【Main feature】
        BGG39 is a set of GPS L1 & L2 , GLONASS G1 & G2 and Beidou2:B1,B2,B3 Multi-system measurement antenna, can be widely used in geodesy, bridge construction, marine surveying,underwater topography measurement etc.

        The antenna using multi feedpoint design, ensure the antenna phase center and the geometric center of the coincidence, improve the accuracy of measurement. Built-in low noise amplifier module,through the multi-stage filter to eliminate interference signal,ensure the normal work in harsh electromagnetic environment.

【Specifications】
Frequency [MHz]               1555MHz~1615MHz/1200MHz~1275MHz
Input impedance               50Ω
Gain [dBi]                         40±2（Containing LNA gain）
Polarization                       right-hand circular polarized（RHCP）
Axial ratio[dB]                   <3dB
Elevation Coverage            360°
output（VSWR）              ≤2.0
Phase center error             ±2mm

【LNA Specifications】
Gain (dB)                          40 dB
Noise figure(dB)                 ≤1.8 dB
Gain flatness (dB)               ±1 dB
Out(VSWR)                       ≤1.5
Input（VSWR）                 ≤1.5
Put at 1Db Gain Compression Point       ≥0dBm
DC Voltage [V]                   3－15V
DC Current [mA]                ≤45mA
Delay                                ≤5ns

【Mechanical Specifications】

Dimension [mm]                 Ø180×70
Connector                         TNC-C-K
Mounting                           5/8 screw mounting
Waterproof Grade               IP67
Shockproof Grade               IK08
Operating temp.                 -40℃～+85℃
Storage temp.                    -40℃～+85℃