These omnidirectional antennas have constant patterns and impedance over a greater bandwidth than a conventional ground plane or coaxial dipole antennas. This superiority makes them eminently suitable for use at base stations for mobile systems and particularly for ground to air communication services.
They are of rugged construction. Standard models are manufactured from aluminium.
FEATURES / BENEFITS
Broad elevation radiation pattern provides superior coverage for ground to air links
Designed to withstand the most severe weather conditions
Robust design and construction
Heavy-duty welded on radials
Painted finish for additional weather protection
Can be mounted to a horizontal surface (model 218) or to a mounting pole (model 218.1)
Model 218.1 shown
Operating Frequency Range
2.0 (+0 / -1)
Azimuth Radiation Pattern
Omni Directional ± 0.25dB
Half Power Beamwidth Elevation
Maximum Power Rating
0.3 average. Higher power ratings available upon request
Impedance (unbalanced), ohms
Refer to diagram
218 Model: Designed for horizontal mounting. Refer diagrams.
218.1 Model: Permits mounting onto vertical surfaces.
U-bolts supplied for use on poles with OD of up to 50mm