Strona wydrukowana z adresu: http://radmor.com.pl/Civil-products/Accessories/Antennas/Stationary/Stationary-antenna-3287

Stationary antenna 3287

Stationary antenna 3287

Stationary antenna 3287

The 3287 directional stationary antenna id designed to work with base radiotelephones operating in frequency band 142 ÷ 174 MHz.

Advantages of the antenna:

  • suitable for use in extreme environmental conditions,
  • long-term stability of electrical and mechanical parameters,
  • all used materials are galvanically compatible to minimize corrosion.

Electrical specifications:

Type

Yagi-Uda six-elements antenna

Versions of the antenna as a function of operating frequency

Version

Operating bands
[MHz]

1

146÷156

2

154÷164

3

162÷174

4

142÷151

Nominal input impedance

50 Ω

SWR in operating band

<1,5

Polarization type

vertical or horizontal

Antenna's power gain with respect to the dipole λ/2

8 dBd (10,15 dBi)

Front-to-back radiation ratio

>15 dB

Code of horizontal antenna radiation pattern (in H vector plane)

025EB20
(according to CEPT T/R 25-08 Recommendation)

Code of vertical antenna radiation pattern (in E vector plane)

020EB10
(according to CEPT T/R 25-08 Recommendation)

Half-power angle in horizontal plane (H vector)

50°

Half-power angle in vertical plane(E vector)

40°

Max power

100 W

Type of antenna's connector

N-50 plug

Antenna input connector is an open-circiut for DC.

Mechanical specifications:

Max dimensions

2620 x 1050 mm

Weight

6 kg

Resistance to wind (speed) [Vw ]

45 m/s

Protection against lightening

galvanic, by additional wire

Protection against ice

dielectric shield

Mounting

mounting bracket adapted to the diameter of the antenna's mast Φ 51 ÷ 76 mm

Environmental conditions:

Operating temperature

-40°C ÷ +85°C

Relative humidity

< 98% w temp. +40°C

Operating conditions:

Installation procedures, conditions and their influence on antenna radiation pattern are described in the II-01/3287 Installation Manual which is included in the antenna set. All antennas elements are DC-grounded.  N-50 connector is made for WL-50-2,25/7,25 coaxial cable. The N-50 connector is included in the antenna set.