Date: Sun, 18 Aug 2002 21:16:58 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: "M. Warner Losh" <imp@bsdimp.com> Cc: fscked@pacbell.net, mobile@FreeBSD.ORG Subject: Re: 802.11b antennas Message-ID: <83818.1029698218@critter.freebsd.dk> In-Reply-To: Your message of "Sun, 18 Aug 2002 13:14:51 MDT." <20020818.131451.51626124.imp@bsdimp.com>
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In message <20020818.131451.51626124.imp@bsdimp.com>, "M. Warner Losh" writes: >All I know is that wrapping my lucent card in tinfoil didn't keep it >from interferring with other 802.11b equiptment in the house. Didn't >do any calculations, but it seemed to attenuate things by only 2dB or >so, but that could easily be in the noise. You metal about three times the thickness of regular kitchen-tinfoil and you need to get it connected to the metal case of the card. If you just wrap the tinfoil around the plastic part, it will just act like a capacitor in series with the antenna and likely as not not make any difference at all. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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