RE: https://graeber.social/@DGI/116500891053079405
When I worked in #BroadcastEngineering in late 1990s, I saw then high tech kit which could have been used for making better #TV programmes (especially live broadcasts) instead being deployed to reduce headcount at TV stations and merge their playout centres (which is how UK commercial broadcaster #ITV went from 16 regions to just one company)
It's not anyone's theory. It's how it worked years ago, and it's how it still works today. I'm reading this very message on a repurposed #PAL telly, in fact. If I switch it to the old analogue BBC1 channel, it shows the snow in black and white, because there's no proper PAL colourburst, and without large groupings of black lines.
@stylus @bytebro @grishka @codinginquarantine
#television #BroadcastEngineering
PAL stands for Phase Alternation Line, and it basically mucks around with the phase of the colour subcarrier to prevent drift. So random noise on an unused broadcast channel is as unlikely to be recognizable as a colour burst in #PAL as it is with #NTSC.
Amusingly, it didn't usually have entire blocks of blank lines, either. I suspect that the stock art that @codinginquarantine used here was not based upon broadcast noise, but upon video-tape noise, likely when watching in fast forward/rewind.
Noise re-modulated through a video tape player's RF analogue output had a different quality.
And of course the fake noise used in 21st century movies and telly programmes about the 20th century, dummied up by a computer, is usually wrong. It's one of those widespread telly errors, like the view through #binoculars having two circles centred far apart.
Tag, @bytebro. You're it.
Limited vs Full Range Video
HDMI, DisplayPort, and SDI — What Engineers Keep Getting Wrong If you’ve ever seen: Gray blacks Crushed shadow detail Blown highlights A “washed-out” LED wall A QC rejection for “illegal levels” There’s a very good chance you were dealing with a range mismatch. Limited vs Full range video is one of the most misunderstood topics in AV engineering. And the confusion only gets worse when you move between HDMI, DisplayPort, and SDI. Let’s fix that. First: What […]https://blog.strangerproduction.com/2026/02/16/limited-vs-full-range-video/
1976
A man working on vintage television testing instruments, including color test patterns and signal counters.
Tags: retro technology, analog electronics, broadcast engineering, late '70s
https://nocontext.loener.nl/fullpage/03-March1976-Page-017.png
#photography #illustration #madman #nocontext #sfw #retrotechnology #analogelectronics #broadcastengineering #late'70s
1976 A Snapshot of Technological Testing in Television Broadcasts
The image captures a moment from television testing, showcasing an array of vintage broadcast equipment with various dials and switches.
In the background, there's a monitor displaying multicolored test patterns typical for color calibration or signal analysis on TV screens.
https://nocontext.loener.nl/fullpage/03-March1976-Page-017.png
#photography #illustration #madman #nocontext #sfw #retrotechnology #vintageelectronics #broadcastengineering #troubleshooting #1970s
#NHS Estates gave security clearance for pictures of the #transmitter #infrastructure of #Ipswich #CommunityRadio to be published, you can now see what me and my friends hauled up to the top of the Maternity block and installed in the plantroom..
My H2X Comms Headset Adapter is now available to order on Tindie!
Have you ever wanted to use your own 3.5mm TRRS in-ear headset to listen or talk on Comms?
This adapter converts 3.5mm TRRS stereo+mic headset to mono 4-pin XLR comms connector, as used widely in broadcast, live events and theatre.
The circuitry and receptacle fits entirely within the high quality Neutrik XLR-4FXX connector, so there’s no hanging dongle to get caught on things.
It also has a purple boot and label ring so it won’t get mixed up with other XLR gear in the control room.
https://www.tindie.com/products/eidophor/h2x-comms-headset-adapter-xlr-4f-to-35mm/
Students in #Scotland have rebuilt a modern replica of the original #television set invented by #Scotsman John Logie #Baird - in time for October, when it will be 100 years after he first demonstrated it was possible to televise moving pictures.. #TV #BroadcastEngineering
https://news.stv.tv/west-central/scots-students-reconstruct-john-logie-bairds-original-television
Alex@rtnVFRmedia Suffolk UK
JdeBP
eric.howell
No Context Pictures
s0 Is Not A Sysadmin