Model AH-850-15 700-1000 MHz 15 dBic Gain 
 

HELICAL ANTENNA

Design Features: The AH-850-15 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 commercial grade antenna provides superior performance as compare to significantly larger and more expensive products. Our AH series helical antennas are smaller than conventional yagi antenna. The extended range AH-850-15 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 extended range AH-850-15, 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-850-15 Helical Antenna is light weight, broadband and rugged helical antennas, supplied with ABS 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. For higher gain requirement, the Helical antenna can be supplied in DUAL stacked or QUAD stacked arrays with suitable power splitter/combiner cable harness.

Electrical Specifications:
Frequency Range700-1000 MHz
Gain15 dBic
Bandwidth200 MHz.
Antenna TypeDirectional Helix
PolarizationCircular - RHCP or LHCP
Input Impedance50 Ohms
Radiation PatternDirectional
Horizontal Beamwidth -Half Power Points40+/-5 Degrees Typical
Front to Back Ratio20 +/-2 dB. Typical
VSWR1.5:1 Over 200 MHz
RF Power Handling Capacity250 Watts
Input TerminationN-Female

Mechanical Specifications:
MaterialsFiber Glass, Copper, Aluminum
Mounting Hardware -MaterialsMarine Grade Stainless Steel
Wind Rating180 Km/Hr.
Overall Length1000 mm
Shipping Length1100 mm
Radiating MaterialHigh Quality Copper
Maximum Mount Pipe Diameter 52 mm (2 Inches)
Radome MaterialHigh Strength ABS
Radome Length900 mm
Gross Weight4 Kgs.

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