[time-nuts] HP 58503A

Christoph Kopetzky dekagoon at gmail.com
Wed Aug 1 21:40:40 UTC 2012

Hi all,

I have a question on my 58503A:

no problems aside, it is running for several years without
any problems.
But now I am cleaning my devices and I am reading the label
"ESEC" again on the back.
So the question comes up again, what is ESEC?
Google knows nothing about the signal or protocol...

I am now curious again and finally want to know what is ESEC?

Hope someone can illuminate me with this question.

Best regards and thanks in advance ;-)


More information about the Time-nuts_lists.febo.com mailing list