I'm referring to commonly used single polarization antennas (rubber duck,
omni, patch, even yagis). I've used some circular polarized antennas on
the old Aironet ARLAN 630 (only one antenna port) to battle multipaths on
the warehouse full on "tin cans". The problem was putting such antenna
splits the power into two.
The 802.11 has TWO antenna ports....for "diversity" TX and RX. In theory,
won't this be better than having two antennas in vertical when you have
BTW, I agree with you on bridge point to point....I'll definitely go
At 10:21 AM 9/8/2001 -0700, Mark Wilson (UCSC) CATS/NTS wrote:
>If you are referring to omni antennas, the pole of the omni should be
>vertical. The radiating pattern is mainly horizontal. If it is a flat
>panel antenna, most have orientation guides for horizontal/vertical.
>Check the lobe diagram for the particular antenna.
>I would only use vertical for a bridge point to point.
>On Sat, 8 Sep 2001, Francis See wrote:
> > Hi,
> > I've noticed that most WLAN PC Cards antennas are layout flat in a
> > horizontal manner (I assume this is horizontally polarized
> antenna). While
> > 2.4 GHz access points having two antennas are normally installed in a
> > vertical polarization layout (even on brochures).
> > Shouldn't the AP antennas be installed in a horizontal format too?
> > Will performance improve if you put one antenna in horizontal and the
> > vertical to reduce multi-path problems on DSSS?
>If so, it would be in the instructions to do so.
> > Francis
> > _______________________________________________
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>Sr. Network Analyst
>Communications and Technology Services (CATS)
>UC Santa Cruz - Santa Cruz, Ca. 95064
>Aironet mailing list - Aironet@...