Re: 802.11b antennas

Poul-Henning Kamp <[email protected]>
Newsgroups gmane.os.freebsd.devel.mobile
Message-ID <[email protected]>
In message <[email protected]>, "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
[email protected]         | 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 [email protected]
with "unsubscribe freebsd-mobile" in the body of the message
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.