Bob,
I believe the difference lies in the FCC determination on near-field vs
far-field RF field strength fall off.
Regards
Wolf
[email protected] on 01/21/2000 05:51:37 AM
Please respond to [email protected]
Sent by: [email protected]
To: [email protected]
cc: (Wolfgang Josenhans/MW/US/3Com)
Subject: Question on 15.31
Tha paragraphs are from FCC Part 15.
=======================================
---------------------- Forwarded by Robert E. Heller/US-Corporate/3M/US on
01/21/2000 05:49 AM ---------------------------
Robert E. Heller
01/21/2000 05:49 AM
3M Product Safety, St. Paul, MN 55107
76-1-01
EMC Laboratory Fax: 651-778-6252
To: [email protected]
cc:
Subject: Question on 15.31
I have not heard back fron the FCC on the following question. Does anyone
have any insight into the answer?
Thanks for your time,
Bob Heller
=============================
---------------------- Forwarded by Robert E. Heller/US-Corporate/3M/US on
01/21/2000 05:46 AM ---------------------------
Robert E. Heller
01/19/2000 09:52 AM
3M Product Safety, St. Paul, MN 55107
76-1-01
EMC Laboratory Fax: 651-778-6252
To: [email protected]
cc: Roger D. Kuhn/US-Corporate/3M/US
Subject: Question on 15.31
Mr. LaForge, I have a question concerning paragraphs 15.31(f)(1) and
15.31(f)(2). Paragraph 15.31(f)(1) concerns measurements above 30 MHz and
at the bottom of the paragraph has a distance extrapolation factor of
20dB/decade. Paragraph 15.31(f)(2) concerns measurements below 30 MHz and
at the bottom of the paragraph has a distance extrapolation factor of
40dB/decade.
Why are there different extrapolation factors above and below 30 MHz?
Thank you,
Bob Heller
3M Company
651-778-6336
[email protected]
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