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Article #435

Re: limited 802.11b range, SMC WAP/USR client, multiple WAPS, 802.11a as an alternative?

#435
From: Paul Grohe
Date: Tue, 07 May 2002 06:15
64 lines
3281 bytes
On Sun, 05 May 2002 02:30:44 GMT,
in the newsgroup ba.internet,
"colgate" <colgate@myemail.com> 
from Prodigy Internet http://www.prodigy.com posted:

> This value from FCC web site is fairly close, values from many well known
> brand such as CISCO's 100mW is posted on FCC form 731 for FCC authorization
> approval and that is a well quoted value.
> 
> However, if somebody could post the FCCID of each 5435 and 5312 then it
> could easily identified if there are two different batch and different
> quality control from different mfg.


The 720-5435 has the following markings:

 Sub-Assembly# 720.5435

 Supplier par# 750.5435

SMC7004AWBR 

FCCID: HEDWG3004A-17

Here is the result of the FCC-ID search:


<https://gullfoss2.fcc.gov/cgi-bin/ws.exe/prod/oet/forms/reports/Search_Form.hts?mode=Edit&form=Exhibits&application_id=101328&fcc_id=HEDWG3004A-17>

The first block-diagram document shows the card as a Harris
(Intersil) HFA3841 PRISM II chipset.

Looking at page 13 of "test report 1", it states that the
measured transmitter output power is about 10dBm. 30dBm is 1W, so
20dB less is 100mW. There you go....100mW transmit power at the
connector. 


<http://www.intersil.com/design/parametric/productinfo.asp?pn=HFA3841CN>

Surprise, Surprise... The Accton page shows a card and router
that look /strangely/ similar to the SMC and the PCMCIA card
within...

 <http://www.accton.com/homepage/t3.htm#3>

I assume the "gateway" that is shown looks like the "new" SMC
box.

FWIW: The SMC's switching chip is a Marvel 88E6050-RJJ.


<http://www.marvell.com/Internet/Products/products/1,2414,2-16-164-28,00.html>

The Processor is a Samsung S3C??? ARM (can't see the rest of part
number - hidden by a stick-on bumper).

The RF transceiver is a PCMCIA card.  The card has absolutely NO
markings on it. Half of the plastic "radome" is missing, exposing
the top half of the PCB. The two antennas are hard-wired via coax
to where the patch antennas *would* be.

Cheers,
Paul Grohe
Technical Details
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From: Paul Grohe <grohe@galaxy.nsc.com>
Newsgroups: alt.internet.wireless,ba.internet
Subject: Re: limited 802.11b range, SMC WAP/USR client, multiple WAPS, 802.11a as an alternative?
Date: Mon, 06 May 2002 23:15:55 -0700
Organization: Completely Disorganized
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