors are just fine with HD-SDI support.