ARLA/CLUSTER: ZXSpectrum viola as regras actuais de EMC

[Pedro Ribeiro]

    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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