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 Model AH-600D 500-700 MHz 11.5 dBic Gain 


Design Features: The AH-600D dual stacked helical antenna uses extended stubs to provide the greater gain while maintaining the wider beam-width. This high-gain low-profile antennas use Circular Polarization Antenna Technology - which delivers better penetration through obstruction and interference. This industrial grade antenna provides superior performance as compare to significantly larger and more complex products. Our AH series helical antennas are smaller than conventional cross elements yagi antenna. The AH-600D Helical Antenna is supplied with a specially designed mounting arrangement for steering the antenna in both planes, over 360 Degrees in Azimuth and 90 Degrees in Elevation for terrestrial and satellite links.

Constructions: The AH-600D, like all our AH series helical antennas, utilizes circular polarization to minimize the effects of multipath interference. Both Right Hand Circular Polarized (RHCP) and Left Hand Circular Polarized (LHCP) helical antenna models are available. The AH-600D Dual Stacked Helical Antenna is light weight, broadband and rugged helical antennas, supplied complete in assembled condition with fiberglass radome to protect the antenna from environment. Cylindrical enclosure is used for low wind loading and for minimal effect of ice formation on the helical antenna operation as well as providing an aesthetically pleasing appearance.

Beamwidth: If the dual stacked helical antenna installed as per given below configuration, the 60 degrees horizontal and 30 degrees vertical beam-width can be obtained. Similarly the dual array can be stacked horizontally to control the beam-width in horizontal plane without disturbing the vertical beam-width.

Electrical Specifications:
Frequency Range500-700 MHz
Gain11.5 dBic
Antenna TypeHelix
PolarizationCircular - LHCP or RHCP
Input Impedance50 Ohms
Radiation PatternDirectional
Beamwidth -3dB.60 Degrees Typical
Front to Back Ratio17 dB Typical
VSWR - Equal To or Better ThenBetter than 1:2.0
RF Power Handling Capacity250 Watts
Input TerminationN-Female

Mechanical Specifications:
Antenna MaterialsHigh Quality Copper, Aluminum & Fiberglass
Mounting Hardware -MaterialsMarine Grade Stainless Steel
Wind Rating190 KM/Hr.
Overall Length650-700 mm
Shipping Length750 mm
Radiating MaterialHigh Quality Copper
Maximum Mount Pipe Diameter 51mm (2 Inches)
Radome MaterialHigh Strength Fiber Glass
Radome Outer Diameter150 mm
Gross Weight10 Kgs.

Environmental Specifications:
Operating Temperature(-) 30 to +70 Degrees Celsius
Storage Temperature(-) 40 to +80 Degrees Celsius
Humidity0 to 95% RH