[arrl-odv:27349] ARRL EMC Committee Meeting - DOCUMENT #16

Greetings, Please find attached the July 2018 ARRL EMC CommitteeReport, Document #16. The Report and Appendices are attachedas two separate PDF files. As always, please contact me directlywith any suggested edits or corrections. Respectfully Submitted, 73, Kermit Carlson W9XA ARRL EMC Committee Chair ARRL Central Division Director

Kermit Who is the solar products manufacturer discussed under "Solar PV Systems"? And — please — could we all agree to number the pages in our reports to make it easier to discuss them? T What plans do we have to clone Mike Gruber or find a suitable replacement? Kermit, thanks to you and the EMC Committee for the extensive work, by the way. 73 _______________________________________ John Robert Stratton N5AUS Vice Director Legislative Director West Gulf Division Office:512-445-6262 Cell:512-426-2028 P.O. Box 2232 Austin, Texas 78768-2232 *_______________________________________* **** On 7/12/18 9:09 PM, Kermit Carlson via arrl-odv wrote:
Greetings,
Please find attached the July 2018 ARRL EMC Committee Report, Document #16. The Report and Appendices are attached as two separate PDF files. As always, please contact me directly with any suggested edits or corrections.
Respectfully Submitted,
73, Kermit Carlson W9XA ARRL EMC Committee Chair ARRL Central Division Director
Inline image
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Hello John - THe manufacturer is Solar Edge, I also believe that theyare the OEM of the problematic optimizer circuit. A re-designed versionis in the supply chain and the problem that their system presents canbe remedied - but with PV systems becoming a cottage industry (especiallyin California) we will need real-time input from the field to keep harmful interference problems in check. The important take-home from the Solar Edge story, is that industry really worked well with the ARRL lab(Mike and Ed) to solve the problem. We are starting a cloning process in the lab, but we aren'tsupposed to tell anyone. Thanks for the kind words, I will pass your message along to theCommittee. See you in a few days ! GUD DX es 73, - Kermit W9XA On Thursday, July 12, 2018, 9:28:22 PM CDT, John Robert Stratton <N5AUS@n5aus.com> wrote: Kermit Who is the solar products manufacturer discussed under "Solar PV Systems"? And — please — could we all agree to number the pages in our reports to make it easier to discuss them? T What plans do we have to clone Mike Gruber or find a suitable replacement? Kermit, thanks to you and the EMC Committee for the extensive work, by the way. 73 _______________________________________ John Robert Stratton N5AUS Vice Director Legislative Director West Gulf Division Office: 512-445-6262 Cell: 512-426-2028 P.O. Box 2232 Austin, Texas 78768-2232 _______________________________________ On 7/12/18 9:09 PM, Kermit Carlson via arrl-odv wrote: Greetings, Please find attached the July 2018 ARRL EMC Committee Report, Document #16. The Report and Appendices are attached as two separate PDF files. As always, please contact me directly with any suggested edits or corrections. Respectfully Submitted, 73, Kermit Carlson W9XA ARRL EMC Committee Chair ARRL Central Division Director _______________________________________________ arrl-odv mailing list arrl-odv@reflector.arrl.org https://reflector.arrl.org/mailman/listinfo/arrl-odv _______________________________________________ arrl-odv mailing list arrl-odv@reflector.arrl.org https://reflector.arrl.org/mailman/listinfo/arrl-odv

Kermit Indentured servitude is another option. There is also another attack on bad solar installations. Besides the equipment, there is a problem with the installers, some of whom are effectively high pressure car salesmen who use unskilled labor to perform the installations. Neither the company owners nor the installers have a clue. We can discuss at meeting. 73 _______________________________________ John Robert Stratton N5AUS Vice Director Legislative Director West Gulf Division Office:512-445-6262 Cell:512-426-2028 P.O. Box 2232 Austin, Texas 78768-2232 *_______________________________________*** On 7/12/18 9:38 PM, Kermit Carlson via arrl-odv wrote:
Hello John -
THe manufacturer is Solar Edge, I also believe that they are the OEM of the problematic optimizer circuit. A re-designed version is in the supply chain and the problem that their system presents can be remedied - but with PV systems becoming a cottage industry (especially in California) we will need real-time input from the field to keep harmful interference problems in check. The important take-home from the Solar Edge story, is that industry really worked well with the ARRL lab (Mike and Ed) to solve the problem.
We are starting a cloning process in the lab, but we aren't supposed to tell anyone.
Thanks for the kind words, I will pass your message along to the Committee. See you in a few days !
GUD DX es 73,
- Kermit W9XA
On Thursday, July 12, 2018, 9:28:22 PM CDT, John Robert Stratton <N5AUS@n5aus.com> wrote:
Kermit
Who is the solar products manufacturer discussed under "Solar PV Systems"?
And — please — could we all agree to number the pages in our reports to make it easier to discuss them? T
What plans do we have to clone Mike Gruber or find a suitable replacement?
Kermit, thanks to you and the EMC Committee for the extensive work, by the way.
73
_______________________________________
John Robert Stratton
N5AUS
Vice Director
Legislative Director
West Gulf Division
Office:512-445-6262
Cell:512-426-2028
P.O. Box 2232
Austin, Texas 78768-2232
*_______________________________________*
****
On 7/12/18 9:09 PM, Kermit Carlson via arrl-odv wrote: Greetings,
Please find attached the July 2018 ARRL EMC Committee Report, Document #16. The Report and Appendices are attached as two separate PDF files. As always, please contact me directly with any suggested edits or corrections.
Respectfully Submitted,
73, Kermit Carlson W9XA ARRL EMC Committee Chair ARRL Central Division Director
Inline image
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Did the ARRL lab have influence on the re-designed version that is in the supply chain? I was presenting at a club last week and I was asked about the Lab working with some manufacturers on devices that had interference problems. I was asked about the prognosis of that actually being effective. I told him I would do some checking and get back to him since I didn’t have a good answer on the spot. I dropped Kermit’s name and the EMC Committee, along with the ARRL Lab in that conversation. If the ARRL Lab did have some influence, is that something we can share specifically? Bonnie AB7ZQ From: arrl-odv <arrl-odv-bounces@reflector.arrl.org> On Behalf Of Kermit Carlson via arrl-odv Sent: Thursday, July 12, 2018 7:38 PM To: arrl-odv@reflector.arrl.org; Carlson Kermit <w9xa@arrl.org>; John Robert Stratton <N5AUS@n5aus.com> Subject: [arrl-odv:27351] Re: ARRL EMC Committee Meeting - DOCUMENT #16 Hello John - THe manufacturer is Solar Edge, I also believe that they are the OEM of the problematic optimizer circuit. A re-designed version is in the supply chain and the problem that their system presents can be remedied - but with PV systems becoming a cottage industry (especially in California) we will need real-time input from the field to keep harmful interference problems in check. The important take-home from the Solar Edge story, is that industry really worked well with the ARRL lab (Mike and Ed) to solve the problem. We are starting a cloning process in the lab, but we aren't supposed to tell anyone. Thanks for the kind words, I will pass your message along to the Committee. See you in a few days ! GUD DX es 73, - Kermit W9XA On Thursday, July 12, 2018, 9:28:22 PM CDT, John Robert Stratton <N5AUS@n5aus.com <mailto:N5AUS@n5aus.com> > wrote: Kermit Who is the solar products manufacturer discussed under "Solar PV Systems"? And — please — could we all agree to number the pages in our reports to make it easier to discuss them? T What plans do we have to clone Mike Gruber or find a suitable replacement? Kermit, thanks to you and the EMC Committee for the extensive work, by the way. 73 _______________________________________ John Robert Stratton N5AUS Vice Director Legislative Director West Gulf Division Office: 512-445-6262 Cell: 512-426-2028 P.O. Box 2232 Austin, Texas 78768-2232 _______________________________________ On 7/12/18 9:09 PM, Kermit Carlson via arrl-odv wrote: Greetings, Please find attached the July 2018 ARRL EMC Committee Report, Document #16. The Report and Appendices are attached as two separate PDF files. As always, please contact me directly with any suggested edits or corrections. Respectfully Submitted, 73, Kermit Carlson W9XA ARRL EMC Committee Chair ARRL Central Division Director _______________________________________________ arrl-odv mailing list arrl-odv@reflector.arrl.org <mailto:arrl-odv@reflector.arrl.org> https://reflector.arrl.org/mailman/listinfo/arrl-odv _______________________________________________ arrl-odv mailing list arrl-odv@reflector.arrl.org <mailto:arrl-odv@reflector.arrl.org> https://reflector.arrl.org/mailman/listinfo/arrl-odv

Hello Bonnie and Tom, Yes, the Laboratory did have a direct impact on the handling of interference issues experienced by the end user of that manufacturer'sdevice. It was probably not the sole reason for the redesign but theimportance of the EMC considerations were definitely amplified bydirect contact with the ARRL Lab staff. I do need to check about the conditions that exists between thatmanufacturer and any possible NDA agreement that was establishedin order to facilitate direct dialog with that manufacturer. Again, thebest resolution will arise when there is cooperation between the Leagueand manufacturers. This also points up the need for us to be directlyinvolved with the writing of industry EMC standards 73, Kermit On Friday, July 13, 2018, 1:43:35 AM CDT, Bonnie Altus <bonniealtus@onlinemac.com> wrote: Did the ARRL lab have influence on the re-designed version that is in the supply chain? I was presenting at a club last week and I was asked about the Lab working with some manufacturers on devices that had interference problems. I was asked about the prognosis of that actually being effective. I told him I would do some checking and get back to him since I didn’t have a good answer on the spot. I dropped Kermit’s name and the EMC Committee, along with the ARRL Lab in that conversation. If the ARRL Lab did have some influence, is that something we can share specifically? Bonnie AB7ZQ From: arrl-odv <arrl-odv-bounces@reflector.arrl.org> On Behalf Of Kermit Carlson via arrl-odv Sent: Thursday, July 12, 2018 7:38 PM To: arrl-odv@reflector.arrl.org; Carlson Kermit <w9xa@arrl.org>; John Robert Stratton <N5AUS@n5aus.com> Subject: [arrl-odv:27351] Re: ARRL EMC Committee Meeting - DOCUMENT #16 Hello John - THe manufacturer is Solar Edge, I also believe that they are the OEM of the problematic optimizer circuit. A re-designed version is in the supply chain and the problem that their system presents can be remedied - but with PV systems becoming a cottage industry (especially in California) we will need real-time input from the field to keep harmful interference problems in check. The important take-home from the Solar Edge story, is that industry really worked well with the ARRL lab (Mike and Ed) to solve the problem. We are starting a cloning process in the lab, but we aren't supposed to tell anyone. Thanks for the kind words, I will pass your message along to the Committee. See you in a few days ! GUD DX es 73, - Kermit W9XA On Thursday, July 12, 2018, 9:28:22 PM CDT, John Robert Stratton <N5AUS@n5aus.com> wrote: Kermit Who is the solar products manufacturer discussed under "Solar PV Systems"? And — please — could we all agree to number the pages in our reports to make it easier to discuss them? T What plans do we have to clone Mike Gruber or find a suitable replacement? Kermit, thanks to you and the EMC Committee for the extensive work, by the way. 73 _______________________________________ John Robert Stratton N5AUS Vice Director Legislative Director West Gulf Division Office: 512-445-6262 Cell: 512-426-2028 P.O. Box 2232 Austin, Texas 78768-2232 _______________________________________ On 7/12/18 9:09 PM, Kermit Carlson via arrl-odv wrote: Greetings, Please find attached the July 2018 ARRL EMC Committee Report, Document #16. The Report and Appendices are attached as two separate PDF files. As always, please contact me directly with any suggested edits or corrections. Respectfully Submitted, 73, Kermit Carlson W9XA ARRL EMC Committee Chair ARRL Central Division Director _______________________________________________arrl-odv mailing listarrl-odv@reflector.arrl.orghttps://reflector.arrl.org/mailman/listinfo/arrl-odv _______________________________________________ arrl-odv mailing list arrl-odv@reflector.arrl.org https://reflector.arrl.org/mailman/listinfo/arrl-odv _______________________________________________ arrl-odv mailing list arrl-odv@reflector.arrl.org https://reflector.arrl.org/mailman/listinfo/arrl-odv
participants (3)
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Bonnie Altus
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John Robert Stratton
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Kermit Carlson