[LINK] FW: NextG Wireless Stays Up As NBN Fibre Broadband Crashes

[Tom Worthington]

Tom Koltai wrote Friday, 4 February 2011 12:37 PM

> The artifacts are possibly acoustic waves reaching the 
> ionosphere interfering with the uplink/downlink ...

No. The ABC TV picture showed a reporter in the foreground and trees out 
a window behind them. When the trees waved in the wind, the picture 
broke up. When the trees stopped waving, the picture was okay. The most 
plausible reason for this was that when the trees waved, the image 
compression algorithm had more data than it could cope with. The 
solution I suggested to the ABC was: don't point the camera at the window.

> However, I also believe that pixelation is a "special effect" 
> utilised by some mixers to produce the "affect" of "We are in 
> a Cyclone affected area and here is the pixelation to prove 
> it" mindset.  ...

No, this looked like the real thing to me. I doubt that any TV channel
would deliberately have the image of their reporter's face obscured.

> ... It could be that the ABC budget is VSAT uplink only... 

More likely the ABC was doing what it said they were
doing: using a broadband link for sending the report.


-- 
Tom Worthington FACS CP HLM, TomW Communications Pty Ltd. t: 0419496150
PO Box 13, Belconnen ACT 2617, Australia  http://www.tomw.net.au
Adjunct Senior Lecturer, School of Computer Science, The
Australian National University http://cs.anu.edu.au/courses/COMP7310/
Visiting Scientist, CSIRO ICT Centre: http://bit.ly/csiro_ict_canberra