Page 112 of 130
Copper Gate
Tests packet loss between boxes
Netinf test: sends packets between all HPNA devices in a network and looks for lost/corrupt packets
Netinf is a snapshot test and may not detect an existing fault
Netper test: Monitors traffic between HPNA devices and looks for lost/corrupt packets
Coppergate can confirm the existence of a fault but not necessarily its location
ID Test
The ID Test is used to identify specific runs during an installation.
1.
Place an RF remote on each run to be used
for install.
2.
At the Coax NIB, etc. connect Coax Clarifier™
to the first run to be ID'd.
3.
Press the
ID
button. The Coax Clarifier™ will
check the run for IDs and display the results at the top on the
screen.
4.
Repeat steps 2 and 3 for remaining runs
until all IDs are found.
Quality Test
The Quality Test will measure the return loss from 0 – 40 dB. Higher numbers are better.
1.
Place 75 ohm terminator on far end of run to be tested.
2.
Connect the Coax Clarifier™ to the other end and press the
Quality
Button.
3.
The return loss in dB will be displayed in the bottom right hand corner
of the screen.
4.
A low return loss number could indicate a splitter, damaged cable, bad
barrel connector, etc.
The Quality Test measures Return Loss in dB
Return loss is a measure of how much signal is lost in a cable.
The Coax Clarifier sends a signal down the coax run where it gets absorbed by the 75ohm terminator.
Ideally all of the signal is absorbed by the 75ohm terminator.
Faults, i.e. a splitter, will reflect some of the signal back to the Coax Clarifier™ where it’s measured in
dB.
Signal that’s reflected back is signal that won’t make it to an STB.
The lower the dB measured the worse the fault.
The Coax Clarifier™ can measure Return Loss from 0 - 40dB with 0dB being the worst and 40dB being
the best.
Return Loss Guidelines:
Generally, any runs that test below 40 dB should be inspected.
After inspection and repair, any runs that test between approx. 30dB and 35dB should be avoided,
while runs testing below 30 should be abandoned and replaced with Cat5, etc.
On a pixelization trouble, when all other factors have been ruled out, any suspect runs that cannot
be repaired should be replaced with Cat5, etc.
