Model AH-3842 3800-4200 MHz 17 dBi Gain 
 

HELICAL ANTENNA

Design Features: The AH-3842 uses extended stubs to provide the greater gain while maintaining the wider beam-width making it perfect for satellite news gathering application. This high-gain low-profile antennas use Circular Polarization Antenna Technology - which delivers better penetration through obstruction and interference. This commercial grade mobile SNG 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 SNG antenna is highly suitable for mobile satellite news gathering systems. The AH-3842 SNG 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-3842, 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) SNG helical antenna models are available. The AH-3842 SNG Helical Antenna is light weight, broadband and rugged helical antennas, supplied 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 SNG 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 Range3800-4200 MHz
Gain17 dBi
Bandwidth3.8-4.2GHz
PolarizationCircular - LHCP or RHCP
Input Impedance50 Ohms
Radiation PatternDirectional
Horizontal Beamwidth -Half Power Points45 Degrees
Front to Back Ratio18 dB.
VSWR2:1
RF Power Handling Capacity150 Watts
Input TerminationN-Female

Mechanical Specifications:
MaterialsCopper, Aluminum & Fiberglass
Mounting Hardware -MaterialsMarine Grdae Stainless Steel
Wind Rating200 KMPH
Overall Length300 mm
Shipping Length350 mm
Radiating MaterialHigh Quality Copper
Maximum Mount Pipe Diameter 52 mm (2 Inches)
Radome MaterialHigh Strength Fiber Glass
Radome Outer Diameter45 mm
Gross Weight1 Kgs.

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