It looks like the PDF that Demetrios Matsakis attached to his posting did not make it through to the list. We are debugging that right now. Meanwhile you can pick up a copy at any of these locations:

"Time and frequency from electrical power lines", Hardis, Fonville, Matsakis
https://tf.nist.gov/general/pdf/2895.pdf
https://www.nist.gov/publications/time-and-frequency-electrical-power-lines
https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=922663

I highly recommend it if you are interested in US 60 Hz mains phase (time) and frequency accuracy, as well as frequency stability.

/tvb


On 12/27/2021 6:46 PM, Demetrios Matsakis via time-nuts wrote:
This line in Thomas Erb’s email prompts me to point out that the power 
companies twice tried to eliminate the requirement to keep the Time accurate to 
UTC (2011 and more recently).  According to the FERC’s summary in 2020 they 
denied the most recent petition because two people wrote letters as private 
citizens.  I was one and Jonathan Hardis of NIST was the other. See 
https://elibrary.ferc.gov/eLibrary/idmws/file_list.asp?accession_num=20200204-3048

I’m not trying to brag - more like I’m worried they try this again in a few 
years, and perhaps no one will notice to speak out.  These things are announced 
by the FERC, and I was on a mailing list with a key-word search, although I let 
it lapse.  Maybe one of you might want to take it up.

Demetrios

P.S.  I am attaching a PTTI paper we wrote, along with Blair Fonville.  The 
paper itself just described the situation, and did not take a stand.  I don’t 
think the USNO monitors the situation any more.

On Dec 27, 2021, at 7:01 AM, Thomas D. Erb <[email protected]> wrote:


The power company (still does) keeps  line frequency accurate to a time 
standard.  Henry Warren got this standardized - I believe Tesla proposed it.

_______________________________________________
time-nuts mailing list -- [email protected] -- To unsubscribe send an 
email to [email protected]
To unsubscribe, go to and follow the instructions there.

Reply via email to