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John Curl's Blowtorch preamplifier part III
John Curl's Blowtorch preamplifier part III
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Old Today, 12:54 PM   #8581
anatech is offline anatech  Canada
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John Curl's Blowtorch preamplifier part III
Hi Ed,
Have a great time at AES!

"Just because you can, doesn't mean you should" my Wife
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Old Today, 02:45 PM   #8582
DF96 is offline DF96  England
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Originally Posted by scott wurcer
How does that work?
I can understand AES having lots of audio engineers and few RF engineers so knowledge of transmissions lines could be thin on the ground there. Not so for EBU: they should have shedloads of RF engineers.

Originally Posted by 1audio
In fact the original 1983 specification allowed up to a 2:1 mis-match of the line characteristics and this gave a
certain flexibility to "loop through" receivers, or use multiple links radiating from transmitters.
In the 1980s there was an obsession with 'multi-drop' cabling for all sorts of networking. I guess this coloured their thinking. Somewhere there would have been an engineer saying "that will never work" but his manager told him to keep quiet.

Last edited by DF96; Today at 02:45 PM. Reason: typo
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Old Today, 03:05 PM   #8583
Max Headroom is online now Max Headroom  Australia
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Originally Posted by simon7000 View Post
The thinking was at a 2:1 mismatch the reflection would drop below the digital threshold. Pretty sure Heaviside (sp) would have disagreed.
Jocko also.....IIRC he stipulated correct matching and particular cable lengths for spdif coaxial.

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Old Today, 04:08 PM   #8584
PMA is offline PMA  Europe
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Maybe not enough experimental experience at some AES members. Theoreticians tend to underestimate possible practical issues other than those they specialize at.
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