Beacon Antenna
 For use at airports as ground based beacon antenna , for Glide
Slope Monitoring and Localizer Monitoring Antenna, the antenna retains the Pulse Shape
without introducing any distortion in the receiving and transmission mode. The radiation
pattern is such as to work with air borne transponder providing coverage in angular sector
of 60 degrees on either side of the nose of the aero plane and 20 degree above and below
the horizon.
These are rugged, all weather beacon antenna and is made of high quality 1/4 inch round
aluminum elements and ¾ Inch round aluminum boom. Special mounting hardware is fixed on
the back of the antenna which permits the antenna for 360 Degrees in Azimuth and 90
Degrees in Elevation orientation.
These beacon antenna can be mounted to work as Horizontal or Vertical polarized antenna
and are delivered in fully assembled condition
Design and Construction:
These beacon antenna feed is designed with tunable feed, eliminating the use of
folded dipole. The antenna termination uses N-Female connector fixed on the antenna
dipole. The unique design of the beacon antenna feed also works as matching device
together with antenna tuning facility to keep the low VSWR with perfect radiation pattern.
Electrical Data
| Parameters. |
Glide Slope Monitoring Antenna. |
Localizer Monitoring Antenna. |
| Frequency Range - MHz. |
939.6 - 966.6 |
905.1-932.4 |
| Impedance - Ohms. |
50 |
50 |
| VSWR - equal to or better than. |
1:1.2 |
1:1.2 |
| Gain - dBi. |
13 |
10 |
| Horizontal Beam width (Half Power Points)
- degrees. |
40 |
60 |
| Vertical Beam width (Half Power Points) -
degrees. |
30 |
50 |
| Front to back ratio - dB. |
20 |
18 |
| Polarization. |
H or V |
H or V |
| Termination. |
N-Female. |
N-Female. |
Mechanical Data
Support boom -
Material.
- Cross section.
- O.D. - mm ( Inches). |
Aluminum
Round - Tube
19 ( 3/4 ) |
Aluminum
Round - Tube
19 ( 3/4 ) |
Elements -
Material.
- Cross section.
- O.D. - mm ( Inches). |
Aluminum
Round - Rod
6 ( 1/4 ) |
Aluminum
Round - Rod
6 ( 1/4 ) |
| Number of
Elements. |
5 |
5 |
| Mounting Clamps
Position |
At the back end of Antenna. |
At the back end of Antenna. |
| Maximum Mount
Pipe Diameter - mm (Inches). |
40 ( 1-1/2 ) |
40 ( 1-1/2 ) |
| Wind Rating -
Km/Hr. |
180 |
180 |
| Overall length.-
mm (Inches) |
525 (20 ) |
525 (20 ) |
| Weight - Kg. |
1.5 |
1.3 |
|
|