Pulse-Eight neo 4*4 Video Matrix Product User Manual page 25

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HDBASET LINK QUALITY TEST
The HDBaseT Link Quality Test will check to see the HDBaseT link is stable over a sustained period of time. There
are two drop down menus, the first is the output you are testing the second is the type of test you are doing.
The Mean Square Error test is the ratio (in dB) of the signal power of the 'Good' signal to that of the 'Bad' signal and is
analogue. This is analogue and is directly affected by kinks, termination & other cable issues. Each Channel has a col-
our that represents the same colour in the twisted pair in the Cat cable. All four of these Channels should be within
3dB's of each other, for example, -21dB. -20dB. -21dB & -19dB. Otherwise, the cable quality will be marked as "Poor".
All four of these Channels should also be below the -15dB line. Otherwise, the cable quality will be marked as "Poor".
If a Channel is spiking to 0 or towards -40dB or the other above criteria are broken but then they recover to normal this
can still indicate an issue and we will remember this and mark the cable as "Poor". This can explain if your cables meet
the above criteria but are still marked as "Poor" due to this spiking only happening after a few hours for a few seconds
for example.
The Channel Errors test is a measurement of the number of errors on the channel, for example, packet loss and bit
errors. This is digital and is directly affected by the same issues mentioned in the "Mean Square Error" test. As you can
see in the Key each Channel has a colour that represents the same colour in the twisted pair in the Cat cable. All four of
these Channels should be within 3 of each other, for example, 35. 36. 35. 34. Otherwise, the cable quality will be
marked as "Poor". All four of these Channels should also be below the 40-line. Otherwise, the cable quality will be
marked as "Poor".
If a Channel is spiking to 0 or towards 60 or the other above criteria are broken but then they recover to normal this can
still indicate an issue and we will remember this and mark the cable as "Poor". This can explain if your cables meet the
above criteria but are still marked as "Poor" due to this spiking only happening after a few hours for a few seconds for
example.
Another way to check the link quality remotely is by logging into your installer account at monitoring.pulse-eight.com