<tr id="vcfya"><samp id="vcfya"></samp></tr>
<output id="vcfya"></output>
<dfn id="vcfya"><strong id="vcfya"></strong></dfn>

    <strong id="vcfya"></strong>
  1. 欧美?级毛片一进一出夜本色,成人综合色图,久久99色综合,欧美人妻中文,97人妻碰碰中文无码久热丝袜,国产97色在线?|?日韩,一本色道无码不卡中文字幕,亚洲免费人妻

    Smart base station antenna

    Name:FA/D independent electrically controlled intelligent plate type antenna (4 * cluster head)

    Model:基站板狀天線

    Frequency:1700-2700

    Gain:15-17

    Negative Way:+45°

    Standing Wave Ratio:90

    Product Features:

    Electrical indicators


    Frequency range (MHz)

    1880 ~1920 (F)

    2010 ~2025 (A)

    2500 ~2695 (D)

    Polarization mode

    ±45 °

    Electric inclination angle (°)

    2 ~12

    Standing wave ratio of each unit port and calibration port

    ≤1.5

    Coupling degree from calibration port to each unit port (dB)

    -26±2

     

    unit

    Beam

    Horizontal half-power lobe width (°)

    100 ± 15

    90 ± 15

    65 ± 15

    Gain (dBi)

    ≥14

    ≥15

    ≥16.5

    Front-to-back ratio (dB)

    ≥23

    ≥23

    ≥23

     

     

    Broadcast beam

    Horizontal half-power lobe width (°)

    65 ±5

    Vertical half-power lobe width (°)

    ≥7

    ≥6.5

    ≥5

    Gain (dBi)

    ≥14

    ≥15

    ≥16

    Front-to-back ratio (dB)

    ≥28

    Business beam

    0° beam gain (dBi)

    ≥20

    ≥20.5

    ≥22

    0° beam horizontal plane half-power beam width (°)

    ≤26

    ≤26

    ≤26

    ± 60° beam gain (dBi)

    ≥16

    ≥16

    ≥18

    ± 60° beam horizontal plane half-power beam width (°)

    ≤32

    ≤32

    ≤32

    0° front-to-back ratio (dB)

    ≥32

    Mechanical index

    Connector type

    2x4 core cluster male header+2x5 core cluster male header

    Antenna size: (mm)

           1500*320*140

    Radome material

          UPVC

    Antenna color

          gray

    Working temperature (℃)

         -40 ~+60

    Ultimate wind speed (m/s)

           36

    Antenna weight (kg)

           twenty two

    Installation method

           Pole

    Working temperature (℃)

          -40~+60

    Relative humidity

           8%~98%

    Wind resistance

    Working wind speed 110Km/h Limit wind speed 110Km/h