#transmitters — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #transmitters, aggregated by home.social.
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1985: me and my friend from highschool experimenting with 2 transistor home built FM #transmitters, later #Stentor kit from the #Netherlands, transmitting between 105,6/105,7/105,8 MHz (depending on how much TX had drifted) and putting 1km "not spot" into comms for British Rail and Reading Buses on their then new Stornophone #VHF radio schemes (which bizarrely had mobile TX on 150+MHz and base on 105-106 MHz (this portion of the band wasn't officially allocated to broadcasting back then!)
2025: working with my friends at #IpswichCommunityRadio doing it all legally on 105.7 - 50W TX power, stereo, digital soundprocessing, dynamic RDS, about 30-40km range, full telemetry on the transmitter and bandpass filter so we don't upset anyone else on the band.
Listening to Em's 80s Hour of Fun last night (she featured 1985 on the episode) reminded me of this (and that 40 years have passed since I started being involved with #radio!)
(en eindelijk na 40 jaar kan ik ook de andere kant van de bouwfolder (die was in het Nederlands geschreven) voor de Stentor lezen!)
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Earth's Oceans Are Filled With What Scientists Are Calling ‘Dark Vessels’ | Satellite Mapping Reveals Extensive Industrial Activity At Sea
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https://www.earth.com/news/dark-vessels-most-industrial-fishing-activity-is-not-publicly-tracked/ <-- shared technical article
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https://doi.org/10.1038/s41586-023-06825-8 <-- shared paper
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https://dialogo-americas.com/articles/chinas-rampant-illegal-fishing-is-endangering-the-environment-and-the-global-economy/ <-- shared opinion piece
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#GIS #spatial #mapping #remotesensing #satellite #illegalfishing #tracking #AI #statesponsored #deeplearning #darkvessels #GPS #transmitters #AIS #turnedoff #maritime #marine #vessels #foodsecurity #sustainability #global #globalsecurity #transponders #smuggling #illegal #commercialfishing #transport #energy #oil #gas #shipping #resources #Sentential #Sentential1 #spatialanalysis #spatiotemporal #realtime #model #modeling #neuralnetwork #accuracy #radar #SAR #cargoship #infrastructure #ocean #worldwide #humanrights #MPAs #coast #coastal #EEZs #tankers #industrial #sea #windfarms -
THE AUTHORITY’S STATIONS IN 1962
Our final trip back to 1962 to see what's going on with the ITA's :ita: #transmitters takes us to north and west #Wales, soon to be the home of #TeleduCymru :wwn:
https://transdiffusion.org/2023/08/03/the-authoritys-stations-west-and-north-wales/
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More outbreaks of #infectious #diseases in the future?
As a result of climate change, #transmitters of #dengue like the mosquito, Aedes albopictus, are projected to increase! Giving higher risk of #outbreaks.
More? Read EEA’s report ➡️https://www.eea.europa.eu/highlights/heatwaves-spread-of-infectious-diseases
🐦🔗: https://nitter.eu/EUEnvironment/status/1590358274754609154
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These ART400 #pager #transmitters (made in England and very good pieces of kit) always require the program enable pin to be grounded on the programming cable (here I'm using a jumper wire and an old PC motherboard connector on the red/black twisted cable) even to just read the config from the EEPROM!
If you /don't/ connect it, the config program returns a comms error and its easy to wrongly suspect the #RS232 to be acting up (you can see I even reinstalled the usb adapter drivers there!)
