Revision:

3.6

precision antennas and components for Global Navigation Satellite System (GNSS) applications. Tallysman’s mission is to support

the needs of a new generation of positioning systems by delivering unprecedented antenna precision at competitive prices. Learn

Contact us:

info@tallysman.com

T: +1 613 591-3131

The TW3865 employs Tallysman’s unique Accutenna technology

providing dual band GPS/QZSS L1 & L2, GLONASS G1 & G2, BeiDou B1,

and Galileo E1 coverage and is especially designed for precision dual

frequency positioning.

The antenna 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 wideband LNA, then band-split for narrow

filtering in each band and further amplified prior to recombination at the

output.

TW3865 offers excellent axial ratio and a tightly grouped phase center.

It covers GPS/QZSS L2 (1227.6 MHz), GLONASS G2 (1248 MHz centre),

GPS/QZSS L1/WAAS/EGNOS/MSAS (1575.42 MHz), GLONASS G1 (1602

MHz, centre), BeiDou B1 (1575.42 MHz), and Galileo E1 (1575.42 MHz).

The OEM antenna is supplied with a standard 60 mm diameter circular

ground plane, with a coaxial cable terminated with your choice of

connector (right angle MCX is shown in the drawing).

Mounting holes are provided for attachment to larger ground planes.

Custom tuning and ground plane options may be available, depending

on purchase level commitment.

Overview

TW3865

When precision matters.®

TW3865 GPS/QZSS L1/L2 + GLONASS G1/G2 + BeiDou B1 + Galileo E1

Frequency Coverage:

L1/L2/G1/G2/E1/B1

Applications

Features

Benefits

• Precision GPS position

• Dual Frequency RTK receivers

• Military & Security

• Network Timing and Synchronization

• Very low Noise Preamp,

• Axial ratio: <2dB typ.; <1 dB at Zenith

• Tight Phase Center Variation

• LNA Gain 28 dB typ.

• Low current: 24 mA typ.

• ESD circuit protection: 15 KV

• Invariant performance from: +2.5 to 12VDC

• Ideal for dual frequency RTK and PPP

surveying systems

• Great multipath rejection

• Increased system accuracy

• Great signal to noise ratio

• RoHS and REACH compliant