I wonder if the Tonga volcano explosion had measurable effect on the Earth's
rotation, and what that means for UTC leap seconds (or not) from the IERRS.
Erik
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Got a mobile phone with a speaker?
There are "emulator" software apps which generate the appropriate time signals
(e.g. 60 KHz WWVB) as harmonics of sounds emitted through mobile phone speakers:
iPhone/iPad:
ihttps://apps.apple.com/us/app/clock-wave/id1073576068
Android:
There are software "emulators" for WWVB, JJY, MSF, DCF77 available for both
iPhones and Android phones that transmit very low power time signals through the mobile
phone speakers as a harmonic.
See
https://play.google.com/store/apps/details?id=jp.houryo.wwvbemulator=en_US
This apparently relevant paper is, alas, behind a paywall:
Investigation on human visual response latency
https://ieeexplore.ieee.org/document/5540888
DOI: 10.1109/ICCDA.2010.5540888
The magic (google-fu) word is "latency" just as in computer networking & time
The International Earth Rotation Service (IERS) has declared that there will be
NO leap second in December 2021:
https://datacenter.iers.org/data/latestVersion/16_BULLETIN_C16.txt
https://www.usno.navy.mil/USNO/earth-orientation/leap-second-announcement
Erik
I don't suppose there's any passive repeater solution for WWVB, e.g. antenna in
attic feeding coax to another, hopefully smaller antenna to reach radio clocks
with less-than-adequate built-in antennas in more unfortunately shielded parts
of a house? Similar to how Community Antenna Tele-Vision
