(24-06-2019, 02:41 PM)colly0410 Wrote: The TV in our Orlando hotel was an old analog LCD, when I went into the menu it was working on NTSC & was set to cable channels, some channels were very bad quality with hum bars. I clicked over to OTA & had a manual search & found a snowy picture on channel 6 low band, think I read somewhere that some low power community analog stations are still running, wondering if it was one of those I was picking up?
Must have been a rubbish CATV system or, perhaps (and more likely) a poor hotel distribution system because there is no way that you should be able to receive an OTA channel without a TV aerial!
There are very strict rules about the screening of CATV networks and they are particularly heavily enforced in the US. Their main worry is interference with aircraft communications - remember that US CATV networks are carried on overhead cabling - and the FCC can and will take action against any offenders.
From https://wiki.radioreference.com/index.ph...terference
• Does the CATV operator have to fix every leak?
Per the FCC: “During regular monitoring, any leakage source which produces a field strength of 20 uV/m or greater at a distance of 3 meters in the aeronautical radio frequency bands shall be noted and such leakage sources shall be repaired within a reasonable period of time.”
If the CATV operator determines that the leak is caused by subscriber supplied equipment, they may ask you to replace it or have them replace it at your cost. This is usually at the discretion of the Service Person present and depends on what the piece is that is causing the leak. Be aware that TVs and other components themselves have been known to cause leaks on rare occasions.
If the CATV operator cannot access a residence where a leak has been determined to originate from, they may disconnect that residence from their network until the leak can be eliminated.
