[kwlug-disc] Home made indoor TV Antenna

[John Johnson]

On 2014-06-12 13:52, Khalid Baheyeldin wrote:
> For example, there is the excellent Daily Planet at noon, but that is 
> sometimes not watchable. Today it was good, but during other days it 
> can be pixellated.

On the old days a TV signal would suffer from 'snow' created by the 
falling signal to noise ratio.
The 'snow' would be caused, in real time, and would range from light 
flurries to an out-right blizzard or white-out.

The pixellated reception mentioned above is an artifact created by the 
same falling signal to noise ratio causing a 'real-time' signal drop out 
to be replaced with one or more of the following:
a freeze-frame, individual pixel freeze-frame and/or blending, pixel 
substitution, pixel interpolation, etc. None of this is 'real-time' as 
there has to be a measure of store-and-forward to allow the images to be 
'repaired' on the fly where there is a signal loss or drop-out.

I could watch a severely snowy signal especially when there were no 
other options.

IMHO A heavily pixellated signal is unwatchable.

JohnJ