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- Newsgroups: sci.electronics
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- From: srfergu@rufus.erenj.com (Scott Ferguson)
- Subject: Re: RF leakage from TV cable system
- Message-ID: <1992Nov9.143426.28306@erenj.com>
- Sender: news@erenj.com (USENET News System)
- Nntp-Posting-Host: rufus.erenj.com
- Organization: Exxon Research & Engineering Co.
- References: <1992Nov7.213033.163@gems.vcu.edu> <1992Nov9.034219.29018@athena.cs.uga.edu>
- Date: Mon, 9 Nov 1992 14:34:26 GMT
- Lines: 31
-
- In article <1992Nov9.034219.29018@athena.cs.uga.edu>, mcovingt@aisun3.ai.uga.edu (Michael Covington) writes:
- |>
- |> It causes interference to other radio services. Remember that "cable
- |> channels," unlike real TV channels, are not allocated for TV usage outside
- |> the cable. For example, 155 MHz is in the middle of a cable TV channel,
- |> but is allocated to police radios. So if the cable signal escapes from
- |> the cable, the police can't hear each other. Similar things happen to
- |> aviation radios, hams, etc., depending on the frequency.
-
- |> Also, any cable leak that lets a signal leak _out_ will also let signals
- |> leak _in_, so that someone viewing TV suddenly hears the police or the
- |> fire department on top of his TV program...
- |>
-
- I live next to a Hospital, and am frequently getting interference (I think
- from the hospital- ambulances, etc) on Cable channel 21. The best part
- is, Channel 21 is the weather channel, and the interference only comes at
- the time when my local forecast is telling me something useful. As soon
- as the transmission stops, I can see which cold front from Manitoba is
- going through North Dakota.
-
- Could leakage in my own house be letting that interference in? If not, I
- guess I oughta call the cable company and demand they fix it somewhere, but
- then I'd cause a lot of people with splitters, descramblers, etc to get caught,
- huh?
- --
- ----------------------------------------------------------------------
- Scott Ferguson Exxon Research & Engineering Co.
- Project Engineer New Jersey
- ----------------------------------------------------------------------
- "Always bark at a dog."
-