Interesting, but leaves me with several questions.
The point about not being able to test over the USA because of FAA requirements raises the same issue for Europe and the issue of NAVAID interference, nets not being able to overlap etc, so how will this work in peacetime conditions? (I will make a wild guess and presume Australia was the 5 Eyes participant)
Secondly the is the distances involved. Notwithstanding JREAP, this seems to be describing using nets, within which packets are lifted to time-out for the reasons above, does this mean a further change to the protocol?
Third is spectrum, is this using frequency hopping, if so, what range and has this been agreed internationally? Systems such as Starlink are using laser interlinks both because of this issue , security and bandwidth.
https://www.c4isrnet.com/battlefield...-connectivity/
Space Development Agency demonstrates Link 16 satellite connectivity
WASHINGTON — The Space Development Agency demonstrated the ability to connect its satellites to radios on the ground through… Link 16, showing the potential for in-orbit sensors to network with military systems operating in multiple domains.
The agency conducted demonstrations from Nov. 21 to 27, transmitting signals from its satellites in Low Earth orbit — about 1,200 miles above Earth — to a test site on the ground, SDA said in a Nov. 28 statement.
According to SDA Director Derek Tournear, the demonstrations are a significant milestone for the agency, which is developing a space-based Transport Layer made up of small satellites and sensors designed to provide global connectivity for military users.…
During the demonstration, SDA used three satellites from its Transport Layer,
all built by Denver-based York Space Systems. The Air Force’s 46th Test Squadron at Eglin Air Force Base, Fla., supported the mission from the ground.
The satellites used on-board radios to send signals to a test site located “within the territory of a Five Eyes nation,” SDA said, declining to disclose which country it partnered with for the effort. Besides the U.S., other members of the Five Eyes intelligence alliance include Australia, the U.K., Canada and New Zealand.
SDA’s goal had been to conduct the demonstration over U.S. air space. However, the Federal Aviation Administration requires certification to use Link 16 to broadcast signals from space through the U.S. National Airspace System, and has not yet granted approval for SDA’s systems. So, the agency opted to perform the test over international waters.…