<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

    Special base station antenna

    Name:High-speed rail 1800 - FAD double-frequency electric adjustable antenna

    Model:基站板狀天線

    Frequency:1700-2700

    Gain:17-21

    Negative Way:+45°

    Standing Wave Ratio:30

    Product Features:

    Electrical indicators

    Working frequency (MHz)

    1710~1830

    1885-1920

    2010-2025

    2575-2635

    Polarization method (°)

    ±45

    ±45

    Vertical ESC angle range ( o )

    2-12

    2-12

    Accuracy of electric down-tilt angle ( o )

    ±1

    ±1

    Voltage standing wave ratio of each radiation port

    ≤1.5

    ≤1.5

    Third-order intermodulation (dBm, @2×43dBm)

    ≤-107

    ≤-90

    ≤-90

    ≤-90

    Second-order intermodulation (dBm, @2×43dBm)

    /

    ≤-90

    ≤-90

    ≤-90

    Isolation between 1800-FA/D frequency bands

    ≥30

    Average power tolerance (W)

    ≥120

    ≥100

    ≥200

    Isolation (dB)

    ≥25

    ≥25

    Horizontal half-power beam width (°)

    32 ±4

    32 ±4

    Vertical half-power beam width a (°)

    ≥7

    ≥6.5

    ≥6

    ≥5

    Gain (dBi)

    ≥19.5

    ≥20

    Cross polarization ratio (dB, axial)

    ≥18

    ≥18

    Cross polarization ratio (dB, within ±15° range)

    ≥10

    ≥10

    Front-to-back ratio (dB)

    ≥27

    ≥27

    Upper side lobe suppression (dB)

    ≤-17

    ≤-17

    The first zero point fill (dB)

    ≥-22

    ≥-22

    Beam ±30° edge power drop (dB)

    12 ±3

    12 ±3

    Interface Type

    2 ×7/16DIN

    2 ×7/16DIN

    Mechanical index

    Connector type

    2x2-7/16/DIN-Female

    Antenna size: (mm)

    450*145*1335

    Radome material

    FRP

    Antenna color

    gray

    Working temperature (℃)

    -40 ~+60

    Ultimate wind speed (m/s)

    36

    Antenna weight (kg)

    20

    Installation method

    Pole

    Working temperature (℃)

    -40~+60

    Pole diameter (mm)

    φ50~φ115