ProSoft RadioLinx RLXIB-IESC User Manual page 90

RLXIB-IESC ♦ 802.11a, b, g
RadioLinx® Industrial 802.11abg Serial and Ethernet Client
Approved antennas with power amp
When the radio is used in conjunction with the amplifier, the antennas are limited
to antennas listed in the following table.
Type
1/2 Wave
1/2 Wave art.
Collinear Array
Collinear Array, art. Omni
Collinear Array
Collinear Array
Collinear Array
Collinear Array*
Patch
Patch*
Patch*
Yagi*
* Only allowed in a point-to-point network.
6.3.9 Antenna location, spacing, and mounting
Consider the following points regarding antenna location, spacing, and mounting:

When placing antennas, ensure a clear line of sight between the master
radio's antenna and all of the other radio antennas, if at all possible.

If the site base contains obstructing terrain or structures, mount the antenna
on a tower or rooftop to provide a line-of-sight path. The line-of-sight
consideration becomes more important as the transmission path becomes
longer. It is most important as the transmission path approaches the 20 mile
(30 km) maximum.

Mount the antennas as high off the ground as is practical. The higher an
antenna is above the ground, the greater its range.

Mount the antennas away from massive structures. Radio signals bounce off
metal walls, for example, which can compromise a clear signal.

Mount antennas to minimize the amount of nearby metal structures in the
antenna pattern.

Mount the antennas and install radios away from sources of RF interference.

Use the shortest possible antenna cable length. Signals lose power over the
cable's distance.

Choose antennas that are appropriate for the network's intended function.

If antennas are on radios on the same network, mount them so they have the
same polarity. If the antennas are on separate networks, mount them so they
have a different antenna polarity—for example, mount one antenna vertically
and the other horizontally.

Space radios at least three feet (one meter) apart so they do not overload
each other. If antennas must be near each other:
Mount omnidirectional antennas directly above each other.
o
Position directional antennas so they do not point at nearby antennas.
o
Place antennas side by side if they point in the same direction. Place
antennas back to back if they point in opposite directions.
Page 90 of 98
Pattern Gain Connector
Omni 2 dB SMA-RP
Omni 2 dB SMA-RP
Omni 3 dB SMA-RP
5 dB SMA-RP
Omni 5 dB SMA-RP
Omni 8 dB N-RP
Omni 9 dB N-RP
Omni 12 dB N-RP
Directional 8 dB SMA-RP
Directional 11 dB SMA-RP
Directional 13 dB N-RP
Directional 14 dB N-RP
Size (cm) Min. distance from Body
7H x 1.5 20 cm
10H x 1.0 20 cm
6H x 3.0 20 cm
19H x 1.0 20 cm
19H x 1.0 20 cm
43H x 1.6 20 cm
43H x 1.6 20 cm
106H x 4.0 25 cm
15.0H x 15.0 20 cm
22H x 12.7 20 cm
22H x 22 28 cm
81L x 9.0 28 cm
ProSoft Technology, Inc.
Reference
User Manual
May 25, 2010