Network Switches


david_ten
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No, not new at all. 3 blade or 3x speed shutters were used with 16fps film early 20’s (or earlier). When the switch was made to 24fps, they dropped to 2 blades or 2x shutters, which was late 1920s.


I can’t remember when 3x shutters with 24fps became common, I want to say late 70’s, early 80’s, but even today, you would find 2x shutter regularly if the theater has not gone digital.



Greetings


I have followed this thread with interest


I will state up front that although I do realise the function and capabilities of each network element, I am no expert so I am neither agreeing nor disagreeing with any previous post.


I am in the UK and I listen to the excellent BBC Radio 3 (mostly classical music) on their 'Sounds' application or one of my DAB receivers (that is Digital Audio Broadcasting for our friend in America who do not have it !) 192 kbps on DAB and terrestrial with 320 kbps HLS AAC online


I have been lucky enough to be shown round a digital television and radio transmission station. You have never seen such a jumbled mass of cables. Power, Ethernet, the odd USB etc. with feeds from around 200 stations.


Around twelve million people depend on it to provide them with perfectly reproduced music and television. As most using this forum are undoubtedly aware, with DAB radio and digital TV it is either exact, garbage or non-existent, picture and sound quality degradation not being possible.


I have an open mind on the subject, but I am wondering why commercial and professional applications such as television and radio networks don’t need the same level of equipment as is being promoted for home cinema/music room applications.


All I know is that I enjoy the consistent high quality of digital and do not miss the hit and miss (and s*it and hiss!) of analogue.


Thanks


@david_uk_22   

I have an open mind on the subject, but I am wondering why commercial and professional applications such as television and radio networks don’t need the same level of equipment as is being promoted for home cinema/music room applications.


That's like asking why drive a Ferrari when a Kia serves the same basic purpose of delivering you from point A to point B. It's about eeking out extra performance...and not just making a successful transmission of data.  I feel that any piece of gear powered by electricity, including digital gear, can benefit from reducing the effects of RF/EM noise.
Thanks for your reply three_easy_payments


But I don't think that your Ferrari/Kia comparison works.

If the sole purpose is to get from a to b and the Kia will do that, then the Ferrari is not needed

Is not the sole purpose of the equipment in question, in both the professional and amateur setups, to get the radio/TV show from a to b ?