[PSES] IEC / EN 62368-1 Annex E

[Chris Wordley]

Hello experts

I have a question about how Annex E of EN 62368-1:2020 should be interpreted.

Does the classification of the audio amplifier output terminals need to be done 
with the worst case out-of-phase audio signals (to give the maximum channel to 
channel voltage) or with the signals in phase? 

I believe worst case is appropriate, but might not be quite in the general 
spirit of the annex; it would be interesting to know how this gets tested in 
practice.  

Thanks
Chris

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Re: [PSES] Radio receivers under RED? Yes

[Charlie Blackham]

Amund

Yes, receivers are within scope of RED as they meet the definition of “radio 
equipment” in article 2:

‘radio equipment’ means an electrical or electronic product, which 
intentionally emits and/or receives radio waves for the purpose of radio 
communication and/or radiodetermination, or an electrical or electronic product 
which must be completed with an accessory, such as antenna, so as to 
intentionally emit and/or receive radio waves for the purpose of radio 
communication and/or radiodetermination;

Best regards
Charlie

Charlie Blackham
Sulis Consultants Ltd
Tel: +44 (0)7946 624317
Web: https://sulisconsultants.com/
Registered in England and Wales, number 05466247

From: Amund Westin 
Sent: Tuesday, September 5, 2023 7:17 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Radio receivers under RED? Yes


I think we have discussed this topic previous, but I can’t find the email tread.

But I assume it is the fact the equipment that even only receive, will anyway 
be included under RED. In this case, it’s a radio receiver measurement device 
with whip antenna mounted and that receives in the VHF/UHF range.



From RED text, page 2:

(11) Although receivers do not themselves cause harmful interference, reception 
capabilities are an increasingly important factor in ensuring the efficient use 
of radio spectrum by way of an increased resilience of receivers against 
harmful interference and unwanted signals on the basis of the relevant 
essential requirements of Union harmonisation legislation.



Thanks!

BR

Amund



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[PSES] Radio receivers under RED? Yes

[Amund Westin]

I think we have discussed this topic previous, but I can’t find the email tread.

But I assume it is the fact the equipment that even only receive, will anyway 
be included under RED. In this case, it’s a radio receiver measurement device 
with whip antenna mounted and that receives in the VHF/UHF range.

 

>From RED text, page 2:

(11) Although receivers do not themselves cause harmful interference, reception 
capabilities are an increasingly important factor in ensuring the efficient use 
of radio spectrum by way of an increased resilience of receivers against 
harmful interference and unwanted signals on the basis of the relevant 
essential requirements of Union harmonisation legislation.

 

Thanks!

BR

Amund


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