您的浏览器版本已过时。我们建议您更新浏览器到最新版本。

TW3870/TW3872 NGS认证、双频天线 GPS L1/L2, GLONASS G1/G2, 北斗B1,Galileo E1和SBAS

The TW3870/TW3872 employs Tallysman’s unique Accutenna™ technology covering the GPS L1/L2, GLONASS G1/G2, Galileo E1, BeiDou B1, and SBAS (WAAS, EGNOS & MSAS) frequency bands. It provides truly circular response over its entire bandwidth thereby producing superior multipath signal rejection. This antenna sets a new price/performance standard in its category.

支持GPS L1/L2, GLONASS G1/G2, 北斗B1,Galileo E1和SBAS (WAAS, EGNOS & MSAS);NGS认证。

The TW3872 has a pre-filter which increases the antenna’s immunity to high amplitude interfering signals, such as LTE and other cellular signals. TW3872具有预滤波器,可增强天线抵抗高幅度干扰信号(如LTE和其他蜂窝通信信号)的能力。

Features特点

  • Accutenna™ Technology         Accutenna™专利技术
  • Tight Phase Center Variation (PCV)  紧相位中心误差 
  • Low noise LNA:  2dB max.                                低噪
  • Temperature compensating LNAs              温度补偿 

Benefits优点

  • Superior multipath signal rejection                                多路径信号抑制
  • Ideal for RTK applications                                   RTK系统应用理想天线
  • Excellent signal-to-noise ratio                                              极佳信噪比
  • Consistent response in all operating temperatures       全温侯连续响应

The TW3870 is housed in a through-hole mount, weather-proof enclosure for permanent installations. It is available with either a flat or conical radome in either grey or white. The TW3870 is also available with either a TNC or N-Type connector on the base of the antenna or with a flying lead and a variety of connectors. TW3870有通孔安装、TNC或N型连接器。

L-Bracket or Pipe Mount (part numbers 23-0040-0, 23-0065-0 respectively) are available for non-rooftop installation. TW3870可选管型支架、L支架安装在非屋顶场合。

The TW3870 is IP67, REACH, and RoHS compliant.

Specifications规格

Mechanical:机械

Architecture: Twin Dual, quadrature feeds
Size: 60mm diameter
Weight: 185g
Enclosure: Radome: EXL9330, Base: Zamak White Metal
Attachment Method: Through hole (M18 x 1 thread)
Environmental: IP67, REACH, and RoHS compliant

Electrical: 电气

LNA Gain: 35dB typ, 32 dB min, each of L1 and L2 Bands,
Supply Current: 18mA typ. at 25°C
Supply Voltage: 2.5 to 16 VDC nominal (12VDC recommended max.)
Noise: 2dB max at 25°C
Axial Ratio, over full bandwidth, both L1 & L2: <2dB typical; 1dB max. at Zenith; 3dB at horizon

 

For further details, please download the Datasheet.

Drawings

TW3000 familyTW3000 family

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Performance性能表现

The attached PDF contains graphical representation of the axial ratios, Phase Centre Variation (PCV) and gain patterns over elevation and rotation.

TW3870Datasheet Rev3

TW3870 Measurements

This PDF document shows the plots of the Antex files created by NGS.  TW3870天线获NGS认证!

TW3870 PCV Plots

The raw files can be found on the NGS website here:
Tallysman TW3870 NGS Calibration Files

TW3870 - Phase Centre VariationTW3870 - Phase Centre Variation 

 

TW3870 Axial Ratio GPS L1 L2TW3870 Axial Ratio GPS L1 L2

TW3870 Axial Ratio GLONASS G1 G2TW3870 Axial Ratio GLONASS G1 G2

 

TW3870 Response GPS L1 L2TW3870 Response GPS L1 L2 

TW3870 Response GLONASS G1 G2TW3870 Response GLONASS G1 G2

 

 

 

 

 

 

 

 TW3870 NGS calibrationTW3870 NGS calibration