The best way to troubleshoot drop noise is to take a tap housing and drill access holes in the side, so you can short out each individual tap port against the housing with a screwdriver. Place a pin-to-F connector on the input of the tap housing, and terminate the output.
Now, when you get to a location you want to check, you hook your meter up to the Pin-to-F, and you take the faceplate out of the existing tap, and install it in the housing you drilled the holes in, which is now connected to your meter. By shorting out the tap port with a screwdriver, it kills any return noise on the drop. You check each drop until you find the one that lowers the noise floor. You can also just disconnect each drop 1 at a time, but my way you only move the entire faceplate from the existing tap to your troubleshooting device.
At a splitter/DC, you can use a Gilbert NS9178-1 to read noise/ingress off the seizure screw.
Re: Not Possible Testing At Tap "F" Port
Member #: 52199
Registered: 4/25/2007
Posted:
76
Name:
Rich
Company:
self-employed
Occupation:
sweep tech
Location:
wisconsin
There is 1 reply to this message
