ARLA/CLUSTER: ZXSpectrum viola as regras actuais de EMC

[Hugo Barata]

Eu de certeza que prefiro o possivel ruído que um ZX spectrum possa fazer
do que qualquer modem broad band power line.

O ZX spectrum foi muito usado durante anos e anos e desconheço se alguém se
queixou de ruídos em toda a banda.

Alguém terá por aí algum a funcionar?? Caso alguém tenha algum mas que
precise de um CPU ZILOG Z80 diga.

73 de Hugo Barata CT2HMX

On Thu, Dec 13, 2012 at 7:00 PM, Pedro Ribeiro <ct7abp  gmail.com> wrote:

>  Current Radio Rules Mean Sinclair ZX Spectrum Wouldn't Fly Today<http://hardware.slashdot.org/story/12/12/13/1513256/current-radio-rules-mean-sinclair-zx-spectrum-wouldnt-fly-today>
> *"Ben clearly has way too much spare time on his hands, but he decided to
> see just how well an antiquated ZX Spectrum would hold up to modern EMC
> requirements<http://www.theregister.co.uk/2012/12/13/sinclair_spectrum_fails_modern_radio_noise_tests/>.
> His blog is a good read if you're looking for something to do while
> pretending to work! From the blog: 'This year is the 30th anniversary of
> one of my favourite inventions of all time, the Sinclair ZX Spectrum. A few
> weeks ago, I finally bought one: a non-working one on eBay that I nursed
> back to health. Fortunately there was very little wrong with it.
> Unfortunately it's a 16K model, and a fairly early one at that, which won't
> run much software in its native state. This probably accounts for its
> unusually pristine condition. We took half an hour in the chamber to
> perform an approximate series of EN55022 measurements, to check its
> radiated emissions against today's standard. The question is, what have we
> learned as an industry since 1982?'"
> *
> fonte e artigo completo em:
>
> http://hardware.slashdot.org/story/12/12/13/1513256/current-radio-rules-mean-sinclair-zx-spectrum-wouldnt-fly-today
>
> http://www.theregister.co.uk/2012/12/13/sinclair_spectrum_fails_modern_radio_noise_tests/
>
> Fonte: The Register via Slashdot
>
> Comentário pessoal: O espectro abaixo de VHF é de tal forma desconsiderado
> actualmente que o autor dos testes só os realizou entre 30MHz e 1GHz,
> pessoalmente acho que a analise junto à frequência do relógio base e suas
> harmónicas continha certamente uns picos mais interessantes...
> Mas ...
> Será que bate um PLC dos "bons" ????
>
> 73!
>
> --
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> QRA: Pedro Ribeiro
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