Wind Loading
144
Note: When the connectorized version of 500 Series bridge is used with external antennas, the
figures from the antenna manufacturer for lateral force should be included to calculate to total
loading on the mounting structure.
12.3
Capabilities of the PTP 500 Series Bridges
The structure and mounting brackets of the PTP Series systems are capable of withstanding wind
speeds up to 151mph (242 kph). The installer should ensure that the structure to which the 500
Series Bridge is fixed to is also capable of withstanding the prevalent wind speeds and loads.
12.4
Wind Speed Statistics
Installers are recommended to contact the national meteorological office for the country concerned
to identify the likely wind speeds prevalent at the proposed location. This will enable the installer
to estimate the total wind loading on the support structures.
Examples of the sort of statistics that are available are:
USA - Reported Fastest Single Wind Velocities for Selected U.S. Cities (Source: National Weather
Service)
City, State
Wind Velocity (mph)
Bismark, North Dakota
72
Buffalo, New York
91
Chicago, Illinois
87
Hatteras, North Carolina
110
Miami, Florida
132
New York, New York
99
Pensacola, Florida
114
UK Meteorological Office,
Peak wind speed contour maps can be found as Fig 3a/3b at:
Содержание MOTOWI 4
Страница 1: ...PTP 500 Series User Guide phn 1115 000v001 ...
Страница 74: ...Web Page Reference 74 Figure 37 Save Configuration File Screen ...
Страница 100: ...Web Page Reference 100 Figure 59 Spectrum Management as seen from the Master ...
Страница 108: ...Web Page Reference 108 Figure 66 Spectrum Management Master Screen With Operational Restrictions ...
Страница 112: ...Web Page Reference 112 Figure 68 Remote Management ...
Страница 165: ...Data Rate Calculations 165 Figure 112 QPSK 0 50 Single Payload Figure 113 QPSK 0 75 Single Payload ...
Страница 166: ...Data Rate Calculations 166 Figure 114 16 QAM 0 50 Single Payload Figure 115 16 QAM 0 75 Single Payload ...
Страница 167: ...Data Rate Calculations 167 Figure 116 64 QAM 0 67 Single Payload Figure 117 64 QAM 0 83 Single Payload ...
Страница 168: ...Data Rate Calculations 168 Figure 118 256 QAM 0 75 Single Payload Figure 119 QPSK 0 50 Dual Payload ...
Страница 169: ...Data Rate Calculations 169 Figure 120 QPSK 0 75 Dual Payload Figure 121 16 QAM 0 50 Dual Payload ...
Страница 170: ...Data Rate Calculations 170 Figure 122 16 QAM 0 75 Dual Payload Figure 123 64 QAM 0 67 Dual Payload ...
Страница 171: ...Data Rate Calculations 171 Figure 124 64 QAM 0 83 Dual Payload Figure 125 256 QAM 0 75 Dual Payload ...
Страница 197: ...Glossary 197 UTP Unshielded Twisted Pair VLAN Virtual Local Area Network ...
