RE: 2 GHz Amplifiers
2003-10-01, the Date of Withdrawal (DOW) -Original Message- From: Dan Kwok [mailto:dk...@intetron.com] Sent: Sunday, October 14, 2001 2:35 PM To: Andrea Bishop; emc-p...@majordomo.ieee.org Subject: Re: 2 GHz Amplifiers Does anyone have an idea on when the cessation date for EN 300-339 will be once EN 301-498 V1.3.1 becomes harmonized? - Original Message - From: "Andrea Bishop" To: Sent: Wednesday, October 10, 2001 12:22 AM Subject: FW: 2 GHz Amplifiers > > ETSI EN 301 489-1 V 1.3.1 was formally published by ETSI on 26 September > 2001 and is therefore no longer Final Draft. > > According the the ETSI work programme, it was delivered to the Commission on > 27 September and is due to be cited in the Official Journal on 31 October. > It will then be a harmonised standard. > > regards > > Andrea Bishop > TUV Product Service Ltd > Fareham, Hants --- 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: 2 GHz Amplifiers
Does anyone have an idea on when the cessation date for EN 300-339 will be once EN 301-498 V1.3.1 becomes harmonized? - Original Message - From: "Andrea Bishop" To: Sent: Wednesday, October 10, 2001 12:22 AM Subject: FW: 2 GHz Amplifiers > > ETSI EN 301 489-1 V 1.3.1 was formally published by ETSI on 26 September > 2001 and is therefore no longer Final Draft. > > According the the ETSI work programme, it was delivered to the Commission on > 27 September and is due to be cited in the Official Journal on 31 October. > It will then be a harmonised standard. > > regards > > Andrea Bishop > TUV Product Service Ltd > Fareham, Hants --- 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: 2 GHz Amplifiers
Derek, One would be Final draft, ETSI EN 301 489-1 V1.3.1 (2001-07). Best regards, Don Umbdenstock Sensormatic > -- > From: lfresea...@aol.com[SMTP:lfresea...@aol.com] > Reply To: lfresea...@aol.com > Sent: Tuesday, October 09, 2001 3:53 PM > To: emc-p...@majordomo.ieee.org > Subject: Re: 2 GHz Amplifiers > > > Can anyone remind me what Standards require the 1.4 to 2.0 GHz Radiated > Immunity Test? > > Thanks, > > Derek Walton. > > --- > 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: 2 GHz Amplifiers
Can anyone remind me what Standards require the 1.4 to 2.0 GHz Radiated Immunity Test? Thanks, Derek Walton. --- 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: 2 GHz Amplifiers
Don, I worked in an EMC lab some years ago and we used a Milmega 1-2GHz 55W amplifier. Check out www.milmega.com There were no problems and that why we never managed to verify the customers service At that time we used a field probe from AR and the feedback procedure. We never tried to make a calibrated field as we had up to 1GHz. Why, because at that time there was not a requirement. I can't say today if the amplifier power was sufficient to make the calibrated field of 10V/m. Best regards Amund Westin On Tue, 18 Sep 2001 15:11:31 -0400 umbdenst...@sensormatic.com wrote: > >Great input, Ken. Thanks for your help. > >Best regards, > >Don > >> -- >> From:Ken Javor[SMTP:ken.ja...@emccompliance.com] >> Sent:Tuesday, September 18, 2001 11:33 AM >> To: umbdenst...@sensormatic.com; emc-p...@majordomo.ieee.org >> Subject: Re: 2 GHz Amplifiers >> >> Twenty years go microwave amps of 1 W or more power output were all TWTAs. >> Nowadays a 10 W amp or less from 1 - 2 GHz could be solid-state. I have >> no >> experience with those personally. Do you still have to illuminate that >> 1.5 >> m square above 1 GHz? Then you would need a very powerful amplifier like >> you use below 1 GHz, and that would likely be a TWTA.* Then the question >> becomes whose TWT and how good is the power supply and protection >> circuitry. >> If you are buying a TWTA from any of the vendors you listed, it might be >> worth checking this out, especially if they are private labeling another >> company's amps. At one time, not that long ago, NONE of these companies >> sold amps operating above 1 GHz. >> >> *There is no technical justification for illuminating a 1.5 m square in >> the >> microwave bands. The decision ought to be based on economics. If you can >> illuminate the entire quiet zone, then the test is more quickly >> accomplished. If you can only illuminate a 1 foot square, then you have >> to >> scan the entire set up and the test takes longer, but you get by with a >> less >> expensive more reliable amplifier... >> >> -- >> >From: umbdenst...@sensormatic.com >> >To: emc-p...@majordomo.ieee.org >> >Subject: 2 GHz Amplifiers >> >Date: Tue, Sep 18, 2001, 7:43 AM >> > >> >> > >> > Hello Friends, >> > >> > In searching for the best value for power amplifiers for the 2 GHz >> radiated >> > immunity limit. I have come across a few vendors that I am not >> personally >> > familiar with. I have used Amplifier Research and Schaffner/Chase >> products >> > at other frequencies and have been satisfied with the products' >> performance >> > and reliability. I have found additional vendors listed below and was >> > wondering if anyone had any experience with them (performance, >> reliability, >> > customer service, warranty, etc). >> > >> > AFI >> > Comtech PST >> > IFI >> > Kalmus >> > >> > >> > Comments appreciated. >> > >> > Best regards, >> > >> > Don Umbdenstock >> > Sensormatic >> > >> > --- >> > 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 > >F
RE: 2 GHz Amplifiers
Great input, Ken. Thanks for your help. Best regards, Don > -- > From: Ken Javor[SMTP:ken.ja...@emccompliance.com] > Sent: Tuesday, September 18, 2001 11:33 AM > To: umbdenst...@sensormatic.com; emc-p...@majordomo.ieee.org > Subject: Re: 2 GHz Amplifiers > > Twenty years go microwave amps of 1 W or more power output were all TWTAs. > Nowadays a 10 W amp or less from 1 - 2 GHz could be solid-state. I have > no > experience with those personally. Do you still have to illuminate that > 1.5 > m square above 1 GHz? Then you would need a very powerful amplifier like > you use below 1 GHz, and that would likely be a TWTA.* Then the question > becomes whose TWT and how good is the power supply and protection > circuitry. > If you are buying a TWTA from any of the vendors you listed, it might be > worth checking this out, especially if they are private labeling another > company's amps. At one time, not that long ago, NONE of these companies > sold amps operating above 1 GHz. > > *There is no technical justification for illuminating a 1.5 m square in > the > microwave bands. The decision ought to be based on economics. If you can > illuminate the entire quiet zone, then the test is more quickly > accomplished. If you can only illuminate a 1 foot square, then you have > to > scan the entire set up and the test takes longer, but you get by with a > less > expensive more reliable amplifier... > > -- > >From: umbdenst...@sensormatic.com > >To: emc-p...@majordomo.ieee.org > >Subject: 2 GHz Amplifiers > >Date: Tue, Sep 18, 2001, 7:43 AM > > > > > > > Hello Friends, > > > > In searching for the best value for power amplifiers for the 2 GHz > radiated > > immunity limit. I have come across a few vendors that I am not > personally > > familiar with. I have used Amplifier Research and Schaffner/Chase > products > > at other frequencies and have been satisfied with the products' > performance > > and reliability. I have found additional vendors listed below and was > > wondering if anyone had any experience with them (performance, > reliability, > > customer service, warranty, etc). > > > > AFI > > Comtech PST > > IFI > > Kalmus > > > > > > Comments appreciated. > > > > Best regards, > > > > Don Umbdenstock > > Sensormatic > > > > --- > > 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: 2 GHz Amplifiers
Twenty years go microwave amps of 1 W or more power output were all TWTAs. Nowadays a 10 W amp or less from 1 - 2 GHz could be solid-state. I have no experience with those personally. Do you still have to illuminate that 1.5 m square above 1 GHz? Then you would need a very powerful amplifier like you use below 1 GHz, and that would likely be a TWTA.* Then the question becomes whose TWT and how good is the power supply and protection circuitry. If you are buying a TWTA from any of the vendors you listed, it might be worth checking this out, especially if they are private labeling another company's amps. At one time, not that long ago, NONE of these companies sold amps operating above 1 GHz. *There is no technical justification for illuminating a 1.5 m square in the microwave bands. The decision ought to be based on economics. If you can illuminate the entire quiet zone, then the test is more quickly accomplished. If you can only illuminate a 1 foot square, then you have to scan the entire set up and the test takes longer, but you get by with a less expensive more reliable amplifier... -- >From: umbdenst...@sensormatic.com >To: emc-p...@majordomo.ieee.org >Subject: 2 GHz Amplifiers >Date: Tue, Sep 18, 2001, 7:43 AM > > > Hello Friends, > > In searching for the best value for power amplifiers for the 2 GHz radiated > immunity limit. I have come across a few vendors that I am not personally > familiar with. I have used Amplifier Research and Schaffner/Chase products > at other frequencies and have been satisfied with the products' performance > and reliability. I have found additional vendors listed below and was > wondering if anyone had any experience with them (performance, reliability, > customer service, warranty, etc). > > AFI > Comtech PST > IFI > Kalmus > > > Comments appreciated. > > Best regards, > > Don Umbdenstock > Sensormatic > > --- > 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.
