Table 2-4 Lateral Force - Metric; Table 2-5 Lateral Force - Us - Motorola PTP 250 User Manual

Site planning
The lateral force produced by a single PTP 250 ODU (integrated or connectorized model)
at different wind speeds is shown in
Table 2-4 Lateral force – metric
Type of ODU
Integrated
Connectorized
Calculation of lateral force (US)
The magnitude of the lateral force can be estimated from:
Force (in pounds) = 0.0042Av
Where:
The lateral force produced by a single PTP 250 ODU (integrated or connectorized model)
at different wind speeds is shown in
Table 2-5 Lateral force – US
Type of ODU
Integrated
Connectorized
When the connectorized ODU is used with external antennas, the figures from the antenna
manufacturer for lateral force should be included to calculate the total loading on the
mounting structure.
2-8
Largest
surface area
(square meters)
0.130
0.093
2
Is:
A
v
Largest
surface area
(square feet)
1.36
1.00
UNDER DEVELOPMENT
Table 2-4.
Lateral force (Kg) at wind speed
(meters per second)
30 40
12 22
9 16
surface area in square feet
wind speed in miles per hour
Table 2-5.
Lateral force (lb) at wind speed
(miles per hour)
80 100
36.6 57.1
26.9 42
Chapter 2: Planning considerations
50 60 70
34 49 66
24 35 48
120 140 150
82.3 146.2 228.5
60.5 107.5 168.0
phn-2182_003v004 (Oct 2011)