Page 204 - Tower Catalog
P. 204

Conversions, Tables, and Charts
Common Conversions Length
millimeter (mm) inch (in) meter (m) foot ( ) inch (in) meter (m)
Weight Force
0.0394 kilogram (kg) pound (lb) 2.2046 newton (n)
pound-force (lbf) kilonewton (kn) newton (n)
0.2248 0.0044 1000.0
From To Mul ply By
From To Mul ply By
From To
Mul ply By
inch (in) millimeter (mm) 25.4
pound (lb) kilogram (kg) 0.4536
foot ( ) meter (m) 0.3048 meter (m) inch (in) 39.3700
pound-force (lbf) newton (n) 4.44822
kilonewton (kn) pound-force (lbf) 224.8089
newton (n) kilonewton (kn) 0.001
Ballast Formula for rF-n Series Mounts
W = 0.150 (P)(A)(n)(H)
Where W = required ballast per tray (2 trays per mount) in pounds P = design wind pressure per UBC formula
A = area of one antenna (sq  )
n = number of antennas
3.2808 0.0254
pound-force (lbf) kilonewton (kn)
H = distance from center of antenna to roof surface ( )
The total ballast weight required is 2 x W Source: Andrew Solu ons
Universal Tripod Mounts
Ballast Formula for TP-g Series Mounts
W = (0.147 (P)(A)(n)(H)) - 83 (1.25 factor of safety for overturning) W = (0.176 (P)(A)(n)(H)) - 83 (1.50 factor of safety for overturning)
Where W = required ballast per tray (2 trays per mount) in pounds P = design wind pressure per UBC formula
A = area of one antenna (sq  )
n = number of antennas
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H = distance from center of antenna to roof surface ( )
The total ballast weight required is 3 x W Source: Andrew Solu ons


































































































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