Mat

The immunity standard for television receivers is EN55020.  This standard
evaluates picture quality by subjective perception of degradation of a
standard colour bar test signal (unlike audio quality which is specified as
40dB S/N).

Not much help, I'm afraid.

Regards

Chris Colgan
Compliance Engineer
TAG McLaren Audio Ltd
The Summit, Latham Road
Huntingdon, Cambs, PE29 6ZU
*Tel: +44 (0)1480 415 627
*Fax: +44 (0)1480 52159
* Mailto:[email protected]
* http://www.tagmclarenaudio.com

> -----Original Message-----
> From: Aschenberg, Mat [SMTP:[email protected]]
> Sent: 15 January 2001 14:49
> To:   [email protected]
> Subject:      Television Susceptibility Standards
> 
> 
> Fellow engineers,
> Is any one aware of a television receiver susceptibility standard? 
> I need to know what the standard S/N ratio is for a television receiver,
> along with other interference factors that affect clear reception. 
> 
> You may have noticed that when some VCR's are turned on when you are
> watching TV, you can see floating white spots. These go away when you
> disconnect the VCR. I am trying to develop a test criteria for
> interference
> generated by a table top device, like a VCR to ensure that this
> interference
> wont happen. In a way, its like performing an OATS test at 1 foot. 
> 
> As always I appreciate you input. 
> 
> Sincerely, 
> Mat Aschenberg
> Mathew Aschenberg
> Agency Engineer
> EchoStar Technologies Corporation
> 90 Inverness Circle East
> Englewood, CO 80112
> 
> 
> 
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