testing Archives

NanoVNA testing Taps, Coax, passives and more part two

Mia Colabrese2021-08-15T16:11:56-04:00February 9th, 2021|

Another power hour of cable with Brady Volpe and John Downey CMTS Technical Leader at Cisco, show real world examples of testing Coax, Taps and other passives. The discussion is on all things DOCSIS. NanoVNA (Vector Network Analyzer) testing: General intro Test equipment RF basics Test One Diplex filter explained active equipment has a diplex filter It enables the plant to be upstream and downstream capable 75 Ohm world Cross over Cold solder joints, fingers touching surface mount components issues with diplex filters The higher the split

NanoVNA testing Taps, Coax, passives and more part one

Mia Colabrese2021-08-15T16:12:51-04:00January 27th, 2021|

Another power hour of cable with Brady Volpe and John Downey CMTS Technical Leader at Cisco, show real world examples of testing Coax, Taps and other passives. The discussion is on all things DOCSIS. NanoVNA (Vector Network Analyzer) testing: General intro Test equipment Test for bad cable, passives and amps Test return loss, insertion loss, etc Why is it important to terminate Question of event error log Loss connectors impact return loss nanoVNA and VNA explained MainLine Tap You can see the entire cable spectrum Return Loss