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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc.

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Old 15th Apr 2021, 6:54 pm   #181
Helder Crespo
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Default Re: Television in the Home

Quote:
Originally Posted by Panrock View Post
I recently totted up the transmitter powers at CP, assumed they are erp's not eirp's and a mean frequency of 550 MHz, and fed this into the Ofcom ICNIRP calculator, I got a minimum safe distance of 434 metres.

Of course, this is 'in the beam' though....

Steve
Thanks Steve. I calculated the (straight line, fixed height) distance on google maps, and I got 390 metres. The distance to the top (220m height) is roughly 450m, which is closer to your minimum safe distance of 434 metres (phew!), but still...

Do you know where I could find the radiation pattern for the CP transmitter?

Helder
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Old 15th Apr 2021, 7:47 pm   #182
Helder Crespo
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Default Re: Television in the Home

Steve, I found the radiation pattern at ofcom:
https://www.ofcom.org.uk/__data/asse...l-plan-v13.pdf

Is the azimuthal angle measured with respect to North?

Helder
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Old Yesterday, 3:00 am   #183
Panrock
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Default Re: Television in the Home

Hi Helder.

Since this is now going rather off-topic for the thread, I shall reply by Private Message.

Steve
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