Gregory's Server#TIL Unlike ISO and IEC standards, most ITU standards are free to the public! All ITU-T Recommendations are published at https://www.itu.int/rec/T-REC/en You can find all the familiar names: V.92, X.25, X.509, or H.264 (800 pages) There are even epub files for some new documents. #electronics
niconiconi
6 comments
Jorin, Subcontra Sorceress
@niconiconi blessed!!
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25 Jun 2022 at 11:49 | Open on soc.punktrash.club
Andreas, DJ3EI, he/him
@niconiconi
niconiconi
@dj3ei The most famous ITU publication is probably the Radio Regulations (ITU RR), the legal basis of the use of radio spectrum worldwide, all serious ham radio operators should take a look. It's quite an interesting document.
Andreas, DJ3EI, he/him
@niconiconi It indeed makes an interesting read! Not so sure about its universal utility, though. Legal base is local. And the #hamradio service is special in it does not operate by any fixed written standard. It continuously adjusts its own procedures, informally. E.g., by the RR book, "CQ QRP" would mean "all stations, please lower your transmit power". In the #hamradio service, it has come to mean: "I am seeking a contact with any low-power station." Nothing wrong with that.
Andreas, DJ3EI, he/him
@niconiconi For what it is worth: At the German Hamradio fair, I have been in a presentation yesterday of the ENAMS project. It has distributed some 50 or 60 stations, most of them in Germany, that continuously measure radio background noise data. It wants to establish what the present state is, compared to the data published as recommendation ITU-R P.372-12 (07/2015) "Radio noise". I understand the latter is mostly based on measurements some 50 years old.
PulkoMandy
@niconiconi other places where you can find free standards: |