The LAA guidance link is contained in the Latest News section of the
website
http://www.lightaircraftassociation.co.uk/2021/News/Ofcom_guidance.html
As Alan says, OFCOM have backed off and now recognise (we hope) that our
little aircraft are no threat and they are owned by people who are not
experts in the subject. As a result of input from the LAA and AOPA , OFCOM
have issued simplified guidance see
https://www.ofcom.org.uk/__data/assets/pdf_file/0027/220797/emf-licence-con
dition-what-you-need-to-know-aeronautical-radio.pdf
Brian
On Sat, Aug 28, 2021 at 9:09 AM Alan Burrill <alanb@dpy01.co.uk> wrote:
> This is what I have done for my aircraft and installation. I have attache
d
> to the aircraft documents the following:
>
> I have undertaken an assessment required by Ofcom to determine the risk o
f
> exposure to harmful EMF radiation from equipment installed and determined
> the following.
>
> FLARM Equipment: The radiated power is below that required for an
> assessment.
>
> VHF Handheld Radio: The radiated power is below that required for
> assessment.
>
> VHF Radio: The manufactures stated specification for nominal output powe
r
> is 6 watt. The radio is used for less than 90 seconds in any 6 minute
> period and is therefore compliant.
>
> Transponder: I have undertaken an assessment an determined that with a
> manufactures specified output of 125 watt and a duty cycle of 0.55% the
> radiated power is less than 4 watt. The compliance distance required is
> determined as less than 26cm (0.26m). The antenna is mounted in the rear
> fuselage and is more than 26 cm from the passenger compartment and is is
> only selected to transmit prior to take-of and deselected as part of the
> after landing checks.
>
> From the above assessment I have determined that there is no risk of EMF
> exposure to the General Public from any transmitter equipment installed i
n
> this aircraft.
>
>
> This is specific to my aircraft but hope that helps.
>
> Alan Burrill
>
> PS I am a retired radar engineer and provided the technical
> feedback/advice on compliance to the CAA and Ofcom through AOPA.
>
> Sent from my iPad
>
> On 28 Aug 2021, at 07:52, Alan Burrill <alanb@dpy01.co.uk> wrote:
>
> =EF=BBFrom the AOPA Website:
>
>
> https://www.aopa.co.uk/news-media/selected-news/item/745-ofcom-emf-guidan
ce-for-aeronautical-radio-users.html
>
> Alan Burrill
>
> Sent from my iPad
>
> On 27 Aug 2021, at 20:51, Paul Munford <pmdental@btinternet.com> wrote:
>
> =EF=BB
> To =93 Brian Davies
>
> re =93 Ofcom,....Try as I might I cannot find any reference to this
on the
> LAA website ?
>
> Any clues as to it=99s whereabouts please on the site ?
>
> Thankyou
>
> Paul
>
> *From:* Brian Davies
> *Sent:* Thursday, August 26, 2021 9:40 AM
> *To:* Europa-List@Matronics. Com
> *Subject:* Re: Europa-List: ofcom gobbledegook ??
>
> And for those not members of AOPA the LAA website has information.
> Basically, don't worry about it at the moment.
>
> Brian Davies
>
> On Wed, Aug 25, 2021 at 8:06 PM Alan Burrill <alanb@dpy01.co.uk> wrote:
>
>> I wrote an article for the August AOPA magazine.
>>
>> Alan Burrill
>> G-OBJT
>>
>> Sent from my iPhone
>>
>> On 25 Aug 2021, at 19:16, Paul Munford <pmdental@btinternet.com> wrote:
>>
>> =EF=BB
>> Hi All,
>>
>> Has anyone else had a letter from =98Ofcom=99 (UK) regarding
licensing
>> conditions ???
>>
>> Didn=99t understand a word of it & how it relates to us pilots ??
>>
>> There is a due date of 18th Nov 2021 relating to our frequency useage bu
t
>> don=99t understand what we are supposed to do ??
>>
>> I=99m flying with a Garmin 225a transeiver & a Garmin GTX 328 Tran
sponder
>> (installed 5yrs ago).
>>
>> Any help please ??
>>
>> Paul Munford G-OVPM
>>
>>
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