Re: [PSES] Happy New Year 2022

[John Woodgate]

Your seasonal felicitations are cordially reciprocated.

==
Best wishes John Woodgate OOO-Own Opinions Only
www.woodjohn.uk
Rayleigh, Essex UK
Istae nunc praetereunt nisi non ubicumque



On 2021-12-22 18:33, Ruth Shapira wrote:


*Dear friends,***

*From the Holy Land I wish you a Merry Christmas and a Happy New Year 
2022 with good health and accomplishments.***


*Happy New Year 2022!***

**

*With all friendship,***

*Steli***

**

**

**

**

*Steli Loznen*, M.Sc., SM-IEEE

VP for Technical Activities and Member of BoG IEEE-PSES

Convener IEC 62A/MT29+MT 62354

17-3 Shaul HaMelech Blvd.

Tel Aviv 6436719

Israel

Tel:+972-3-6912668

Fax:+972-3-6913988

Mobile:+972-54-4818816

e-mail: *sloz...@ieee.org*

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[PSES] Happy New Year 2022

[Ruth Shapira]

Dear friends,
>From the Holy Land I wish you a Merry Christmas and a Happy New Year 2022 with 
>good health and accomplishments.
Happy New Year 2022!

With all friendship,
Steli




Steli Loznen, M.Sc., SM-IEEE
VP for Technical Activities and Member of BoG IEEE-PSES
Convener IEC 62A/MT29+MT 62354
17-3 Shaul HaMelech Blvd.
Tel Aviv 6436719
Israel
Tel:+972-3-6912668
Fax:+972-3-6913988
Mobile:+972-54-4818816
e-mail: sloz...@ieee.org


-

This message is from the IEEE Product Safety Engineering Society emc-pstc 
discussion list. To post a message to the list, send your e-mail to 


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Re: [PSES] FCC Part 15 - Frequency range of radiated emissions

[Paolo Roncone]

Hello Charlie

Thanks a lot!  Now it's much clearer to me.

Best regards
Paolo

On Tue, Dec 21, 2021 at 9:01 PM Charlie Blackham <
char...@sulisconsultants.com> wrote:

> Paolo
>
>
>
> I would recommend FCC KDB 996369 D04 Module Integration Guide V02
>
>
> https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?id=44637=P
>
>
>
> § 15.33(a) gives you an upper frequency of 12.5 GHz for part 15B “emc”
> emissions
>
> § 15.33(b) gives you an upper frequency of 25 GHz for part 15C “radio
> spurious” emissions
>
>
>
> 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:* Paolo Roncone 
> *Sent:* 21 December 2021 12:24
> *To:* EMC-PSTC@LISTSERV.IEEE.ORG
> *Subject:* Re: [PSES] FCC Part 15 - Frequency range of radiated emissions
>
>
>
> Hi David
>
>
>
> Thanks for the reply
>
> You mean both EMI and Radio must cover up to 10× BT module frequency?
>
>
>
> Thanks again
>
> Paolo
>
>
>
> On Tue, Dec 21, 2021, 13:05 David Schaefer 
> wrote:
>
> Paolo,
>
>
>
> You are correct. Part 15.33 requires 10x the highest frequency, including
> the radio.
>
>
>
> https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15
>
> *§ 15.33 Frequency range of radiated measurements.*
>
> (a) For an intentional radiator, the spectrum shall be investigated from
> the lowest radio frequency signal generated in the device, without going
> below 9 kHz, up to at least the frequency shown in this paragraph:
>
> (1) If the intentional radiator operates below 10 GHz: to the tenth
> harmonic of the highest fundamental frequency or to 40 GHz, whichever is
> lower.
>
>
>
> Thanks,
>
>
>
>
>
> *David Schaefer**​*
>
> Technical Manager
>
> Element Materials Technology
>
> 9349 W Broadway Ave
>
> Brooklyn Park
>
> ,
>
> MN
>
> 55445
>
> ,
>
> United States
>
> O *+1 612 638 5136* <+1%20612%20638%205136>
>
> ext. 10461
>
> *david.schae...@element.com* 
>
> www.element.com
>
>
> 
>
> 
>
> 
>
> *From:* Paolo Roncone [mailto:paoloc...@gmail.com]
> *Sent:* Tuesday, December 21, 2021 5:32 AM
> *To:* EMC-PSTC@LISTSERV.IEEE.ORG
> *Subject:* [PSES] FCC Part 15 - Frequency range of radiated emissions
>
>
>
> *CAUTION:*This email originated from outside of Element Materials
> Technology. *DO NOT* click links or open attachments unless you recognize
> the sender and know the content is safe. Please contact IT Service Desk if
> you are in any doubt about this email.
>
> Hi all,
>
>
>
> an EUT with built-in Bluetooth 2.4 GHz module must be tested - as any
> electrical/electronic equipment sold in the USAm to FCC requirements for
> EMI.
>
>
>
> Questions:
>
> 1. What is the frequency range of EMI radiated emissions for the EUT in
> question?
>
> According to § 15.33 of Part 15:
>
> https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15#15.33
>
>
>
> [image: image.png]
>
> My understanding is that the above mentioned EUT must be tested up to at
> least  10 x 2.4 GHz = 24 GHz for radiated emissions, with the limits
> specified in § 15.109 (Field strength in uVolts/m).
>
>
>
> 2. Does it make any difference wrt question 1 (EMI frequency range), if
> the 2.4G Bluetooth module is already covered by a Declaration of conformity
> or certified according to FCC 47 CFR Part 2 Subpart J (spurious emissions,
> or Radio tests) ?
>
> https://www.ecfr.gov/current/title-47/part-2/subpart-J
>
>
>
> According to a colleague of mine, if the Bluetooth module is already Radio
> tested and/or certified, we may test the subject EUT as an "unintentional
> radiator" (Subpart B), excluding the 2.4 GHz and the 10x rule, but using
> the 5x highest frequency rule for unintentional radiators as the radiated
> EMI range.
>
>
>
> [image: image.png]
>
> I'm not at all convinced..
>
>
>
> I hope someone in this forum can clarify this.
>
>
>
> Thanks a lot in advance and happy holidays!
>
>
>
> Paolo
>
>
>
>
>
>
>
>
>
>
>
> -
> 
>
> This message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. To post a message to the list, send your e-mail to <
> emc-p...@ieee.org>
>
> All emc-pstc postings are archived and searchable on the web at:
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>
> Attachments are not permitted but the IEEE PSES Online Communities site at
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> well-used formats), large files, etc.
>
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