Editing Time from NPL (MSF) (section)

==Transmission and reception==
The transmitted signal has an [[effective radiated power]] of 17 [[kilowatt|kW]], on a frequency of 60 [[kilohertz|kHz]] to within 2 parts in 10<sup>12</sup>.<ref name="nplmsf" /> The signal strength is greater than 10 mV/m at {{convert|100|km|mi|abbr=on}}; it is greater than 100 μV/m at {{convert|1,000|km|mi|abbr=on}} from the transmitter, and thus can be received at not less than this strength throughout the UK.<ref name="moved">{{cite web|title=Time Has Moved |publisher=National Physical Laboratory, UK |access-date=6 April 2007 |url=http://www.npl.co.uk/time/msf/change.html |url-status=unfit |archive-url=https://web.archive.org/web/20070927004145/http://www.npl.co.uk/time/msf/change.html |archive-date=September 27, 2007 }}</ref> The signal can also be received, and is widely used, in northern and western Europe.<ref name="nplmsf" />

While at Rugby, the transmitter generated 60&nbsp;kW of [[radio frequency]] power (using 70&nbsp;kW of [[Mains electricity|mains power]]). The 180 metre-high (590') [[T-aerial]] antenna was {{convert|500|m|ft}} across at its top. The vertical part of the antenna radiated the signal, so that the received strength was similar in all directions (it was approximately [[Omnidirectional antenna|omnidirectional]]).<ref name="faqs" />