Re: [PSES] Anteroom needed for testing?

customers' site, where I was asked to deposit the cell phone / pager before I could enter the chamber. Regards, Ravinder Ajmani Western Digital(r) 5601 Great Oaks Pkwy San Jose, CA 95119 ravinder.ajm...@wdc.com www.wdc.com<http://www.wdc.com> Always Do Right. This Will Gratify Some

[PSES] IT Products shipping to EV After March 2, 2017

for your help. Regards, Ravinder Ajmani Western Digital(r) 5601 Great Oaks Pkwy San Jose, CA 95119 ravinder.ajm...@wdc.com www.wdc.com<http://www.wdc.com> Always Do Right. This Will Gratify Some People and Astonish the Rest<http://lifehacker.com/always-do-right-this-will-gratify-so

Re: [PSES] ITE Kiosk Installed in the Airport Terminals in the US

Also a number of us would be without jobs. Regards, Ravinder Ajmani Western Digital® 5601 Great Oaks Pkwy San Jose, CA 95119 ravinder.ajm...@wdc.com www.wdc.com<http://www.wdc.com> Always Do Right. This Will Gratify Some People and Astonish the Rest<http://lifehacker.com/always

Re: [PSES] IEEE Elections and Constitution

After reading the Rebuttal, I too voted "No" on the proposal. Regards, Ravinder Ajmani HGST, a Western Digital Corporation brand ravinder.ajm...@hgst.com 5601 Great Oaks Pkwy San Jose, CA 95119 www.hgst.com From: Bill Lawrence [mailto:wlawr...@capecod.net] Sent: Wednesday, September

Re: [PSES] EMC Compliance for various countries

, Ravinder Ajmani From: Rodney Davis [mailto:rodneydavis...@gmail.com] Sent: Saturday, July 2, 2016 4:04 PM To: Ravinder Ajmani <ravinder.ajm...@hgst.com> Cc: EMC-PSTC@listserv.ieee.org Subject: Re: [PSES] EMC Compliance for various countries It would depend on the type / category of the equ

[PSES] EMC Compliance for various countries

your opinions on this. Thanks a lot. Regards, Ravinder Ajmani HGST, a Western Digital Corporation brand ravinder.ajm...@hgst.com Western Digital Corporation (and its subsidiaries) E-mail Confidentiality Notice & Disclaimer: This e-mail and any files transmitted with it may con

Re: [PSES] RF Common Mode Immunity Test Question

requirements, but now has fallen behind. My personal view. Regards Ravinder Ajmani HGST, a Western Digital company ravinder.ajm...@hgst.com 5601 Great Oaks Parkway San Jose, CA 95119 www.hgst.com -Original Message- From: Gary McInturff [mailto:gary.mcintu...@esterline.com] Sent: Tuesday

Re: [PSES] IEEE Electromagnetic Compatibility magazine

to Xplore. I believe unless you are Xplore subscriber, you may not be able to view or download the full articles. Regards Ravinder Ajmani HGST, a Western Digital company ravinder.ajm...@hgst.com 5601 Great Oaks Parkway San Jose, CA 95119 www.hgst.com -Original Message- From: John

Re: [PSES] EMC requirements for Korea

this helps. Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great Oaks Pkwy San Jose, CA 95119-1003 ravinder.ajm...@hgst.commailto:ravinder.ajm...@hgst.com From: Robert Dunkerley [mailto:robert.dunker...@snellgroup.com] Sent: Thursday, August 20, 2015 8:19 AM To: EMC-PSTC

Re: [PSES] PCB via holes - radiated emission

, and improve the layout if needed. Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great Oaks Pkwy San Jose, CA 95119-1003 ravinder.ajm...@hgst.commailto:ravinder.ajm...@hgst.com From: Amund Westin [mailto:am...@westin-emission.no] Sent: Wednesday, August 19, 2015 2:55 AM To: EMC-PSTC

Re: [PSES] Quasi Peak - Length of Measurement Time for Final Spot Measurement?

In one of my previous lives when I was engaged in EMI testing, QP testing was done manually using the HP Quasi Peak Adapter. I remember using a time period of 20 seconds for QP measurements, which was accepted by FCC. Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great Oaks Pkwy

Re: [PSES] USB and radiated emission issues

Hi Bill, What you say may be true. I often use memory sticks to terminate unused USB ports during testing, and on several occasions I have come across high emissions caused by the sticks. Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great Oaks Pkwy San Jose, CA 95119-1003

[PSES] EMC Certification carried out with Non-ROHS Compliant ASIC

we start volume shipment. I would like to know if a recertification will be needed with the ROHS compliant ASIC, or can we use the same certification. There will be no other change in the ASIC or PCB. Thank you for your help. Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great

Re: [PSES] EMC Certification carried out with Non-ROHS Compliant ASIC

Thanks to all. My understanding is that only difference between Non-ROHS and ROHS compliant parts is the package material. Regards Ravinder Ajmani Principal HW Engineer, Signal Integrity/EMI HGST, a Western Digital company 5601 Great Oaks Pkwy San Jose, CA 95119-1003 ravinder.ajm

Re: [PSES] FCC EMI Test and Ferrites on Cables - a conundrum

, as they were double shielded with proper shield termination. If ferrite clamps were required to pass then the report would state it, and customer would be advised to provide the ferrite clamps with the product. Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great Oaks Pkwy San Jose, CA

[PSES] DesignCon 2015 Track 12 - Achieve Electromagnetic Compatibility and Mitigate Interference

• Safety and compliance of power networks Best Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great Oaks Pkwy San Jose, CA 95119-1003 ravinder.ajm...@hgst.com - This message is from the IEEE Product Safety Engineering

Re: [PSES] Higher EMI from ASIC built with new process

Hi Gert, Thank you very much. your suggestion is very useful. I will definitely try it. Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great Oaks Pkwy San Jose, CA 95119-1003 ravinder.ajm...@hgst.com ce-test, qualified testing bv - Gert Gremmen g.grem...@cetest.nl 03/25

Re: [PSES] Higher EMI from ASIC built with new process

expect from the signal. Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great Oaks Pkwy San Jose, CA 95119-1003 ravinder.ajm...@hgst.com Derek Walton lfresea...@aol.com 03/24/2014 06:08 AM Please respond to Derek Walton lfresea...@aol.com To EMC-PSTC@LISTSERV.IEEE.ORG cc Subject Re

Re: [PSES] Higher EMI from ASIC built with new process

Hi Marko, Thanks for your suggestions. Core voltages are identical SerDes voltages are also same I believe new chip has more transistors, but how does that affect EMI on the serial link. Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great Oaks Pkwy San Jose, CA 95119-1003

Re: [PSES] Higher EMI from ASIC built with new process

Hi Cortland, What you say makes sense to me. Thanks for your feedback. I need to take another look at the decoupling. Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great Oaks Pkwy San Jose, CA 95119-1003 ravinder.ajm...@hgst.com CR k...@earthlink.net 03/22/2014 11:19 PM

Re: [PSES] Higher EMI from ASIC built with new process

chip will result in faster rise time, but measurements are being made at the end of the 2 long PCB trace, using SMA connectors. Regards Ravinder Ajmani HGST, a Western Digital company 5601 Great Oaks Pkwy San Jose, CA 95119-1003 ravinder.ajm...@hgst.com Ken Wyatt k...@emc-seminars.com 03/22/2014

[PSES] Cost of a 3m chamber

Hi Experts, My company is exploring setting up a 3m chamber for in-house Emissions and Immunity testing. I would like to know a ballpark estimate of setting up the chamber as well as its expected annual expenditure. Thanks for your help. Regards Ravinder Ajmani HGST, a Western Digital

[PSES] Labelling Requirement for ITE Equipment under Industry Canada ICE-003 Issue 5

such as SATA/SAS Disk Drives. I will appreciate your guidance on this subject. Thanks. Regards Ravinder Ajmani HGST, a Western Digital Company 5601 Great Oaks Pkwy San Jose, CA 95119-1003 ravinder.ajm...@hgst.com - This message is from

[PSES] Canada ICES-003 Issue 5

is applicable to all the products, or only to the products released after Aug. 31, 2013. I will appreciate if someone can clarify this for me. Thanks. Regards Ravinder Ajmani HGST, a Western Digital company ravinder.ajm...@hgst.com

Re: [PSES] Canada ICES-003 Issue 5

Hi Brian, Thanks. I somehow missed the footnote. Regards Ravinder Ajmani HGST, a Western Digital company ravinder.ajm...@hgst.com Brian Oconnell oconne...@tamuracorp.com Sent by: emc-p...@ieee.org 08/01/2013 10:23 AM Please respond to oconne...@tamuracorp.com To emc-p...@ieee.org

[PSES] Compliance requirement for PC Add-on cards

customers. Thanks. Regards Ravinder Ajmani HGST, a Western Digital company Phone: 408-717-7956 - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your

[PSES] Looking for Gaussmeter for measurements up to 250 kHz

Hello Experts, I am looking for a Gaussmeter to measure DC and AC magnetic fields up to 250 kHz. I have tried searching on line but am unable to find one which covers such high frequency. I will appreciate any help in finding the source for Gaussmeter. Thanks. Regards Ravinder Ajmani

Re: [PSES] Looking for Gaussmeter for measurements up to 250 kHz

Hi Tom, Thanks. I checked FW Bell web site and their models 8010 and 8030 cover only up to 50 kHz. I will call them to find out if they have any model which supports 250 kHz range. Regards Ravinder Ajmani HGST, a Western Digital company ravinder.ajm...@hgst.com Thomas Cokenias t

Re: [PSES] Looking for Gaussmeter for measurements up to 250 kHz

to my query. Regards Ravinder Ajmani HGST, a Western Digital company ravinder.ajm...@hgst.com John Woodgate j...@jmwa.demon.co.uk Sent by: emc-p...@ieee.org 01/04/2013 09:42 AM To EMC-PSTC@LISTSERV.IEEE.ORG cc Subject Re: Looking for Gaussmeter for measurements up to 250 kHz

Re: [PSES] OATS vs FAR Radiated Emissions Limits

many would fail during testing. In fact I remember testing one particular PC which failed Class A limits by 10 dBs. Regards Ravinder Ajmani HGST, a Western Digital company ravinder.ajm...@hgst.com Pettit, Ghery ghery.pet...@intel.com Sent by: emc-p...@ieee.org 10/17/2012 09:54 AM To Ken

Re: [PSES] OATS vs FAR Radiated Emissions Limits

well with the 10m semi-anechoic chamber. Regards Ravinder Ajmani HGST, a Western Digital company ravinder.ajm...@hgst.com ralph.mcdiar...@schneider-electric.com Sent by: emc-p...@ieee.org 10/16/2012 10:25 AM To EMC-PSTC@LISTSERV.IEEE.ORG cc Subject Re: [PSES] OATS vs FAR Radiated

Re: ESD failure

Hi, It has been almost a week since I have been trying various techniques to fix the ESD problem in my PCB. I am particularly thankful of the suggestion by John Barnes to place a copper tape on the insulator over HCP and then move the EUT over the tape. John, I improvised it further by

ESD failure

Hi ESD Gurus, I am having problem with a controller card which is failing contact ESD discharge at Negative 5 kV and below, but passes Positive contact discharge upto 8 kV, and air discharge of either polarity upto 15 kV. The card is mounted on an open metal chassis, and has DC input of 5V

Re: red tape

Red Tape is a very common term used for describing the bureaucracy of Government of India (perhaps a legacy from British). Delays and inaction by Indian bureaucracy have often been blamed to the Red Tape in the government offices (which signifies a cloth ribbon tied around a file folder to

Re: Emissions quick test

Lisa, Com Power sells complete pre-compliance system with an inexpensive spectrum analyzer, pre-amplifier, and a set of three probes. Regards, Ravinder PCB Development and Design Department IBM Corporation Email: ajm...@us.ibm.com

Re: suggestion for 100W audio amp

Hi Susan, I am not familiar with DO-160D or 461E requirements. However, I am using a 500W audio amp (POWERTRON Model 500A Power Amplifier) from Industrial Test Equipment Co., Inc., Port Washington, NY 11050 (Phone: 516-883-1700), with my Helmholtz coil system for frequencies up to 200 kHz.

RE: IEEE Conference Proceedings (2000 - 2001)

Mat, I had received the 2001 IEEE Conference Proceedings CD in the original shrink wrap, which was post marked BELGIQUE. I do not know the name of the company that mailed it to me. Regards, Ravinder PCB Development and Design Department IBM Corporation Email: ajm...@us.ibm.com

Re: Safety of microwave ovens

I wish to express my sincere thanks to all who provided me information on the microwave oven safety. To summarize, the microwave ovens have a good RF seal to protect the user from leakage. According to the FDA web site on microwave safety, even at a distance of 2 from the microwave oven, the

Re: Pre-amps

Joe, HP (Agilent) make good Pre-amps for different frequency ranges. If you are looking for an economical solution then you may try Com Power Corp. at (949) 587-9800. Regards, Ravinder PCB Development and Design Department IBM Corporation Email: ajm...@us.ibm.com

Re: Component ESD Immunity Testing

I have been asked on several occasions to test some particular IC on the card, whenever there have been instances of IC failures during product manufacturing/testing. Most ICs are built to withstand an ESD event of 2 kV, and I have found this to be true in my tests. If IC happens to be OK then

UL requirement for driver

Hi, I am basically an EMC guy and do not know much about UL requirements. I would like to know if there are any UL requirements for a driver with output voltage swing of +/- 30V peak-to-peak. The RMS voltage will be much smaller, and the power will be less than 0.5 watt. The driver is to be

Re: virus targeting list?

George, I remember receiving couple of messages in the format described by you, with an .exe file attached. In both cases, the name of the sender was garbled. As a rule, I simply delete such messages from unknown sources which come with .exe attachments. Regards, Ravinder PCB Development and

Re: 120V appliance on 240V supply

I would like to express my thanks to all of you who provided me with valuable information on this topic. I now have a good understanding of the possible risks associated with such an endeavor. Regards, Ravinder Email: ajm...@us.ibm.com

120V appliance on 240V supply

Hi, I am interested in knowing if a 120V, 60Hz microwave oven can be safely used on a 240V, 50Hz mains supply with a step-down transformer. Regards, Ravinder Email: ajm...@us.ibm.com *** Always do right. This will gratify

RE: AC Power Primer?

Can someone explain to me how reducing the voltage will lower the power consumption, if the load is kept constant. On the contrary, this should cause an increase in consumption because higher current means increased copper losses in the wiring. This is the reason why power distribution is done

RE: ESD protection

I wish to thank all of you who responded to my query. I now have several ideas for trying in the current design, as well as for the layout change. Regards, Ravinder PCB Development and Design Department IBM Corporation Email: ajm...@us.ibm.com

Re: Near Field Versus Far Field

Several excellent ideas have been put forward on this phenomenon. Here is my $.02 worth on the subject. I have often been able to reduce the far-field emissions, based on the reduction in near-field emissions. The important thing is to co-relate the far-field and near-field emissions, by