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Signal Monitor test and testing fiber based and hybrid HDMI cables
- Published , by Tom Devine
The Murideo Fresco Six A/Six G combo has a robust HDMI cable test built in (to see a "how to" step by step guide click here).
This cable test was specifically designed for copper based HDMI cables. Testing fiber based or fiber/copper (AOC) hybrid HDMI cables is a little more tricky. Luckily we have a process that will help you test these types of HDMI cables.
Pro tips:
Bottom pic is an example of a FAIL
This cable test was specifically designed for copper based HDMI cables. Testing fiber based or fiber/copper (AOC) hybrid HDMI cables is a little more tricky. Luckily we have a process that will help you test these types of HDMI cables.
- Power up the generator
- Set the output of the generator so that it is sending a 17.82Gbps signal (3840x2160/60fps/rec2020/8bit/HDR/4:4:4 chroma)
- Choose a stationary test pattern (for example a 16 step grayscale)
- Connect the HDMI cable in question to the generator and analyzer
- Power up the analyzer
- Press OK on the analyzer
- Use the left or right navigation buttons and locate the “Signal Monitor” page
- Press “OK” to start the test
- The “Total Number” is the amount of seconds that the test is running for
- The “Trigger Number” is the amount of errors that the test has found
- Run the test for at least 1 minute
- Ideally 0 would be the Trigger Number, but 1-5 would still indicate a good cable
- Run the test a second time
- If you still have little to 0 errors, the cable is safe to install
Pro tips:
- Treat HDMI cables gently. Especially fiber based and fiber/copper hybrid cables
- When using zipties/cable ties, do not pull the ziptie as tight as possible. Snug is enough
- Avoid running HDMI cables right next to power cables
- When making long HDMI runs (15+ ft) consider an AOC cable or an HDMI extender
- When running signal cables, ALWAYS run conduit. Having conduit in place makes replacing bad or old HDMI cables much easier
- If you are using a directional cable be sure that it is running in the right direction or the cable test WILL fail!
- ALWAYS test an HDMI cable BEFORE installation.
Bottom pic is an example of a FAIL















