MS-TestPro USER GUIDE
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Reading the Performance Graphs... continued:
• At the point where any of the twisted pair lines cross the orange dotted line, the system
would be deemed un-stable and at it would be expected to see intermittent drop out of
video and audio. There is no error correction in HDBaseT Spec1.0 - any increases over
the orange dotted line could potentially be taken care of by the HDMI chipset within the
sink device, but not inside the HDBaseT equipment at this point.
• The error correction in HDBaseT2.0 chipsets can cope with small increases over the
orange dotted line, however, if the twisted pair line moves too far over the threshold, the
error correction may not be successful and video / audio will be dropped.
• The closer any twisted pair lines move above the orange dotted line towards the red
dotted line the higher risk of too many errors will be experienced.
• If any of the twisted pair lines reach or exceed the red dotted line it is expected at this
point that the HDBaseT link is likely to fail resulting in no video and audio being passed.
• Active Profiles are only to be used for specific manufacturers CATx cables where their
systems are designed to work within specific parameters of cabling performance.
Activating a cable Profile within the MS-TestPro adjusts the performance criteria of the
test which can have an adverse affect on the actual performance output of the tester.
In summary:
The HDBaseT Performance option within the MS-TestPro allows for a test to be carried out
over a longer period of time than the HDBaseT Certification, which only analyses the signal
over a 10 second period.
This test is a good graphical indication of the signal performance over the CATx cable which
can prove to be invaluable to integrators wanting to have ‘x-ray vision’ into a HDBaseT
signal being transported.
The results from these tests will highlight corrective actions that can be carried out on the
CATx cable infrastructure before leaving site. These actions may involve:
• Re-terminating RJ45 plugs, punch-downs, keystones or joins
• Replacing patch cables (if used) - please note, it is not recommended to use patch
cables with HDBaseT. Where patch cables are used, it is recommended to use a solid
core variant
• Removing patch panels or wall plate connectors
• Running a new CATx cable, or attaching to a new run of cable (if available)
• Reducing the resolution of the source device to take into account errors of higher-
bandwidth signals. The HDMI Pattern Generator of the MS-TestPro can be used to
qualify different resolutions in this instance - see HDMI Pattern Generator page
HDBaseT Performance Testing
