First of all.... If you are using in the US, remember that most most 900Mhz
radios support up to 26db and 10dbi is FCC max antenna gain allowed.
Secondly, if we compare Horizontal to Verticaly pol designs.... 11dbi V
antennas are about 11feet tall apposed to 9dbi antennas about 5ft tall. H
antenna are very wide usually a foot or so, compared to a vertical of about
2". So a higher gain Omni, may likely be a monster to deal with.
MTI also makes a 900Mhz H POl antenna.
Someone else also had released one for about $650 but can't remember who, so
I'm not much help :-(
We were happen with the PacWireless horizontal, except for the price. The
PacWireless comes will a tower leg mount included, However, we learned that
being that close to the tower did cause inconsistent performance in all
directions. Plan on being 24" from tower leg, to no compromise coverage.
The other thing we found is that the best thing we could do to gain coverage
is to raide antenna to get over the tree line, (Provided farther out hils
blocked interference) and the higher we got, the more important wider
verticle beamwidth was. We do not recommend 11dbi or higher Omnis UNLESS
they also include electronic downtilt and/or NullFill to compensate for the
theoretical reduced verticle beamwidth of a typical 11dbi antenna.
So my point being... The deployment technique of the anntenna installation
has such a much larger effect on performance, than the 1 db difference, of
the Pacwireless being spec'ed under 10db max allowed.
Tom DeReggi
RapidDSL & Wireless, Inc
IntAirNet- Fixed Wireless Broadband
----- Original Message -----
From: "Kelly Shaw" <[EMAIL PROTECTED]>
To: "'WISPA General List'" <wireless@wispa.org>
Sent: Thursday, October 11, 2007 9:54 AM
Subject: [WISPA] Horizontally Polarized 900 MHz Antenna
I'm trying to find a horizontally polarized omni-directional 900 MHz
antenna. Pac Wireless has one for $899 and it is only 9 dB. Does anyone
know if there are any other options out there?
Kelly Shaw
Pure Internet
www.pure.net
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