Bob Richards b...@toprudder.com wrote:
List-Post: emc-pstc@listserv.ieee.org
Date: Thu, 8 Jun 2006 13:34:58 -0700 (PDT)
From: Bob Richards b...@toprudder.com
Subject: Re: RF Power Amplifiers
To: Grace Lin graceli...@gmail.com
I don't believe that formula takes into account the need for 80%
Return Receipt
Your RE: RF Power Amplifiers
document:
Thanks.
Mit freundlichen Grüßen
Yours sincerely
Dipl.-Ing. Michael Loerzer
Managing Director
Regulatory Affairs Specialist
Chairman of the Product Conformity Group (DIN ANP German Committee of
Standards Users)
GLOBALNORM - Global Regulatory Compliance
Fon: +49 30 6392-3860, Direct Call:
Return Receipt
Your RE: RF Power Amplifiers
document:
Return Receipt
Your RE: RF Power Amplifiers
document:
Grace
For the 80-100 range the power sounds about right, but be careful many
amplifiers will ouptut reduced power if the VSWR at their output exceeds 2:1.
For the other ranges the 75 W should be more like 25-50 W, again depending on
the amplifier and VSWR.
The high frequency amplifier should be
Dear Group Members,
Please help me to determine specification for RF power amplifiers for
61000-4-3 and 61000-4-6 tests.
I found an equation to calculate power required (ETS-Lindgren Antenna Catalog,
page 71):
PdB(W) = 20 log10 (Edesired(V/m)) +20 log10 (d m) – 20 log10 (fMHz)
Ni Hao, Grace,
Nà shì hen hao, xièxiè nín.
Don
_
From: Grace Lin [mailto:graceli...@gmail.com]
Sent: Thursday, June 08, 2006 12:28 PM
To: EMC-PSTC@listserv.ieee.org
Subject: Re: China RoHS Common QA
Hi Don,
3C means CCC. China uses 3C to stand for CCC. It is
Kyaw:
It may help to see IEC Technical Report TR 60825-10 Safety of laser products
Part 10: Application guidelines and explanatory notes to IEC 60825-1,
Sections 9 Intrabeam Viewing, and 10, Extended Source Viewing.
Also see IEC Technical Report TR 60825-14 Safety of laser products Part 14: A
Hi Don,
3C means CCC. China uses 3C to stand for CCC. It is easier, and less
characters.
Business to business supply type is NOT under scope of the China RoHS law
(the Measure).
I hope this helps.
Best regards,
Grace
On 6/8/06, Don Gies d...@lucent.com wrote:
Grace,
In the Q A,
Hi Michael,
I will let you know when the translation version is available.
Best regards,
Grace
On 6/8/06, M. Loerzer-Mobile (GLOBALNORM) loerzer_mob...@globalnorm.de
wrote:
Hi Grace,
do have an english version?
Mit freundlichen Grüßen
Yours sincerely
Dipl.-Ing. Michael Loerzer
Dear Good People
Our product is a class II laser scanning engine. The
original source of laser is from a laser diode. It
passes through a lens and strikes two subtended
mirrors before it goes out for scanning. According to
IEC 60825-1, AEL limit is defined as C6x10-3W where C6
is based on angular
Grace,
In the Q A, they use the English term “3C” a lot, for instance in QA 1,
4, 5, 6, and 35. Is this “CCC”?
Also, in QA 10 and 12, they talk about “business to business” and
“B2B” in contrast with “business to consumer” and “B2C”. Is there
a general exemption for
The test levels of + 2 kV, + 4 kV, and + 6 kV for contact discharges shall
be applied to medical equipment.
Bob Heller
3M EMC Laboratory, 76-1-01
St. Paul, MN 55107-1208
Tel: 651- 778-6336
Fax: 651-778-6252
=
Hi Grace,
do have an english version?
Mit freundlichen Grüßen
Yours sincerely
Dipl.-Ing. Michael Loerzer
Managing Director
Regulatory Affairs Specialist
Chairman of the Product Conformity Group (DIN ANP German Committee of
Standards Users)
GLOBALNORM - Global Regulatory Compliance
Fon:
Wendy,
FCC and ETSI standards are free and legal for download and reproduction. I'm
not aware of any others.
Respectfully,
Brent DeWitt
Everett, WA
_
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of wendy
Sent: Wednesday, June 07, 2006 1:42 AM
To: emc-p...@ieee.org
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