Originally Posted by kb2fzq
Well, I am just quessing, but the radar now on 13.3 is definately the same radar screen they use during a broadcast weather section during the evening news....when the radar sweep needle is up, the needle on the screen originates from the antenna farm area in the Helderbergs, the old 13.3 radar originated from the Bald Mountain area, where the old 13 was located and 18.1 is today. I would guess a piggyback of NWS radar is what's on 13.3, but again, it's just a guess....maybe someone from WNYT will jump in here and explain it....
WNYT's radar is on Bald Mountain (http://en.wikipedia.org/wiki/File:Baldmountaintroy.jpg
). The problem is, as you can see those transmitters are right next to the radar. Those sectors are completely blocked from the radar's view. This means a wedge of MA and VT aren't covered by the WNYT radar sweep. Also, the radar is much less powerful than the National Weather Service's.
The NWS Radar is in East Berne, NY and this is the radar WNYT and even WRGB use the most. When you see the sweep, take a look at where its coming from, and whether the colors change along with the sweep. A true live sweep will rescan everything so nothing should stay the same on the radar screen, there should be slight movement of what is shown.
Every station uses software to show a sweep on the NWS radar now though, which only updates every 5-6 minutes at most. When a new radar image comes into the station from the NWS, the sweep will update the picture the viewer sees but this is not a true live image.
If it seems confusing, that's because it is. They probably do that on purpose.