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BreezeCOM Antennas and Cables - Europe
BreezeNET PRO.11 products are supplied in two models, standard and
"D". They are identical except for their antennas.
Standard models are supplied with two integral 2 dBi
omni-directional antennas. These antennas are intended for indoor installations with short
to medium distances between sites.
The "D" model is supplied with two customized female
connectors for use with the following range of external antennas:
- 2 x 6 dBi omni-directional transmit/receive antenna sets.
- 2 x 8.5 dBi uni-directional transmit/receive antenna sets.
- Single transmit/receive 18 dBi uni-directional antenna.
Dual Transmit/Receive Antenna Sets:
Two transmit/receive external antenna sets are available:
 | 2 x 6 dBi omni-directional antennas |
| 2 x 8.5 dBi uni-directional antennas. |
These sets are suitable for all indoor applications as well as for most outdoor short
to medium range ground level applications where antenna diversity is required. Both are
supplied complete with cables.
Omni-6
Omni-6 dBi antennas are intended for indoor or outdoor
installation with greater distances between sites. The set includes two omni-directional
6dBi transmit/receive antennas together with the appropriate cables and connectors.
3 meters RG-58 cable complete with assembled
connectors:
- SMA male connector on one end connects to the WB-10D.
- N-type male connector on the other end connects to antenna. 
Uni-8.5
The 8.5 dBi antenna has a wide beam width (75 degrees horizontal,
50 degrees vertical) and is intended for both indoor and outdoor installations for short
to medium distances between sites. The set includes a Transmit/Receive 8.5dBi directional
antenna with appropriate cables and connectors.
6 meters RG-58 cable complete with assembled
connectors:
- SMA male connector on one end connects to the WB-10D.
- N-type male connector on the other end connects to antenna. 
Extension Cables
The cables supplied with the antenna sets are generally sufficient
for most window or wall antenna installations.
Extension cables of 5, 10, and 20 meters (Europe) or 10, 20 and 30 ft (USA) are available.
BreezeCOM External Antennas
PROFESSIONAL INSTALLERS ONLY
Detached antennas, whether installed
indoors or out, are to be installed ONLY by experienced antenna installers that are
familiar with local buildings and safety codes, and wherever necessary are licensed by
appropriate government regulators. Failure to do so may void the BreezeNET Product
Warranty and will certainly expose the end user to legal and financial liabilities.
BreezeCom and its resellers or distributors are not liable for injury, damage or violation
of government regulations associated with the installation of detached antennas.
Single High Gain Transmit/Receive Antennas
Single transmit/receive antennas are supplied with 18 dBi gain
only . Various cable lengths are available for different applications. The 18 dBi model is
used for rooftop installations.
Rooftop Installations
Rooftop antenna installations are
extremely dangerous and incorrect installation may result in death, injury or damage.
Rooftop installations must be performed by professional antenna installers only.
Rooftop installations provide several advantages:
| They generally increase antenna range. |
| There are likely to be less obstacles in the path. |
| Height above the ground gives improved performance. |
| Multipath problems resulting from reflections from buildings,
trees and variations in terrain are reduced to a minimum. |
Uni-18
The 18 dBi antenna has a narrow beamwidth (14
degrees) which increases sensitivity to inaccurate alignment, but decreases the influence
of multipath propagation (fading). It is intended for outdoor installations over medium to
long distances.
It is supplied as a single uni-directional 18 dBi transmit/receive antenna together with
the appropriate cables and connectors. It is probably the best choice for most medium to
long range applications.
10, 15 or 20 meters low loss cable complete with assembled
sections and connectors:
- SMA male connector on one end connects to the WB-10D.
- N-type male connector on the other end connects to antenna.
Extension Cables
Extension cables of 5, 10, 15 and 20 meters are available.
Summary of Antenna Characteristics
| Antenna Features |
6 dBi |
8.5 dBi |
18 dBi |
| Gain Level |
low |
medium |
high |
| Beamwidth |
omni |
wide |
narrow |
| Required Alignment Accuracy |
none |
low |
high |
| Multipath Sesitivity |
high |
high |
low |
| Antenna Size |
small |
small |
medium |
Adjusting External Antenna Alignment
All BreezeCOM external antennas are supplied with detailed assembly instructions.
Follow these instructions as the first step in the physical alignment of your antennas.
Omni-6 Antenna Alignment
Position this antenna in its mounting bracket in any suitable vertical position.
Uni-8.5 Antenna Alignment
Position this antenna vertically in its mounting housing on a wall or a window. It
is generally sufficient to align this antenna ``by eye'' in the general direction of the
remote site. The wide beamwidth of this antenna does not usually require finely tuned
alignment.
Uni-18 Antenna Alignment
These rooftop antennas require fine tuning using the RSSI (Received Signal Strength
Indication) test described in the user guides of the specific BreezeCOM products.
Antenna Selection Guide
The following guidelines will help you to select the correct
BreezeCOM antennas for your BreezeNET D-model wireless bridge or access point.
| Choose the type of antenna needed for the specific application -
omni-directional or uni-directional. |
| Choose the gain of the antenna/s using the
BreezeNET Range Table, taking into account:
- The distance between the sites.
- The location of the antenna (window or roof). This determines the length of
cable required from the unit to the antenna.
After you have selected the correct antenna for your application, determine the data
rate from the following table.
| BreezeNET Range Table |
| Antenna Gain |
Cable Length |
Total Gain |
Range for 1Mbps [meters] |
Range for 2Mbps [meters] |
Range for 3Mbps [meters] |
| 6dBi Omni |
3 m |
3 dB |
800 |
300 |
100 |
| 8.5dBi |
6 m |
2.5 dB |
800 |
300 |
100 |
| 18dBi |
10 m |
16 dB |
2500 |
1000 |
350 |
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