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RadioLinx RLX-IH User Manual
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RLX-IH ♦ 802.11b ReferenceIndustrial HotspotPage 84 of 99 ProSoft Technology, Inc.April 10, 2007NOTE: In Mexico, the user is responsible for ensuring that the selectedfrequency channels comply with Mexican regulatory standards. At the time ofthis printing, only channels 9 through 11 can be used outdoors (1 through 8cannot); however, channels 1 through 11 can all be used indoors.Approved antennas with power ampWhen the radio is used in conjunction with the amplifier, the antennas are limitedto antennas listed in the following table:Type Pattern Gain Connector Size (cm) Min. distance fromBody1/2 Wave Omni 2 dB SMA-RP 7H x 1.5 20 cm1/2 Wave art. Omni 2 dB SMA-RP 10H x 1.0 20 cmCollinear Array Omni 3 dB SMA-RP 6H x 3.0 20 cmCollinear Array, art. Omni 5 dB SMA-RP 19H x 1.0 20 cmCollinear Array Omni 5 dB SMA-RP 19H x 1.0 20 cmCollinear Array Omni 8 dB N-RP 43H x 1.6 20 cmCollinear Array Omni 9 dB N-RP 43H x 1.6 20 cmCollinear Array* Omni 12 dB N-RP 106H x 4.0 25 cmPatch Directional 8 dB SMA-RP 15.0H x 15.0 20 cmPatch* Directional 11 dB SMA-RP 22H x 12.7 20 cmPatch* Directional 13 dB N-RP 22H x 22 28 cmYagi* Directional 14 dB N-RP 81L x 9.0 28 cm* Only allowed in a point-to-point network.6.4.6 Antenna location, spacing, and mountingConsider the following points regarding antenna location, spacing, and mounting: When placing antennas, ensure a clear line of sight between the masterradio's antenna and all of the other radio antennas, if at all possible. If the site base contains obstructing terrain or structures, mount the antennaon a tower or rooftop to provide a line-of-sight path. The line-of-sightconsideration becomes more important as the transmission path becomeslonger. It is most important as the transmission path approaches the 20-milemaximum. Mount the antennas as high off the ground as is practical. The higher anantenna is above the ground, the greater its range. Mount the antennas away from massive structures. Radio signals bounce offmetal walls, for example, which can compromise a clear signal. Mount antennas to minimize the amount of nearby metal structures in theantenna pattern. Mount the antennas and install radios away from sources of RF interference. Use the shortest possible antenna cable length. Signals lose power over thecable's distance. Choose antennas that are appropriate for the network's intended function. |
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