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#uav

4 posts4 participants0 posts today
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#eft #eftnozzle #CentrifugalNozzle #EFT CN500 #droneparts #dronespraying #sprayers #New #Agricultural #drone #farmingtools #UAV

Doug Bostrom

Nifty.

"This work first introduces a UAV-aided wireless communication system based on elevated ducts, offering solutions for flexible accessibility, wide-area coverage, and extensive spectrum resources for maritime applications....elevated ducts frequently occur over the northern Pacific Ocean, with a probability of occurrence as high as 94.07%."

It however reeks of military applications.

#AtmosphericDucting
#RadioPropagation
#UAV

nature.com/articles/s41598-025

NatureUAV-aided maritime communication over the Pacific Ocean using the elevated duct toward future wireless networks - Scientific ReportsTo bolster long-range maritime communication, unmanned aerial vehicle (UAV)-aid communications have garnered increased attention as traditional maritime communication solutions face challenges from geographical and meteorological factors. This work first introduces a UAV-aided wireless communication system based on elevated ducts, offering solutions for flexible accessibility, wide-area coverage, and extensive spectrum resources for maritime applications. Influenced by the tropical trade winds generated by semi-permanent atmospheric pressure systems, elevated ducts frequently occur over the northern Pacific Ocean, with a probability of occurrence as high as 94.07%. The study found: (1) the feasibility of realizing over-horizontal, GHz-bandwidth microwave transmission links within the elevated duct; (2) The path loss budget of 189 dB is marked with black isoline, implying that the receiver of the UAV-aided communication system in the ducting layer can receive and demodulate microwave signals with 1 GHz-bandwidth; (3) QPSK stands out for its relative compromise in bandwidth efficiency and hardware implementation difficulty for signals of six digital modulations. Compared to ground-to-air communication networks utilizing elevated ducts, UAV wireless communication systems can provide efficient support for maritime communications with minimal path loss and serve as a crucial component in 6G networks. The study represents a significant advancement in establishing a high-capacity data links platform capable of delivering high-speed, large-capacity, long-range wireless communications over the ocean without the need for relaying.
JanPV

Here's some Monday entertainment for you: Natural Resources Wales', doubtless retro-written 'policy' about what we can and can't do with drones in the UK.

Someone was clearly asked to look the 'drone laws' up online, who then went on to grab whatever supported their view that drone pilots are all wrong 'uns.

Please, please tear it apart in comments!

#drones#uav#aviation
Replied to Reed Mideke
Reed Mideke

More #Ukraine HUR long range FPV #UAV footage over Crimea. Notably, we see some other UAVs traveling the same direction around 0:26 and 0:45, which resemble a type described as a decoy in a CNN piece on the HUR drone program last year*. Unclear whether the ones in the video are the same type used for strikes, or are accompanying decoys

youtube.com/watch?v=EqRparC-mC4

* mastodon.social/@reedmideke/11

Still from the video at 26 sec, showing a black and white, probably thermal IR camera view of a dark, flying wing shaped blob over what looks like choppy water
ALT
Still from the video at 45s, showing another black and white view of a dark sky with some cloud, lookup up at a bright drone which has a somewhat similar shape to the other one, but slightly better resolved. It appears to be a flying wing with a boxy section at the back with two rudders
ALT
Six (plus a bit of seventh partly out of view) small, grey flying wing UAVs. They have two vertical stabilizers and are mostly a fat wing, with a two cylinder piston engine on the nose. Some have wooden propellers installed
ALT
Replied to Reed Mideke
Reed Mideke

In other #Ukraine #UAV news, Frontelligence Insight and RFE/RL did a massive analysis of the impact of Ukraine's long range strikes. tl;dr seems like the oil industry strikes are an incremental cost but not yet a significant logistical or economic disruption, though more significant impacts may be within reach frontelligence.substack.com/p/

Frontelligence Insight · Melting the Steel and Black Gold: A Comprehensive Analysis of Ukraine’s Long-Range Strike OperationsBy Frontelligence Insight
Sarah Dal

Drone Class Markings coming to the UK - the CAA have finally announced they'll introduce the drone class markings in 2026, probably in line with Europe. This relaxes and simplifies the rules on what size drone you can fly where #UAV

heliguy.com/blogs/posts/drone-

www.heliguy.comDrone Class Marking coming to UK in 2026Drone Class Marking to start in the UK in 2026 and the UK CAA to take the lead in monitoring and enforcing new product standards. Read the full story.
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