Заметка: частоты широко распространеных средств связи каналов управления БПЛА: RC433: 433 МГц; сети 4G: 725-770, 790-830, 850-894 МГц; сети CDMA: 850- 894 МГц: RC868: 868-916 МГц; GSM900: 890-915, 935-960 МГц; GSM1800: 1710-1880 МГц; сети 3G: 2110-2170 МГц; сети Wi-Fi на базовой частоте 2,4 ГГц: 2,4-2,5 ГГц; сети 4G: 2,5-2,7 ГГц; сети Wi-Fi на базовой частоте 5,2 ГГц: 4,9-5,5 ГГц; сети Wi-Fi на базовой частоте 5,8 ГГц: 5,5-6,1 ГГц
Заметка: частоты широко распространеных средств связи каналов управления БПЛА: RC433: 433 МГц; сети 4G: 725-770, 790-830, 850-894 МГц; сети CDMA: 850- 894 МГц: RC868: 868-916 МГц; GSM900: 890-915, 935-960 МГц; GSM1800: 1710-1880 МГц; сети 3G: 2110-2170 МГц; сети Wi-Fi на базовой частоте 2,4 ГГц: 2,4-2,5 ГГц; сети 4G: 2,5-2,7 ГГц; сети Wi-Fi на базовой частоте 5,2 ГГц: 4,9-5,5 ГГц; сети Wi-Fi на базовой частоте 5,8 ГГц: 5,5-6,1 ГГц
For tech stocks, “the main thing is yields,” Essaye said. The next bit isn’t clear, but Durov reportedly claimed that his resignation, dated March 21st, was an April Fools’ prank. TechCrunch implies that it was a matter of principle, but it’s hard to be clear on the wheres, whos and whys. Similarly, on April 17th, the Moscow Times quoted Durov as saying that he quit the company after being pressured to reveal account details about Ukrainians protesting the then-president Viktor Yanukovych. At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion. Telegram was founded in 2013 by two Russian brothers, Nikolai and Pavel Durov. Update March 8, 2022: EFF has clarified that Channels and Groups are not fully encrypted, end-to-end, updated our post to link to Telegram’s FAQ for Cloud and Secret chats, updated to clarify that auto-delete is available for group and channel admins, and added some additional links.
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