[SystemSafety] Data across the UK National Grid

[SPRIGGS, John J]

Actually 1500m, it used to be a frequency reference at 200kHz derived from an atomic clock, but they changed it to 198kHz - I do not know if it is still a frequency reference at this new frequency.

John
Showing my age by saying new - it was about thirty years ago...
From: systemsafety [mailto:systemsafety-bounces at lists.techfak.uni-bielefeld.de] On Behalf Of Martyn Thomas
Sent: 11 October 2016 10:00
To: systemsafety at lists.techfak.uni-bielefeld.de
Subject: Re: [SystemSafety] Data across the UK National Grid

I believe that the radio signal on LW (198m) is still used to control storage heaters in the UK. If this has ceased, I'd be interested to know when - and anything else the signal is/was used for (other than BBC Radio 4, of course).

Martyn



On 11/10/2016 09:41, Matthew Squair wrote:
Suggest wait till everyone relies on it as a communications network and then execute a DoS attack, for extra points make it an intermittent and random attack pattern.

Small historical note, I used to work for the Macquarie county council and back in the day (80s) we used to send signals down the line to turn domestic water heaters on and off. Of course when we took a lightning strike on the lines interesting things used to happen.

Matthew Squair

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