Hi, Those interested in knowing what the UK requirements are should take a look at the January 2003 edition of MPT 1570 "Radiation Limits and Measurement Specification - Electromagnetic radiation in the range 9 kHz to 1.6 MHz from material substances forming part of a telecommunication system". This document is a regulation under the control of the Radiocommunications Agency, it is not a British Standard.
MPT 1570 uses in-situ measurements of a 'live' telecommunications network, it is not a product standard (although product requirements will likely feed down >from the telecommunications network operators). Talks have been going on within a joint group of CENELEC and ETSI for a couple of years on this subject, and they're still at it. If you're a broadcaster or radio ham you want the noise floor to be as low as possible, but if your a network operator employing DSL or PLT technology then you want to use deliver bandwidth to your customers over existing cabling intended for much lower frequencies - and that means increasing the noise floor. So the debate continues... By the way, if you want the address of the RA, it is: RADIOCOMMUNICATIONS AGENCY Wyndham House 189 Marsh Wall London E14 9SX Email: [email protected] Regards, Richard Hughes Safety Answers Ltd.
