Agreed, but the real issue is the ambiguity of 'may not'.  It can be interpreted as anything from 'shall not' or 'must not' to 'might not (but might)'. It really should be clarified.

Best wishes
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK

On 2019-11-01 13:01, Sykes, Bob wrote:

The devil is in the details (FCC Rules Part 15.5).  Comments below in [square brackets] are mine.

(1)This device may not cause harmful interference….  [*to licensed devices*.  Licensed devices are protected by the FCC Rules.  The other less obvious meaning of this part of the label statement is that a Part 15 device operates at sufferance and compliance with the technical standards does not relieve the equipment owner from non-interference.  It doesn’t matter if your product is 20dB below the FCC limit. If it is interfering, it must cease.]

(2) This device must accept any interference received, including interference that may cause undesired operation”    [Part 15 devices are offered no protection from interference (whether generated by licensed devices or not).  The FCC is only interested in protecting communications, not product quality.]

-Bob Sykes

*From:* Richard Nute [mailto:ri...@ieee.org]
*Sent:* Thursday, October 31, 2019 4:24 PM
*To:* EMC-PSTC@LISTSERV.IEEE.ORG
*Subject:* [EXTERNAL] [PSES] FCC regulatory statements

*CAUTION:*This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.

“This device complies with part 15 of the FCC Rules.  Operation is subject to the following two conditions:  (1) This device may not cause harmful interference, and  (2) this device must accept any interference received, including interference that may cause undesired operation”

Hmm.  So, if the device causes harmful interference, operation is prohibited (1).

And, if the device accepts interference that causes undesired operation, operation is prohibited (2).

A CFL causes undesirable interference with my radio.  So, operation of both the CFL and radio is prohibited.

Is my interpretation correct?

Best regards,

Rich

-
----------------------------------------------------------------

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 <mailto:emc-p...@ieee.org>>

All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_emc-2Dpstc.html&d=DwMFaQ&c=YEQWdgm3lcu5w_Y3fWOQZUGtAhl_lImuPlnxuD4zIqo&r=E-bIuBpV7qaznZidXiTC0TWb0gnLg1HYoyssP-ii97E&m=Jq1VLzpUQXtaTIWucQJWa1qytjusL5K2WMDZw0Up1JM&s=e9aNSfHN8L5ruw32_--yb0J8uddDlHxpTJKcQAw1_bs&e=>

Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ <https://urldefense.proofpoint.com/v2/url?u=http-3A__product-2Dcompliance.oc.ieee.org_&d=DwMFaQ&c=YEQWdgm3lcu5w_Y3fWOQZUGtAhl_lImuPlnxuD4zIqo&r=E-bIuBpV7qaznZidXiTC0TWb0gnLg1HYoyssP-ii97E&m=Jq1VLzpUQXtaTIWucQJWa1qytjusL5K2WMDZw0Up1JM&s=K06d6qZOGLN4fr58LacOGXNEnvxeHe4-YY1z-xX8JC4&e=> can be used for graphics (in well-used formats), large files, etc.

Website: http://www.ieee-pses.org/ <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_&d=DwMFaQ&c=YEQWdgm3lcu5w_Y3fWOQZUGtAhl_lImuPlnxuD4zIqo&r=E-bIuBpV7qaznZidXiTC0TWb0gnLg1HYoyssP-ii97E&m=Jq1VLzpUQXtaTIWucQJWa1qytjusL5K2WMDZw0Up1JM&s=0RKTwD7MbzddErzxEwZLsCpD_TGPyIR0O4VQ2JxYdlw&e=> Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_list.html&d=DwMFaQ&c=YEQWdgm3lcu5w_Y3fWOQZUGtAhl_lImuPlnxuD4zIqo&r=E-bIuBpV7qaznZidXiTC0TWb0gnLg1HYoyssP-ii97E&m=Jq1VLzpUQXtaTIWucQJWa1qytjusL5K2WMDZw0Up1JM&s=zzbGIeQsO2tEzfdsxcePZdW5wDnSUw4zxZMYZuRRCh4&e=> List rules: http://www.ieee-pses.org/listrules.html <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.ieee-2Dpses.org_listrules.html&d=DwMFaQ&c=YEQWdgm3lcu5w_Y3fWOQZUGtAhl_lImuPlnxuD4zIqo&r=E-bIuBpV7qaznZidXiTC0TWb0gnLg1HYoyssP-ii97E&m=Jq1VLzpUQXtaTIWucQJWa1qytjusL5K2WMDZw0Up1JM&s=M4yko067g7-kbPii-CxKOQWKwbS7HP-nUTvy-VLy9ds&e=>

For help, send mail to the list administrators:
Scott Douglas <sdoug...@ieee.org <mailto:sdoug...@ieee.org>>
Mike Cantwell <mcantw...@ieee.org <mailto:mcantw...@ieee.org>>

For policy questions, send mail to:
Jim Bacher <j.bac...@ieee.org <mailto:j.bac...@ieee.org>>
David Heald <dhe...@gmail.com <mailto:dhe...@gmail.com>>

------------------------------------------------------------------------

Please be advised that this email may contain confidential information. If you are not the intended recipient, please notify us by email by replying to the sender and delete this message. The sender disclaims that the content of this email constitutes an offer to enter into, or the acceptance of, any agreement; provided that the foregoing does not invalidate the binding effect of any digital or other electronic reproduction of a manual signature that is included in any attachment.

-
----------------------------------------------------------------

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 <mailto:emc-p...@ieee.org>>

All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html

Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc.

Website: http://www.ieee-pses.org/
Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)
List rules: http://www.ieee-pses.org/listrules.html

For help, send mail to the list administrators:
Scott Douglas <sdoug...@ieee.org <mailto:sdoug...@ieee.org>>
Mike Cantwell <mcantw...@ieee.org <mailto:mcantw...@ieee.org>>

For policy questions, send mail to:
Jim Bacher <j.bac...@ieee.org <mailto:j.bac...@ieee.org>>
David Heald <dhe...@gmail.com <mailto:dhe...@gmail.com>>


-
----------------------------------------------------------------
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:
http://www.ieee-pses.org/emc-pstc.html

Attachments are not permitted but the IEEE PSES Online Communities site at 
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used 
formats), large files, etc.

Website:  http://www.ieee-pses.org/
Instructions:  http://www.ieee-pses.org/list.html (including how to unsubscribe)
List rules: http://www.ieee-pses.org/listrules.html

For help, send mail to the list administrators:
Scott Douglas <sdoug...@ieee.org>
Mike Cantwell <mcantw...@ieee.org>

For policy questions, send mail to:
Jim Bacher:  <j.bac...@ieee.org>
David Heald: <dhe...@gmail.com>

Reply via email to