Amund, I agree the 99% Occupied Bandwidth would need to reside within the band of operation. You'd have to follow the procedure in ETSI EN 300 220-1 V3.1.1 Clause 5.6 to determine what the center frequency needs to be depending on your modulation type.
If you're saying you already know the 99% OBW is 200 kHz, then I would believe you'd need a center frequency of ~863.11 MHz, because it would be half of the OBW, or the edge of the signal would be at 863.01 MHz with a 863.11 MHz center frequency. Larry K. Stillings Compliance Worldwide, Inc. Test Locally, Sell Globally and Launch Your Products Around the World! FCC - Wireless - Telecom - CE Marking - International Approvals - Product Safety 357 Main Street Sandown, NH 03873 (603) 887 3903 Fax 887-6445 complianceworldwide.com<https://complianceworldwide.com> <https://complianceworldwide.com> Privileged/Confidential Information may be contained in this message. If you are not the addressee indicated in this message (or responsible for delivery of the message to such person), you may not copy or deliver this message to anyone. In such case, you should destroy this message and kindly notify the sender by reply email. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of my firm shall be understood as neither given nor endorsed by it. From: Amund Westin Sent: Tuesday, April 02, 2024 1:04 PM To: [email protected] Subject: [PSES] 863MHz - Short Range Devices Case: Running an IoT device with center frequency 863.00MHz and with occupied bandwidth 200kHz. Such setup would mean that half the spectrum would fall into the 862MHz band. My first thoughts would be, that it is outside the Band K (863-865) and not allowed. I would have to at least step it up to 863.25MHz, to have some margin between the lower part of the signal spectrum and the lower edge of the frequency band. [cid:[email protected]] The I came over the new draft issue of EN 300 220-2: https://www.etsi.org/deliver/etsi_en/300200_300299/30022002/03.02.02_20/en_30022002v030202ev.pdf >From table 2, page 20: [cid:[email protected]] Here we have a new band K0, 862-863MHz. So, it's a kind of extension of the 863-865MHz band. Question 1: Would it be allowed to transmit in the 863MHz band, but still have some part of the spectrum coming into the 862-863MHz band? Question 2: Transmit in the edge between to bands (862-863MHz and 863-865MHz), which means center frequency 863.00MHz, is anyway, not allowed? Best regards Amund ________________________________ 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 [email protected]<mailto:[email protected]> All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/[email protected]/<https://www.mail-archive.com/[email protected]/%20> Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe)<https://ewh.ieee.org/soc/pses/list.html> List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: [email protected]<mailto:[email protected]> Rick Linford at: [email protected]<mailto:[email protected]> For policy questions, send mail to: Jim Bacher at: [email protected]<mailto:[email protected]> ________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 - ---------------------------------------------------------------- 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 [email protected] All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/[email protected]/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: [email protected] Rick Linford at: [email protected] For policy questions, send mail to: Jim Bacher: <[email protected]> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
