No we did not sweep line or run PIM tests. The outfit they used before I was called to check for in-band interference was supposed to do all that work. I offered my services and hope to get some work. Big difference looking for sub 200khz wide in-band signals in MAS and STL world compared​ to 20 to 80MHz common to WISP world. Some HD STL links use 512Kbps....My old RS scanner helped distinguishing between STL and MAS ....Found 949.500 and 949.875 STL feeds not on their FCC list...Two Christian radio stations. Amen
On Apr 12, 2017 11:16 PM, "Lewis Bergman" <[email protected]> wrote: > Are you sure he is an rf guy? He doesn't seem like one. Did you sweep > the line to prove it was bad orreplace it and measure the difference? Just > wondering, not doubting because it doesn't "look" bad. > > On Wed, Apr 12, 2017, 10:35 PM Jaime Solorza <[email protected]> > wrote: > >> Got hired to help station RF guy with suspected >> interference....950.00MHz 7.1 mile link using Scala PR-18 reflectors on >> each end.... Signal should be in the -50s but they were getting >> -90dBm...Check alignment...Good, checked cabling and connectors on TX side >> on ground level, good.... Drove up to Lower Comanche site on >> mountain....Found a splitter with a pigtail not connected to anything..2nd >> picture, and old bad cable 3rd picture....Will replace cable and antenna >> this week. >> >
