RE: Sound measurement

[Luttrell, Lyle]

James,
What is the product that you are interested in?  There are quite a few
standards that deal with product noise measurements, not all use the
same measurement distance.  Many use sound power, which is independent
of distance.
Lyle Luttrell
Regulatory /Reliability Engineer
Breece Hill Technologies
ph 303-664-8286 fax 303-449-1027
http://www.breecehill.com
lluttr...@ieee.org


> -Original Message-
> From: GOEDDERZ, JIM [SMTP:goedd...@sensormatic.com]
> Sent: Thursday, April 08, 1999 11:20 AM
> To:   'PSnetPost'
> Subject:  Sound measurement
> 
> Hello group,
> 
> I have been able to find limits for noise exposure, but not
> measurement
> methods. Can anyone give the measurement methods, or a reference to a
> method. Specifically, I'm looking for something like the distance from
> the
> microphone, to the noise source.
> 
> Thank you
> 
> James Goedderz
> Sensormatic
> 
> -
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RE: Sound measurement

[Flinders, Randall]

James,

John Downs of dB Sound Labs has always been able to answer those types of 
questions for me.  You might try giving him a call.  His contact info is 
shown below...

John Downs
Sr. Staff Engineer
(760) 940-4216
Fax: (760) 940-6321
412 Hillway Drive
Vista, Ca. 92084-6342

--
Sincerely,

Randall T. Flinders
EMC Engineer
Emulex Network Systems
V: (714) 513-8012
F: (714) 513-8265
randall.flind...@emulex.com
__   __
__\ /__
__/ \__
E  M  U  L  E  X



--
From:   GOEDDERZ, JIM
Sent:   Thursday, April 08, 1999 10:19 AM
To: 'PSnetPost'
Subject:Sound measurement

Hello group,

I have been able to find limits for noise exposure, but not measurement
methods. Can anyone give the measurement methods, or a reference to a
method. Specifically, I'm looking for something like the distance from the
microphone, to the noise source.

Thank you

James Goedderz
Sensormatic

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Re: IEC 61508

[Bruce Hunter]

On Thu, 8 Apr 1999, Florence Sandy-ESF003 wrote:

> Does anyone know of upcoming training seminars on EN 61508
> 

I'm not aware of any specific training on IEC61508. This standard,
Functional Safety: Safety Related Systems, is usually covered by courses
on Safety Critical Software. The University of Queensland is one
organisation that conducts these in Australia.
(http://svrc.it.uq.edu.au//Services/training.htm)

I'm sure there must be similar courses in the US. One word of warning is
that only parts 1, 3, 4 and 5 have been published; parts 2, 6 and 7 are
expected to be formalised later this year. The Standards Australia
IT/15-15 committee is currently working on a local guideline for the
application if IEC61508.

I hope this helps...

Bruce HunterQA & Engineering Manager  email: bru...@thomson-csf.com.au
Thomson-CSF Pacific Phone: +61 2 9981 0630  Fax:   +61 2 9971 1759
176 South Creek Road, Dee Why, NSW 2099, Australia  www.thomson-csf.com.au



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Re: Sound measurement

[ron_pickard]

 James,
 
 I believe  the standard you want is ISO 7779 "Measurement of airborne noise 
 emitted by computer and business equipment". In a past life I had to use this 
 standard and in it are specific measurement criteria. Some criteria from 
memory 
 are number and placement of microphones, construction of measurment area, etc.
 
 I hope this helps.
 
 Best regards,
 Ron Pickard
 ron_pick...@hypercom.com


__ Reply Separator _
Subject: Sound measurement 
Author:  "GOEDDERZ  JIM"  at INTERNET
List-Post: emc-pstc@listserv.ieee.org
Date:4/8/99 1:19 PM


Hello group,
 
I have been able to find limits for noise exposure, but not measurement 
methods. Can anyone give the measurement methods, or a reference to a 
method. Specifically, I'm looking for something like the distance from the 
microphone, to the noise source.
 
Thank you
 
James Goedderz
Sensormatic
 
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roger.volgst...@compaq.com (the list administrators).
 
 


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RE: Enclosure ratings IP vs. NEMA

[Werlwas, Mark]

I don't think that you can easily convert IP to NEMA codes. However, there
is a nice little chart which converts NEMA to IP. You can locate it at
http://www.ul.com/hazloc/ref/conversion.htm

The standard which defines the NEMA codes is NEMA-250,1997.

Mark Werlwas
Product Safety Engineer
mark.werl...@lamrc.com

 
| -Original Message-
| From: Russell, Ray [mailto:ray_russ...@gastmfg.com]
| Sent: Thursday, April 08, 1999 6:39 AM
| To: 'IEEE PSTC'
| Subject: Enclosure ratings IP vs NEMA
| 
| 
| Greetings,
| 
| I hope everyone had a happy holiday. 
| 
| I am looking for a comparison of IEC 60529 IP ratings for 
| enclosures to the
| NEMA equivalents. 
| 
|-clip-

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RE: Cost associated with Australian C-tick

[John Juhasz]

I would like to add an item to this.

If the US test house that you used for CE EMC testing is accredited by the
ACA (as the test house I use is), they can also issue an 'Australian Test
House' Certificate based on the EN55022 testing, attesting to the fact that
the product also meets AS/NZS 3548.

The ACA doesn't need to see the test report in the compliance folder
provided an
Australian Test House certificate is in there (they prefer the certificate,
but I send both to my Australian based agent anyway).

John A. Juhasz
Product Qualification &
Compliance Engr.

Fiber Options, Inc.
80 Orville Dr. Suite 102
Bohemia, NY 11716 USA

Tel: 516-567-8320 ext. 24
Fax: 516-567-8322 

-Original Message-
From: rehel...@mmm.com [mailto:rehel...@mmm.com]
Sent: Thursday, April 08, 1999 9:48 AM
To: Barry Esmore
Cc: richard_c...@irisinc.scitex.com; emc-p...@majordomo.ieee.org
Subject: Re: Cost associated with Australian C-tick




What Barry said is true except the test facility that did the testing must
have an accreditation recognized by Australia.in the U.S., this is
either A2LA or NVLAP.

===
===




"Barry Esmore"  on 04/08/99 12:53:19 AM

Please respond to "Barry Esmore" 


To:   "Richard Cass" 
  "EMC-PSTC (E-mail)" 
cc:(bcc: Robert E. Heller/US-Corporate/3M/US)
Subject:  Re: Cost associated with Australian C-tick




Hello Richard,

Answers to your questions:
-   The "APPROXIMATE" cost to register with the ACA (no longer SMA) is
$zero.
-   If you have reports to EN55022 it is only a paper work exercise.
-   You will need an Australian company to sign the DOC and hold the
compliance folder.

Hope this helps.


Regards

Barry Esmore
AUS-TICK (Australian Approval Consultants)

Phone:+ 61 3 9886 1345
Fax: + 61 3 9884 7272
Email:bar...@melbpc.org.au

--
> From: Richard Cass 
> To: EMC-PSTC (E-mail) 
> Subject: Cost associated with Australian C-tick
> Date: Thursday, 8 April 1999 6:48
>
> Can anyone tell me the APPROXIMATE cost (just need the right number of
> zeros) if any, in US Dollars, for obtaining the C-Tick mark under the
> auspices of their EMC Framework?  This would include one time or
recurring
> costs.  This would be for ITE equipment.
> The relevant Australian emissions standard is apparently AS/NZS 3548. At
the
> present time all of our products are verified for European Union
conformity
> to the fully equivalent EN55022:1994+A1:1995+A2:1997.  So, in theory, it
> should just be a paper work exercise.  I am just trying to find out what
the
> costs are associated with that exercise.  Also, can we as a US based
> manufacturer submit our application directly to SMA or do we need an
> intermediary or an in country representative?
> If anyone in the Australian SMA is on this distribution, I'd be ecstatic
to
> hear from you
> TIA.
> Regards,
> Richard Cass
> Iris Graphics, Inc.
> Bedford MA 01730
> USA
> 781 2760-5424


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Need Ferrite bead Spice models

[Harry Dellamano]

  Where can I get ferrite bead SPICE models in the 1Mhz to 100Mhz range. I 
desire something simple that can simulate DC current filters with a SPICE 
transient response. If it could simulate both resistance and reactance as a 
function of frequency at varying DC current levels that would be sweet. I am 
open to any ideas.

thanks
Harry Dellamano
consultant
T D Systems

Sound measurement

[GOEDDERZ, JIM]

Hello group,

I have been able to find limits for noise exposure, but not measurement
methods. Can anyone give the measurement methods, or a reference to a
method. Specifically, I'm looking for something like the distance from the
microphone, to the noise source.

Thank you

James Goedderz
Sensormatic

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REMINDER - O.C. EMC Society Meeting Today!

[Flinders, Randall]

There are still plenty of seats left for the April meeting of the Orange 
County Chapter of the IEEE EMC Society.  Everyone is welcome to join us!

Details below.


Greetings EMC Professionals!

The Orange County Chapter of the IEEE EMC Society has invited Charlie M. 
Bayhi to speak at our April meeting!  We are very pleased that Charlie is 
available to share his presentation, titled "Designing for Safety for the 
Year 2000 and Beyond" with out group, and sincerely hope that you are able 
to join us!

About the Presentation:

Although not all EMC Engineers are directly exposed to Product Safety 
Compliance on a day-to-day basis, the EMC and Product Safety fields are so 
closely related that any Product Safety Knowledge comes in handy for EMC 
Engineers.  Charlie's presentation will discuss mandatory Safety 
certifications, the European Union and CE Marks, the North American Bi 
National Standard for ITE Equipment (another Y2K problem).  Principles of 
Safety will be discussed as they relate specifically to EMC.  In addition, 
he will discuss the CB scheme, and future and present requirements for 
other countries for ITE, Telecom, Medical, and Test/Measurement Equipment.

About the Speaker: (Charles M. Bayhi, P.E.)

Charlie Bayhi is a Product Safety Forensic and Consulting Engineer and has 
been involved in Product Safety on a worldwide basis for more  than 30 
years.
He is President and Principal Consultant of CPSM Corporation, and provides 
product safety design guidance, development of Product Safety Programs, 
 safety certification of products,  forensic analysis of accidents and 
fires,  and technical advisory for development of products and safety 
standards.
Charlie is a Registered Professional Safety Engineer in the state of 
California, and a Subject Matter and a Technical Expert for the Board.  He 
is a member of Underwriters Laboratories Industry Advisory Council, 
Forensic Consultants Association Orange County, Association of Professional 
Consultants, Member of the Institute of Electrical and Electronics 
Engineers (IEEE), Chairman of the Southern California Chapter, Technical 
Committee on Product Safety, of the IEEE, and a member of the IEEE 
Consultants Network. In addition to publishing numerous articles, Charlie 
has been a guest speaker at the Power Electronics Conference, and has made 
numerous Product Safety presentations, which include Fortune 500 companies 
such as AT&T Corporation, NCR Corporation, Canon Computers, Tektronix 
Corporation and Zero Corporation.

When:

Thursday, April 8, 1999
6:00 PM - Social Hour Begins (Non-Alcoholic Beverages Served)
6:30 PM - Dinner Served
7:00 PM - Presentation Begins

Where:

Emulex Corporation
3535 Harbor Blvd
Costa Mesa, Ca. 92626
Entrance between Emulex and QLogic Buildings

Cost:

$10.00 - IEEE Members and Students w/valid student ID.
$15.00 - Non-IEEE Members

RSVP:

Please RSVP to Randy Flinders
r.flind...@ieee.org
(714) 513-8012

Please contact Randy Flinders if you have any questions or need directions 
to the meeting.  See you there!
--
Sincerely,

Randall T. Flinders
Chairman
Orange County Chapter
IEEE EMC Society
V: (714) 513-8012
F: (714) 513-8265
r.flind...@ieee.org

<>

RE: Enclosure ratings IP vs NEMA

[Henning, Eric]

-Original Message-
Russell, Ray wrote:

>I am looking for a comparison of IEC 60529 IP ratings for enclosures to the
>NEMA equivalents. 

Ray,
  If you have a copy of NEMA 250 (which defines NEMA enclosures), I believe
there is an appendix in the back which compares the 529 ratings to NEMA
ratings.

eric.henn...@bailey.com

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IEC 61000-4-14

[reheller]

Is IEC 61000-4-14 (Test and Measurement Techniques - Voltage fluctuation
immunity test) a basic standard or a testing guideline?

Has anyone heard of any upcoming requirements for harmonic immunity or
voltage fluctuation immunity?

Thanks,

Bob Heller



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Re: Enclosure ratings IP vs NEMA

[TinBear]

Ray,

I believe that UL's website comparison table, titled "Comparison of "NEMA" 
Type and "IP" Code Designations", may be just what you are looking for: 
http://www.ul.com/hazloc/ref/conversion.htm";>Division/Zone 
Classifications Comparisons
 

In a message dated 4/8/99 6:33:25 AM Pacific Daylight Time, 
ray_russ...@gastmfg.com writes:

<< Greetings,
 
 I hope everyone had a happy holiday. 
 
 I am looking for a comparison of IEC 60529 IP ratings for enclosures to the
 NEMA equivalents. 
 
 Thank you for your assistance,
  
 
 Ray Russell
 Regulatory Compliance Engineer
 
 
 ray_russ...@gastmfg.com >>

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RE: Enclosure ratings IP vs NEMA

[Kevin Robinson]

NEMA 250 , appendix A has a chart that makes the
comparison between NEMA and IP ratings, although it can only be used to
convert NEMA type numbers to IEC Classifications.

Hope this helps. 
Kevin Robinson
MET Laboratories
Product Safety Department
Project Engineer/QA Manager
Ph: (410) 354-3300 x361
Fx: (410) 354-3313
E-Mail: krobin...@metlabs.com


-Original Message-
From:   Russell, Ray
[SMTP:ray_russ...@gastmfg.com]
Sent:   Thursday, April 08, 1999 9:39 AM
To: 'IEEE PSTC'
Subject:Enclosure ratings IP vs
NEMA

Greetings,

I hope everyone had a happy holiday. 

I am looking for a comparison of IEC 60529 IP
ratings for enclosures to the
NEMA equivalents. 

Thank you for your assistance,
 

Ray Russell
Regulatory Compliance Engineer


ray_russ...@gastmfg.com

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Re: Cost associated with Australian C-tick

[reheller]

What Barry said is true except the test facility that did the testing must
have an accreditation recognized by Australia.in the U.S., this is
either A2LA or NVLAP.

===
===




"Barry Esmore"  on 04/08/99 12:53:19 AM

Please respond to "Barry Esmore" 


To:   "Richard Cass" 
  "EMC-PSTC (E-mail)" 
cc:(bcc: Robert E. Heller/US-Corporate/3M/US)
Subject:  Re: Cost associated with Australian C-tick




Hello Richard,

Answers to your questions:
-   The "APPROXIMATE" cost to register with the ACA (no longer SMA) is
$zero.
-   If you have reports to EN55022 it is only a paper work exercise.
-   You will need an Australian company to sign the DOC and hold the
compliance folder.

Hope this helps.


Regards

Barry Esmore
AUS-TICK (Australian Approval Consultants)

Phone:+ 61 3 9886 1345
Fax: + 61 3 9884 7272
Email:bar...@melbpc.org.au

--
> From: Richard Cass 
> To: EMC-PSTC (E-mail) 
> Subject: Cost associated with Australian C-tick
> Date: Thursday, 8 April 1999 6:48
>
> Can anyone tell me the APPROXIMATE cost (just need the right number of
> zeros) if any, in US Dollars, for obtaining the C-Tick mark under the
> auspices of their EMC Framework?  This would include one time or
recurring
> costs.  This would be for ITE equipment.
> The relevant Australian emissions standard is apparently AS/NZS 3548. At
the
> present time all of our products are verified for European Union
conformity
> to the fully equivalent EN55022:1994+A1:1995+A2:1997.  So, in theory, it
> should just be a paper work exercise.  I am just trying to find out what
the
> costs are associated with that exercise.  Also, can we as a US based
> manufacturer submit our application directly to SMA or do we need an
> intermediary or an in country representative?
> If anyone in the Australian SMA is on this distribution, I'd be ecstatic
to
> hear from you
> TIA.
> Regards,
> Richard Cass
> Iris Graphics, Inc.
> Bedford MA 01730
> USA
> 781 2760-5424


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IEC 61508

[Florence Sandy-ESF003]

Does anyone know of upcoming training seminars on EN 61508

Regards, 
Sandy 

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Enclosure ratings IP vs NEMA

[Russell, Ray]

Greetings,

I hope everyone had a happy holiday. 

I am looking for a comparison of IEC 60529 IP ratings for enclosures to the
NEMA equivalents. 

Thank you for your assistance,
 

Ray Russell
Regulatory Compliance Engineer


ray_russ...@gastmfg.com

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RE: Cost associated with Australian C-tick

[Sparacino,George]

Greetings Rich,

C-Tick costs only your time spent in gathering up your EN55022 report(s).
There is no fee.  You do need an Australian Rep of some sort to do the
filing for you...

If you need any other information regarding Australian approvals send an
email to Kevin Richardson.  He is very responsive and can answer any of your
questions..

Kevin Richardson
 Stanimore Pty Limited (Australia)   
 "Specialists in Technology Requirements and Compliance" 
 Ph: 02-43-29-4070   Fax: 02-43-28-5639  Int'l: +61-2-43-2x-
 Email:  k...@compuserve.com 
 k...@technologist.com (Internet) or 100356,374 (Compuserve) 


Hope this helps.
George

> -Original Message-
> From: Richard Cass [SMTP:richard_c...@irisinc.scitex.com]
> Sent: Wednesday, April 07, 1999 4:48 PM
> To:   EMC-PSTC (E-mail)
> Subject:  Cost associated with Australian C-tick
> 
> Can anyone tell me the APPROXIMATE cost (just need the right number of
> zeros) if any, in US Dollars, for obtaining the C-Tick mark under the
> auspices of their EMC Framework?  This would include one time or recurring
> costs.  This would be for ITE equipment.  
> The relevant Australian emissions standard is apparently AS/NZS 3548. At
> the
> present time all of our products are verified for European Union
> conformity
> to the fully equivalent EN55022:1994+A1:1995+A2:1997.  So, in theory, it
> should just be a paper work exercise.  I am just trying to find out what
> the
> costs are associated with that exercise.  Also, can we as a US based
> manufacturer submit our application directly to SMA or do we need an
> intermediary or an in country representative?
> If anyone in the Australian SMA is on this distribution, I'd be ecstatic
> to
> hear from you
> TIA.
> Regards,
> Richard Cass
> Iris Graphics, Inc.
> Bedford MA 01730
> USA
> 781 2760-5424
> 
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RE: Cost associated with Australian C-tick

[WOODS, RICHARD]

Richard, there should be only a one time cost, if any, and that involves the
application to use the c-tick mark. Only one application is required for all
of your ITE. That application must be submitted by a person located in
Australia, and that person may be an employee or an empowered
representative. Testing for ITE may be performed by any laboratory in any
country; however, the government has the right to reject test data that is
not from a certified lab. The test data does not need to be submitted unless
it is requested.

My company is currently using our CE test data that we have taken ourselves
and we have had no problems. If you are using distributors, be prepared to
supply them with the information. We have had several requests from our
distributors.

Visit this web site to obtain more information: http://www.sma.gov.au/
 


--
From:  Richard Cass [SMTP:richard_c...@irisinc.scitex.com]
Sent:  Wednesday, April 07, 1999 4:48 PM
To:  EMC-PSTC (E-mail)
Subject:  Cost associated with Australian C-tick

Can anyone tell me the APPROXIMATE cost (just need the right number
of
zeros) if any, in US Dollars, for obtaining the C-Tick mark under
the
auspices of their EMC Framework?  This would include one time or
recurring
costs.  This would be for ITE equipment.  
The relevant Australian emissions standard is apparently AS/NZS
3548. At the
present time all of our products are verified for European Union
conformity
to the fully equivalent EN55022:1994+A1:1995+A2:1997.  So, in
theory, it
should just be a paper work exercise.  I am just trying to find out
what the
costs are associated with that exercise.  Also, can we as a US based
manufacturer submit our application directly to SMA or do we need an
intermediary or an in country representative?
If anyone in the Australian SMA is on this distribution, I'd be
ecstatic to
hear from you
TIA.
Regards,
Richard Cass
Iris Graphics, Inc.
Bedford MA 01730
USA
781 2760-5424

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RE: ESD-Pink Poly Bags

[Raymond . Li]

Hi folks,

What about the blue poly bags which used to contain the electronic
components?  Is it the same type of pink poly bag?

Regards,

Raymond LI

==





"Lacey,Scott"  on 07/04/99 09:10:28 p

Please respond to "Lacey,Scott" 

To:   John Juhasz 
cc:   emc-p...@ieee.org (bcc: Raymond Li/DixonsNotes)

Subject:  RE: ESD-Pink Poly Bags




John,
You are correct. The pink bags have been treated to be hygroscopic, so that
they will retain some moisture. The pink color is a dye used to identify
the
treated bags.The main advantage is that the bags do not generated static
when the board is withdrawn from inside. You should be aware, however, that
several years back some vendors were selling pink bags without the
anti-static treatment. Some of these may still be around.

For actual protection the bag must act as a Faraday cage. Thus the foil or
metallized lining. The older (black) carbon loaded bags do provide some
limited protection.

Scott
> -Original Message-
> From:   John Juhasz [SMTP:jjuh...@fiberoptions.com]
> Sent:   Tuesday, April 06, 1999 11:39 AM
> To: 'emc-p...@ieee.org'
> Subject: ESD-Pink Poly Bags
>
> I am having a running debate with regards to the ESD protection
properties
> of those 'pink poly bags' for packaging electronic products.
>
> It is my understanding that these 'pink poly bags' DO NOT protect the
> printed circuits FROM ESD, but merely prevent the generation of static.
If
> the requirement is to protect the printed circuits from an ESD event, the
> boards should be packaged in the metallized bags.
>
> Can anyone clarify/confirm this??
>
> John A. Juhasz
> Product Qualification &
> Compliance Engr.
>
> Fiber Options, Inc.
> 80 Orville Dr. Suite 102
> Bohemia, NY 11716 USA
>
> Tel: 516-567-8320 ext. 24
> Fax: 516-567-8322
>
>
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Re: Cost associated with Australian C-tick

[Barry Esmore]

Hello Richard,

Answers to your questions:
-   The "APPROXIMATE" cost to register with the ACA (no longer SMA) is
$zero.
-   If you have reports to EN55022 it is only a paper work exercise.
-   You will need an Australian company to sign the DOC and hold the
compliance folder.

Hope this helps.


Regards

Barry Esmore
AUS-TICK (Australian Approval Consultants)

Phone:  + 61 3 9886 1345
Fax:+ 61 3 9884 7272
Email:  bar...@melbpc.org.au

--
> From: Richard Cass 
> To: EMC-PSTC (E-mail) 
> Subject: Cost associated with Australian C-tick
> Date: Thursday, 8 April 1999 6:48
> 
> Can anyone tell me the APPROXIMATE cost (just need the right number of
> zeros) if any, in US Dollars, for obtaining the C-Tick mark under the
> auspices of their EMC Framework?  This would include one time or
recurring
> costs.  This would be for ITE equipment.  
> The relevant Australian emissions standard is apparently AS/NZS 3548. At
the
> present time all of our products are verified for European Union
conformity
> to the fully equivalent EN55022:1994+A1:1995+A2:1997.  So, in theory, it
> should just be a paper work exercise.  I am just trying to find out what
the
> costs are associated with that exercise.  Also, can we as a US based
> manufacturer submit our application directly to SMA or do we need an
> intermediary or an in country representative?
> If anyone in the Australian SMA is on this distribution, I'd be ecstatic
to
> hear from you
> TIA.
> Regards,
> Richard Cass
> Iris Graphics, Inc.
> Bedford MA 01730
> USA
> 781 2760-5424


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Issues in Spread Spectrum Testing.

[protocol-labs]

Greetings!!

I'm looking for advice and any experience from the group regarding
spread spectrum testing.

I'm applying RSS-210 for Canadian requirements (License exempt RF
Devices...), and looking at the 900-928 and 2400-2483 MHz S.S. bands for
Direct Sequencing systems. 

A couple of the things that seem a little odd in making these
measurements are (directly quoting the standard):  

> 6.2.2.b.2
> The processing gain (PG) shall be at least 10 dB. This may be determined
> from any suitable method including from the jamming margin (JM) as follows:
> PG = JM + S/N + L , where S/N is the signal to noise ratio at the 
> information output and L is the system implementation loss. The jamming 
> margin 
> of a receiver is the minimum carrier-to-interference ratio
> (interference to be a single frequency) to meet a specified bit error
> ratio at the output of the receiver. The test report shall indicate how the 
> processing gain is determined.

Have you ever tried this, and will a simple unmodulated variable
amplitude signal sent from a directly connected (through a splitter??)
Signal Generator/Amp work for the interference signal. If not, how would
the interference signal of a known amplitude be coupled into the
receiver.  Any ideas on how else to obtain this measurement?  Also, is
the system implementation loss simply the reflected power?

> 6.2.2.b.3
> The peak output power of the transmitter shall not exceed one watt. Any
> antenna gain in excess of 6 dBi (6 dB above isotropic gain) shall be added to 
> the 
> measured RF output power before using the power limits.

What is a suitable means to get an accurate antenna gain reading,
presumably for the transmitting bands only.  Also, the one watt, peak
power, I assume is the total available power at the antenna jack, or
could it be the total forward power when connected to the antenna?

Thanks to anyone that can get back to me on this!

Best regards, 

Rob.
Protocol Labs

ph 604 218 1762
fx 604 572 9408

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WTB: RF Chamber suitable for 3m test of rack mount size

[Robert Macy]

Anybody out there have a chamber for sale?

Need at least 3m testing of a small refrigerator size.

- Robert -


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