I second what Jim says; I've seen screen freezes and pixelation
(partial screen or image update) are what I've seen when the S/N
ratio reaches the point where FEC (forward error correction)
gives up and the result is seen by the 'viewer' as anomolies on
the screen.
Jim / WB5WPA
Quoting Jimk8mr@aol.com:
>
>
> RF interference picked up at the receiver front end will result in
> pixelation, freezes, or the blue screen of death. I don't have a good feel
> yet as to
> just how sensitive sets will be to RFI of this sort. The "good" news is
> that
> the interferee will probably not know what hit him.
>
> It is still possible that RFI will occur as audio rectification, as any
> stereo or other device is already prone to. The same measures, i.e. ferrites
> and
> the like, will still be the cure for this.
>
> 73 - Jim Stahl K8MR
>
>
>
>
> In a message dated 10/6/2008 7:05:03 A.M. Eastern Daylight Time,
> LRoeder@NESPOWER.COM writes:
>
> With the advent of DTV and the impending Feb. 2009 conversion deadline, I
> wonder what types of interference will lurk on the horizon. I realize that
>
> digital comms are a lot less prone to RFI, but I'm curious how strong
> interference will manifest itself in DTV.
>
> Any ideas, Mike?
>
> Landon D. Roeder, KC5ACP
> Engineer II, Test Section
> Nashville Electric Service
> Office: 615-747-3309
>
>
>
>
>
>
>
> **************New MapQuest Local shows what's happening at your destination.
>
> Dining, Movies, Events, News & more. Try it out!
> (http://local.mapquest.com/?ncid=emlcntnew00000001)
> _______________________________________________
> RFI mailing list
> RFI@contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
>
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|