Many years ago, when I was working for a UK design and manufacturing off-shoot of a large US computer company (no names, no pack-drill for obvious reasons!! J), we had a 3/10/30m OATS on the roof of the main building, and we did a lot of swept frequency site attenuation measurements up there - in plain sight of the local TV station masts and of a defence company's very large aviation and manufacturing R&D facility, neither of which were more than a couple of miles away.
Must have got away with "EMI murder" - but you could not do that there now, least of all because the MoD later built a large facility right next door and I am sure their EM security/TEMPEST crews would sniff you out in no time at all! J John Allen W. London. UK From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Kunde, Brian Sent: 08 August 2012 14:03 To: edpr...@cox.net; emc-p...@ieee.org Subject: RE: [PSES] EU sets EMC limits for London Olympics I'm expecting the chamber companies to get together someday and hire Washington lobbyists to require all EMC Emissions testing to be done inside a chamber so not to be able to pickup signals from the protected bands. Back when there was analog cell phone, raise your hand if you DIDN'T stop and listen to the occasional conversation. 90% of the cell phone traffic occurred between 3:30pm and 6pm and went something like this. "Can you stop on your way home to pickup a gallon of milk?"... The Other Brian From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Ed Price Sent: Tuesday, August 07, 2012 5:50 PM To: emc-p...@ieee.org Subject: RE: [PSES] EU sets EMC limits for London Olympics In the USA, the legal perception of the public owning the spectrum is reflected in the government not touching receivers, starting way back with the beginnings of the FCC and the Communications Act of 1934. The government could, and did, license and control all emitters, extending their control as new emitters were recognized (receiver local oscillators, incidental radiators). Because of this precedent, there was always a "hands-off" attitude on receivers, uhh, until the money got big enough to put its thumb on the scales. The first limitations on receivers were not allowing receiving activity on cell-phone frequencies. This instantly made all EMI receivers and spectrum analyzers illegal, but they eventually got around to exempting measurement apparatus. (There was also a time when marketing of broadband amplifiers was also illegal; protection of the 11-meter band while the FCC thought it still had a chance.) Now, there are several restrictions on what you can receive and what kind of apparatus is not allowed. In our day to day testing operations, we are probably violating more than one legal restriction. The mark of a fine bureaucracy is to have passed sufficient legal restrictions that we are all guilty of something. The British apparently never had the mindset of public ownership of the spectrum, so its government had no precedent to keep it from realizing yet another revenue stream. John & Chris, do you agree with that? Ed Price El Cajon, CA USA From: Chris [mailto:cksal...@yahoo.com] Sent: Tuesday, August 07, 2012 1:18 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] EU sets EMC limits for London Olympics As I can remember from my memory. licensing a receiver was common in India, Pakistan, Bangladesh. local post offices issue an anual permint for use of a radio. If you have more than one radio you need aditional licences. BW/Color TV also had a higher annual fee. In these countries their army/navy/air force regulation/driving/education/legal system following the British system. back in those days my ordly use to bring me my bed tea in the morning at 5.30am. I also got 2 biscut (cookie) and a cup of tea in the evening at 4pm. Those were the good old days. Does anyone know if West Point has similar customs? From: "ralph.mcdiar...@schneider-electric.com" <ralph.mcdiar...@schneider-electric.com> To: John Woodgate <j...@jmwa.demon.co.uk> Cc: EMC-PSTC@LISTSERV.IEEE.ORG Sent: Tuesday, August 7, 2012 12:16 PM Subject: Re: [PSES] EU sets EMC limits for London Olympics I always thought the idea of licensing a receiver was odd. Was it just because the older television receivers were efficient unintentional radiators? ____________________________________________________________________________ ___ Ralph McDiarmid | Schneider Electric | Solar Business | CANADA | Regulatory Compliance Engineering From: John Woodgate <j...@jmwa.demon.co.uk> To: EMC-PSTC@LISTSERV.IEEE.ORG Date: 08/06/2012 11:17 PM Subject: Re: [PSES] EU sets EMC limits for London Olympics In message <cakeaba2ddm+zsvo4ur8dzduh5wshjpdptjyes6xkg31_yox...@mail.gmail.com>, dated Tue, 7 Aug 2012, IBM Ken <ibm...@gmail.com> writes: >Do you still need a license to own a television in the UK Yes. >and do they still send vans around to detect unlicensed TV's? Seldom, because current TVs don't radiate much. Instead, demographic information is used. Questions are periodically asked at each address at which no TV licence is recorded. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Instead of saying that the government is doing too little, too late or too much, too early, say they've got is exactly right, thus throwing them into total confusion. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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