There are four 780 models equipped with the smaller touch screen:

• 780 handheld test instruments. The 780 handheld test instrument for HDMI® is a battery-powered, portable video and audio generator and HDMI analyzer that enables you to conduct quick, on-site verification testing and troubleshooting of your HDMI system and analog video displays. The 780 instrument is equipped with both a reference HDMI source and a reference HDMI sink interface allowing you to test audio, video and HDMI protocols—HDCP, EDID, CEC & infoframes—of any type of HDMI device: sources, repeaters and sinks. The 780 supports HDMI testing at pixel rates up to 165MHz and TMDS rates up to 225MHz for deep color on the output and pixel rates up to 150MHz on the HDMI input.
• 780A handheld test instrument. The 780A Video Generator / Analyzer is a battery-powered, portable video and audio generator and HDMI analyzer that enables you to conduct quick, on-site verification testing and troubleshooting of your HDMI system and analog video displays. The 780 instrument is equipped with both a reference HDMI source and a reference HDMI sink interface allowing you to test audio, video and HDMI protocols—HDCP, EDID, CEC & infoframes—of any type of HDMI device: sources, repeaters and sinks. The 780A supports testing at pixel rates up to 300 MHz for testing 4K Ultra HD HDMI 2.0 devices at 50/60Hz using 4:2:0 pixel encoding on sources and sinks
• 780B Video Generator / Analyzer. The 80B Video Generator / Analyzer is a battery-powered, portable video test instrument that enable you to conduct quick, on-site verification testing and troubleshooting of your HDMI system and analog video displays. The 780B supports all the features of the 780A including 300MHz on the HDMI Tx and Rx ports for testing of 4K Ultra HD HDMI 2.0 devices at 50/60Hz, but adds a larger screen (7 inches) for greater convenience in viewing analysis test results as well as a status bar on the bottom of the display for at-a-glance status on the HDMI Tx and Rx ports. The instrument supports testing of HDMI 2.0 devices including tests for 4:2:0 pixel encoding on sources and sinks, EDID emulation for testing HDMI 2.0 sources and distribution devices and tests HDMI 2.0 sinks with 21:9 formats.
• 780C Multi-Interface Interoperability Tester. The 780C Multi-Interface Interoperability Tester is a handheld digital video generator and analyzer that enables you to run tests on various digital video devices and network distribution devices on site or in the R&D lab. The 780C instrument provides a 7 inch color touch screen for operation and for viewing status of outgoing and incoming video and audio. The 780C is equipped with multiple interface types including HDMI, HDBaseT, 3G-SDI and component analog. The HDMI and HDBaseT Tx and Rx ports operate at 300MHz for testing of 4K Ultra HD HDMI 2.0 devices at 50/60Hz. Testing digital interfaces is supported by both an output port and an input port to allow testing of digital video sources, displays, audio devices and distribution devices. Testing hybrid converter devices supporting 3G-SDI, HDMI, HDBaseT distribution networks is a key application of the 780C as well.
• The 780D HDMI Protocol Analyzer / Generator. The 600MHz for UHD Testing is a handheld digital video generator and analyzer that enables you to run tests on various digital video devices and network distribution devices on site or in the R&D lab. The 780D instrument provides a 7 inch color touch screen for operation and for viewing status of outgoing and incoming video and audio. The 780D is equipped with multiple interface types including HDMI, HDBaseT, and component analog. The HDMI Tx and Rx ports operate up to 600MHz for testing of 4K Ultra HD HDMI 2.0 devices at 50/60Hz with 4:4:4 pixel encoding. The HDBaseT Tx and Rx ports operate at 300MHz for testing of 4K Ultra HD HDMI 2.0 devices at 50/60Hz with 4:2:0 pixel encoding. Testing digital interfaces is supported by both an output port and an input port to allow testing of digital video sources, displays, audio devices and distribution devices. Testing hybrid converter devices supporting HDMI, HDBaseT distribution networks is a key application of the 780D as well.