Message 22659 in RASPI.WW
From: KC2NJV
Date: Wed, 20 May 26 00:00:00 Z
Newsgroups: RASPI.WW
Subject: RASPBERRY PI NEWS
Message-ID: <5459_KC2NJV>
Path: N2MH4|N3HYM|K1AJD|LU9DCE|KC2NJV
R:260520/2125Z 31414@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260520/0022Z 5077@N3HYM.#FRDK.MD.USA.NOAM BPQ6.0.25
R:260520/0006Z 8595@K1AJD.#AUG.GA.USA.NOAM LinBPQ6.0.25
R:260520/0005Z 13941@LU9DCE.TOR.BA.ARG.SOAM LinBPQ6.0.25
R:260520/0000Z 5459@KC2NJV.#NASS.NY.USA.NOAM LinBPQ6.0.25
____ _ ____ ____ ____ _____ ____ ______ __ ____ ___
| _ \ / \ / ___|| _ \| __ )| ____| _ \| _ \ \ / / | _ \_ _|
| |_) | / _ \ \___ \| |_) | _ \| _| | |_) | |_) \ V / | |_) | |
| _ < / ___ \ ___) | __/| |_) | |___| _ <| _ < | | | __/| |
|_| \_\/_/ \_\____/|_| |____/|_____|_| \_\_| \_\|_| |_| |___|
_ _ _______ ______
| \ | | ____\ \ / / ___|
| \| | _| \ \ /\ / /\___ \
| |\ | |___ \ V V / ___) |
|_| \_|_____| \_/\_/ |____/
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[01] Wi-Wi Is Wireless Time Sync at 1 nanosecond
At NAB, I found a demo of Wi-Wi STAMP, a wireless time synchronization
protocol that came out of Japan's NICT. Wi-Wi stands for Wireless 2Way
interferometry, and it uses the 900 MHz band for picosecond-level time
sync, and mm-level distance accuracy, in a tiny box, currently the size
of a smartphone. The system is still in development, but existing
prototypes have 20ps of phase synchronization jitter, and time
synchronization down to 30ns. The next generation will have time down
to 5ns in real-world use.
Link: https://www.jeffgeerling.com/blog/2026/wi-wi-is-wireless-time-
sync-less-than-5ns/
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Till next time...
Wayne, KC2NJV
Voice Net: Wednesday 0000 UTC. Info at USS Rising Star
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