The "relief" is related to Pulse Repetition Frequency. 

Once the PRF is greater than 100 Hz => no relief, only aspirin will do.


Mike Violette
Washington Laboratories & American Certification Body
[email protected]
+1 240 401 1388



On Nov 27, 2012, at 6:44 PM, Derek Walton wrote:

> Sure this isn't power over Ethernet power supply?
> 
> Sent from my iPad
> 
> On Nov 27, 2012, at 14:55, Ken Javor <[email protected]> wrote:
> 
>> Performing troubleshoot testing to CISPR type radiated emissions 
>> requirements without a quasi-peak detector.  Seeing results of bus traffic 
>> on an Ethernet cable.  Squeezing down to zero-span mode and adjusting sweep 
>> speed, a roughly 500 us 50% duty cycle waveform is observed.
>> 
>> Is it accurate to expect no “relief” during a full qualification testing 
>> using a quasi-peak detector for this type of intermittent signal?
>> 
>> Thank you,
>>   
>> Ken Javor
>> Phone: (256) 650-5261
>> -
>> ----------------------------------------------------------------
>> 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: 
>> http://www.ieee-pses.org/emc-pstc.html
>> 
>> Attachments are not permitted but the IEEE PSES Online Communities site at 
>> http://product-compliance.oc.ieee.org/ can be used for graphics (in 
>> well-used formats), large files, etc.
>> 
>> Website: http://www.ieee-pses.org/
>> Instructions: http://listserv.ieee.org/request/user-guide.html
>> List rules: http://www.ieee-pses.org/listrules.html
>> 
>> For help, send mail to the list administrators:
>> Scott Douglas <[email protected]>
>> Mike Cantwell <[email protected]>
>> 
>> For policy questions, send mail to:
>> Jim Bacher <[email protected]>
>> David Heald <[email protected]>
>> 
> -
> ----------------------------------------------------------------
> 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: 
> http://www.ieee-pses.org/emc-pstc.html
> 
> Attachments are not permitted but the IEEE PSES Online Communities site at 
> http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used 
> formats), large files, etc.
> 
> Website: http://www.ieee-pses.org/
> Instructions: http://listserv.ieee.org/request/user-guide.html
> List rules: http://www.ieee-pses.org/listrules.html
> 
> For help, send mail to the list administrators:
> Scott Douglas <[email protected]>
> Mike Cantwell <[email protected]>
> 
> For policy questions, send mail to:
> Jim Bacher <[email protected]>
> David Heald <[email protected]>
> 


-
----------------------------------------------------------------
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:
http://www.ieee-pses.org/emc-pstc.html

Attachments are not permitted but the IEEE PSES Online Communities site at 
http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used 
formats), large files, etc.

Website:  http://www.ieee-pses.org/
Instructions:  http://listserv.ieee.org/request/user-guide.html
List rules: http://www.ieee-pses.org/listrules.html

For help, send mail to the list administrators:
Scott Douglas <[email protected]>
Mike Cantwell <[email protected]>

For policy questions, send mail to:
Jim Bacher:  <[email protected]>
David Heald: <[email protected]>

Reply via email to