User's Manual
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Upon opening the box one will find an N-female to N-male 36 inch long cable
taped to the grid reflectors which are face down with corners padded. After
removing the reflectors there will be a remaining box taped to the bottom. Inside
this box will be the mounting bracket, clamp and hardware, extension tube, and
dipole.
5.1.4 Product Overview
The 24 dBi Parabolic Grid Antenna is welded galvanized steel with gray epoxy
powder coat paint. Because of the design and color, it blends well with any
background. This antenna has a history thousands of successful field
installations over the years. Antennas are complete with Reflector, Patented
Dipole and Heavy Duty brackets for 1 to 2.5 inch diameter poles. These antenna
systems are designed to survive high wind environments.
Refer to the “Product Specification” Section for specification and characteristics.
Features
● 50 Ohm Passive Feed Dipole
● Horizontal or Vertical Mounting
● Type N Female Connector
● Rugged, Lightweight and Waterproof
● Adjustable Tilt Bracket
Cross-Wind Handling Capabilities of Reflector Antennas
Simple wind load calculations are based on the worst case condition of a cross
wind on a 24dBi reflector type antenna. The wind loading and resulting wind
induced torque, of the dipole and the reflector were taken separately to simplify the
torque calculations.
The wind side surface area of the dipole is 19 sq. in. at a center point 9.5 inches
from the pole (pivot axis). The reflector wires are estimated to have a side
sectional surface area of 78 sq. in. at a center point 5.5 inches from the pole.
At 100 MPH (146.7 fps or 0.1444 Mach) the equivalent wind pressure is .221 PSI.
The dipole load is Fdp = 19 x .221 = 4.2 lbs., and the reflector load is Fref = 78 x
.221 = 17.2 lbs.