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AFMS-1096/URC: 225-400 MHz Ground to Air Antenna

AFMS-1096/URC: 225-400 MHz Ground to Air Antenna
Code: AFMS-1096_URC

Please contact us for pricing information. 877-288-6139


The AFMS-1096/URC Antenna is a broadband omni-directional UHF ground-to-air communications antenna. It is a collinear array of two cylindrical parallel-fed dipole elements. The non-resonant dipoles provide broadband coverage and a horizontal pattern that is omni-directional within +/- 1.0 dB. The lower half power point of the vertically polarized radiation pattern falls on or slightly below the horizon. Pattern tilt is accomplished by feeding the dipoles in such a manner that the upper dipole lags the lower dipole in phase by a few degrees.

The vertical propagation upward is required to fill the cone of silence. The upper dipole is altered to provide both horizontal and vertical components, thus producing the required upward propagation. The dipole elements and internal transmission line are enclosed in a polyester fiberglass mast. This antenna may be used with any UHF transmitting and/or receiving set designed to operate within its frequency range and RF power handling limitations.

Installation:  The antenna may be installed to the ship's structure by a suitable mounting plate having matching bolt holes. The mounting plate must have a center hole to accommodate the antenna transmission line.

Considerations: The location for the AS-1096/URC Antenna onboard ship or mounted to a tower should be selected to provide maximum unobstructed coverage within the physical constraints of the mounting structure. UHF propagation is generally line-of-sight and antennas that are masked by surrounding structures produce limited coverage in azimuth and/or elevation.   For more information, please do not hesitate to contact us.


Specifications:       
Height with intergral lightning rod 162 inches
Diameter 13.5 inches
Weight 96 pounds
Operating Temperature -320 C to + 520 C
Frequency Range 225 to 400 MHz
Input Impdedance 50 ohms (nominal)
VSWR >2.1 over freq. range
Polarization Vertical
RF Power Rating 20 kW
Power Requirement none
Feed Type Unbalanced, coaxial cable
Connectors  HN & LC



AFMS-1096/URC Antenna Radiation Patterns:




AF-1096 URC Ground to Air antennaaf1096/urc horizontal radiation pattern

afms-1096/urc vertical patternafms-1096/urc horizontal tx pattern




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