RE: one more thing about duty cycle...
I agree. The comment was meant to imply the requirement to comply with whatever instructions that the FCC provided, not that the TCB was free to interpret. If all instructions were followed, then, as an extension of the FCC, any testing and approval within the scope of the TCB program is valid. Best regards, Don Umbdenstock Sensormatic -- From: John Shinn[SMTP:john.sh...@sanmina.com] Reply To: john.sh...@sanmina.com Sent: Tuesday, October 30, 2001 8:19 PM To: umbdenst...@sensormatic.com; emc-p...@majordomo.ieee.org; stu...@timcoengr.com Subject: RE: one more thing about duty cycle... Do not assume that a TCB is an extension of the FCC. Think of a TCB as a outsourced subcontractor reviewing reports. They are not allowed to interpret the Rules. If there is a question regarding interpretation, they, the TCB, will have recourse to the FCC. End of Story. John Shinn, P.E. Manager, Laboratory Operations Sanmina Homologation Services -Original Message- From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of umbdenst...@sensormatic.com Sent: Tuesday, October 30, 2001 2:08 PM To: emc-p...@majordomo.ieee.org; stu...@timcoengr.com Subject: RE: one more thing about duty cycle... Who is the final authority? It would seem to me that this would be the one who wrote the rules -- the FCC. So if you are audited and questioned about the correct handling of factors, you merely produce the FCC generated instructions and show that you comply with the instructions. End of issue. After all, a TCB is an extension of the FCC. Best regards, Don Umbdenstock Sensormatic -- From: Stuart Lopata[SMTP:stu...@timcoengr.com] Reply To: Stuart Lopata Sent: Tuesday, October 30, 2001 10:27 AM To: emc Subject:one more thing about duty cycle... I found the reference that used 20log() for the correction factors. TCB Training Unlicensed Devices Part I Richard Fabina This was given to us by the FCC for training our TCB people and part of a TCB training course at NIST. I agree that the correction factor should be 10log(), but would like to see a confirmation from the actual certifiers. So who is the final authority? Sincerely, Stuart Lopata --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: one more thing about duty cycle...
Do not assume that a TCB is an extension of the FCC. Think of a TCB as a outsourced subcontractor reviewing reports. They are not allowed to interpret the Rules. If there is a question regarding interpretation, they, the TCB, will have recourse to the FCC. End of Story. John Shinn, P.E. Manager, Laboratory Operations Sanmina Homologation Services -Original Message- From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of umbdenst...@sensormatic.com Sent: Tuesday, October 30, 2001 2:08 PM To: emc-p...@majordomo.ieee.org; stu...@timcoengr.com Subject: RE: one more thing about duty cycle... Who is the final authority? It would seem to me that this would be the one who wrote the rules -- the FCC. So if you are audited and questioned about the correct handling of factors, you merely produce the FCC generated instructions and show that you comply with the instructions. End of issue. After all, a TCB is an extension of the FCC. Best regards, Don Umbdenstock Sensormatic -- From: Stuart Lopata[SMTP:stu...@timcoengr.com] Reply To: Stuart Lopata Sent: Tuesday, October 30, 2001 10:27 AM To: emc Subject: one more thing about duty cycle... I found the reference that used 20log() for the correction factors. TCB Training Unlicensed Devices Part I Richard Fabina This was given to us by the FCC for training our TCB people and part of a TCB training course at NIST. I agree that the correction factor should be 10log(), but would like to see a confirmation from the actual certifiers. So who is the final authority? Sincerely, Stuart Lopata --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: one more thing about duty cycle...
I have no idea what the reference is but please recall that I demonstrated two items: AVERAGE DETECTION is numerically computed by derating peak detected signal by 10 log (duty cycle) (assumes time constants are long wrt to IF filter time constant). PULSE DESENSITIZATION (or broadband correction) is calculated as 20 log (duty cycle) added to peak detected signal (working in log space). This assumes that duty cycle of detected signal is short relative to IF filter time constant. In order for this to have any validity, a victim receiver must exist which has a wider IF bandwidth than the test receiver which made the measurement. -- From: Stuart Lopata stu...@timcoengr.com To: emc emc-p...@majordomo.ieee.org Subject: one more thing about duty cycle... Date: Tue, Oct 30, 2001, 9:27 AM I found the reference that used 20log() for the correction factors. TCB Training Unlicensed Devices Part I Richard Fabina This was given to us by the FCC for training our TCB people and part of a TCB training course at NIST. I agree that the correction factor should be 10log(), but would like to see a confirmation from the actual certifiers. So who is the final authority? Sincerely, Stuart Lopata --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
