Re: the difference between straight and reverse polarity antennas

Forgive my novice questions, but if I'm connecting a miniPCI wireless
card with a u.fl connector to an antenna with an N type connector
through a couple of pigtails do I simply have to make sure I have
connectivity from the centre pin of the u.fl on the wireless card to the
centre pin on the antenna or is it more complicated than that.

My other question is would it still work if the centre pin of the u.fl
connected to the outer part of the antenna?

Thanks in advance.


"Jeff Liebermann" <jeffl@xxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:cok62258gnd8rjoh0u2l2787ubogdnisve@xxxxxxxxxx
On Thu, 23 Mar 2006 19:47:58 -0000, "John Stubbings"
<anna.riceDELETE-THIS@xxxxxxxxxx> wrote:

Could someone explain the difference between straight and reverse
polarity antennas and why I should choose one over the other. Thanks.

It's not the polarity of the antenna. It's the polarity of the
connector. The FCC demanded that manufacturers use hard to find
connectors for wireless so that the antennas could not be changed.
When the rule was written, reverse polarity connectors were almost
impossible to find. Now, they're as common as the normal polarity.

For the details, see the photos at:
http://www.hyperlinktech.com/web/connectors.php
The normal connector and the reverse polarity connectors have center
pins with a different polarity (pin or socket).


--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558 jeffl@xxxxxxxxxxxxxxxxxxxxxx
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# http://www.LearnByDestroying.com AE6KS


.

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