Asking Ofcom for a license or Nov to generate a signal that will not
extend past your own garden seems like a lot of trouble for
nothing....

-- 
73 Warren K2ORS
                WD2XGJ
                WD2XSH/23
                WE2XEB/2
                WE2XGR/1


On Thu, Feb 25, 2010 at 3:28 PM, Jacek Lipkowski <[email protected]> wrote:
> On Thu, 25 Feb 2010, Roger Lapthorn wrote:
>
>> People may be interested in the reply from Rod Wilkinson at OFCOM received
>> today. I asked him what OFCOM's view would be.
>
> [...]
>>
>> They state that ITU Radio Regs indicate that there is no allocation for
>> frequencies below 9 kHz. However in the UK, a licence would be required as
>> there is no lower frequency limit for wireless telegraphy under the WT Act
>> 2006. [...]
>
> there is already a very big commercial user of the elf and vlf spectrum,
> they inject very big power into ground dipoles. emissions from one continent
> can be heard on another. and they do this without any license from the radio
> authorities. the only regulation they need regards maximum field strengths
> (and this is usually the realm of some environmental protection authority
> and not the radio authority). the operating frequency varies, but is usually
> 50Hz, 60Hz, 16.6Hz etc :)
>
> sometimes when dealing with the goverment, the best practice is not to ask
> at all :) even if they agree with you there will always be a "but you will
> need a license for that" clause.
>
> if you have to ask, ask them if it is their duty to regulate potential
> electromagnetic wave transmission from instalations operating on 50Hz (or
> any other frequency in the 0-9kHz region, that is not ITU regulated). you
> would probably get an entirely different answer :)
>
> VY 73
>
> Jacek / SQ5BPF
>
> ps. the answer that you got from OFCOM is actually very nice