18G 4K HDR Pocket Signal Generator, Analyzer and Cable Tester

Ideal Use Cases

The Kramer 861 is designed for generating, testing and verifying signal paths in HDMI systems operating at up to 4K@60Hz with 4:4:4 color sampling and HDCP 2.2. It is suited to bench testing, system setup, field verification and cable testing when an HDMI 18G signal must be examined with a compact tool. Combining signal generation, analysis and cable testing makes it useful across a 4K HDR ecosystem. Its portable format, included belt pouch and rechargeable Li-Ion battery support work away from a fixed bench, with more than five hours of operation before recharging is required.

Why Choose This Model

The 861 provides 23 built-in resolutions and 11 test patterns, allowing test signals to be selected for a broad range of system conditions. More than a dozen types of AV analysis functions extend its capabilities beyond pattern generation. HDMI data packets, EDID and HDCP can be analyzed, while EDID information can also be uploaded and emulated. This combination supports both observation and controlled testing from the same pocket-sized unit. For audio-path checks, the generator can produce up to eight channels of LPCM test tones using a wide range of frequencies and audio levels.

Installation and Integration

Integration centers on using the 861 within an HDMI 18G and HDCP 2.2 signal environment rather than permanently installing it. Its stated 18Gbps bandwidth and support for signals up to 4K@60Hz 4:4:4 allow it to address demanding HDMI paths. The source data lists high-speed HDMI cable options in premium, flexible, flat and plenum-rated forms, with available lengths varying by cable family. Listed lengths extend from 0.3 to 22.9 meters, or 1 to 75 feet. The portable design and battery operation make it practical to move the tester between points in a signal path during its stated operating period.

Performance Highlights

At its highest stated video format, the 861 handles up to 4K@60Hz with 4:4:4 sampling. Its HDMI 18G capability is specified as 6G per graphic channel, with an overall bandwidth specification of 18Gbps. HDR support includes HDR10 and Dolby Vision. The Status and Control Data Channel, or SCDC, can be monitored for HDMI 18G signal detection and analysis. HDMI data packet inspection provides another view into the signal, while EDID and HDCP analysis address display-identification and content-protection information. Audio testing complements the video functions through multichannel LPCM tone generation for as many as eight channels.

What Makes It Different

The defining feature of the 861 is the consolidation of three functions into one portable product: an HDMI signal generator, an AV analyzer and a cable tester. Its 23 resolutions and 11 patterns provide a substantial selection of generated test material, while EDID upload and emulation offer more than passive EDID analysis alone. SCDC monitoring specifically supports the detection and analysis of HDMI 18G signals. The availability of HDMI packet, HDCP and audio analysis-related functions reduces the need to approach each part of the signal path as a separate test category. The durable pocket format and high-quality belt pouch further distinguish it from equipment intended only for stationary use.

Final Assessment

The Kramer 861 brings together the core tools needed to examine an HDMI 18G signal path in a compact, battery-powered format. Its strongest capabilities are clearly defined: signals up to 4K@60Hz 4:4:4, 18Gbps bandwidth, HDR10 and Dolby Vision support, 23 built-in resolutions, 11 test patterns, and more than a dozen types of AV analysis functions. EDID upload and emulation, HDMI packet inspection, HDCP analysis, SCDC monitoring and eight-channel LPCM tone generation give it coverage across video, control data, content protection and audio. For work requiring portable HDMI generation, analysis and cable testing, the 861 offers a focused and technically broad toolset.