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A908NJ-DY A911NJ-DY 900MHz Yagi Antennas

900 MHz Yagi Antennas

A908NJ-DY, A911NJ-DY

The RadioLinx Directional Yagi Antenna can be used as bridge antennas between two networks or for point-to-point communications. The antennas are field adjustable for vertical or horizontal polarization with matched principal plane beamwidth for optimum performance in either orientation. This design also provides improved front-to-back ratio and sidelobe suppression that reduces interference. All models feature a robust mounting structure for consistent performance regardless of weather conditions.

Typically, Yagi antennas compose an array of linear elements, parallel to on another and attached perpendicular to and along the length of a metal boom. Elements on one side of the feed element are longer and act as reflectors. Elements on the other side of the feed element are shorter and act as directors. The antenna radiates in a beam out the end with the shorter elements. Beamwidth varies (longer length produces a narrower beam).

Características y Beneficios

· Broadband performance covering all 900 MHz frequencies and no tuning required. Provides optimal performance, minimizes inventory requirements, and reduces installation time.

· 360° welds at element and boom interface provide complete protection of the antenna’s internal mechanism against moisture.

· Solid aluminum mounting clamps with stainless steel hardware. Ensures a robust installation and allows the antenna to be mounted for horizontal or vertical polarization.

· End-fed type N female connector. Makes connector accessible for easier installations and protects the electrical connection from moisture and other extreme weather influences.

· Fully enclosed low loss feed system. No exposed gamma match to corrode or deteriorate.

· Black polyester powder-coated finish. Provides an added layer of protection, maximizing performance and durability under the toughest weather conditions.

Especificaciones

General Specifications

Polarization

Vertical or horizontal

Lightning Protection

DC grounded

Nominal Impedance

50 Ohms

Mounting Method

Mast mounting bracket

Termination

Type N jack

Hardware

Electrical Specifications

Model #

Frequency Range

Gain

Front-to-Back Ratio

A908NJ-DY

890 - 960 MHz

8 dBi

20 dB

A911NJ-DY

890 - 960 MHz

11 dBi

15 dB

Model #

Horizontal Beamwidth @ 1/2 Power

Vertical Beamwidth @ 1/2 Power

VSWR

A908NJ-DY

100°

54°

< 1.5:1

A911NJ-DY

52°

45°

< 1.5:1

 

Mechanical Specifications

Model #

Wind Survival

Lateral Thrust at Rated Wind

Equivalent Flat Plate Area

A908NJ-DY

200 mph with no ice and 110 mph with 0.5" radial ice build-up

7.9 lbs

0.10 ft²

A911NJ-DY

200 mph with no ice and 110 mph with 0.5" radial ice build-up

12.6 lbs

0.16 ft²

Model #

Length

Weight

Elements

A908NJ-DY

14 inches

0.7 lbs

3

A911NJ-DY

20.5 inches

0.9 lbs

5

Descargas

900 MHz Yagi Antennas Datasheet 74,95 kB Última Modificación 14.12.2009