FirstFiber OTDR FF-980PRO Video Demo
2019-08-13FF-980PRO OTDR Operation Demo
https://www.youtube.com/watch?v=DpVQCq4-Cxc&t=23s
FF-980PRO OTDR Video Demo
https://www.youtube.com/watch?v=iy7UynkHImk&t=4s
How to re-name an OTDR testing results(.sor) ?
https://www.youtube.com/watch?v=J4VSu6h4u5A&t=1s
Answer two questions on FirstFiber OTDR FF-980PRO
https://www.youtube.com/watch?v=kuHoPeCvc6U