Datasheet > 33-3872-XX-YY-ZZZZ

33-3872-XX-YY-ZZZZ

更新时间： 2024-11-02 01:23:11

品牌	Logo	应用领域
TALLYSMAN		全球定位系统
页数	文件大小	规格书
2页	216K
描述
TW3870 / TW3872 GPS L1/L2 GLONASS G1/G2 BeiDou B1 Galileo E1

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33-3872-XX-YY-ZZZZ 数据手册

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A Tallysman Accutenna^®

TW3870 / TW3872 GPS L1/L2 + GLONASS G1/G2 + BeiDou B1 + Galileo E1

The TW3870/ TW3872 employ Tallysman’s unique Accutenna

technology providing dual band GPS L1/L2, GLONASS G1/G2 +

BeiDou B1 + Galileo E1 coverage and is especially designed for

precision dual frequency positioning.

The TW3870/TW3872 features a precision tuned, circular dual

feed, stacked patch element. The signals from the two orthogonal

feeds are combined in a hybrid combiner, amplified in a wide-band

LNA, then band-split for narrow filtering in each band and further

amplified prior to recombination at the output.

The TW3870/TW3872 offers excellent axial ratio and a tightly

grouped phase center variation.

The TW3870/TW3872 covers GPS L2 (1227.6MHz), GLONASS G2

(1248MHz centre), GPS L1/WAAS/EGNOS/MSAS (1575.42MHz),

GLONASS G1 (1602MHz, centre), BeiDou B1 and Galileo E1. (1561

and 1589 MHz).

TW3870 Dimensions (mm)

The TW3872 has a pre-filter which increases the antenna’s

immunity to high amplitude interfering signals, such as LTE and

other cellular signals.

The TW3870/TW3872 is housed in a through-hole mount,

weather-proof enclosure for permanent installations. L Bracket or

Pipe Mount (part numbers 23-0040-0, 23-0065-0 respectively) are

available for non-rooftop installation. A 100mm ground plane is

recommended for non-roof-top installations.

This product is also available in an OEM formats (TW3865,

TW3870E, TW3872E, and TW3868)

Applications

•

Precision GPS position

Dual Frequency RTK receivers

Mission Critical GPS Timing

Military & Security

Network Timing and Synchronization

Features

Benefits

•

Very low Noise Preamp, < 2dB

•

Ideal for L1/L2 RTK surveying systems

Axial ratio L1: ≤1 dB typ. 1.5 dB max.

Tight Phase Center Variation

LNA Gain 35 dB typ.

Low current: 24 mA typ.

ESD circuit protection: 15 KV

Invariant performance from: +2.5 to 16VDC

Great multipath rejection

Increased system accuracy

Great signal to noise ratio

IP67, REACH, and RoHS compliant

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