A Tallysman Accutenna® TW2920 Wideband GPS/GLONASS

A Tallysman Accutenna®
TW2920 Wideband GPS/GLONASS/BeiDou/Galileo + L-Band Antenna
The TW2920 is an Accutenna technology antenna that
covers GPS L1, GLONASS G1, BeiDou B1, Galileo E1,
SBAS (WAAS, EGNOS, GAGAN, & MSAS) and the downlink L-Band (1525 – 1559MHz). The TW2920 provides
superior multi-path signal rejection, a linear phase
response, and tight Phase Centre Variation (PCV). This
antenna is ideal for precision agriculture, autonomous
vehicle tracking and guidance, and other applications
where precision matters.
Dimensions (mm)
The TW2920 features a dual-feed wideband patch
element, plus a low-loss pre-filter followed by a three
stage Low Noise Amplifier (LNA) including an additional
mid-section SAW. This configuration provides excellent
axial ratio across the full frequency band and strong
protection against high level sub-harmonic signals like
LTE and near frequency signals such as WiFi.
The TW2920 has a compact, robust, magnetic mount
housing with a metal base and a UV resistant, tough
wide temperature range plastic radome, and is available
with a variety of connectors. The housing includes a
screw down option, and is available with an adhesive
attachment, without a magnet,
Dimensions (mm)
The TW2920 is also available with an “armoured” cable.
option, with the cable encased in tough corrugated
conduit having a temperature range of -40 to +120C,
excellent chemical resistance, stable bending, high cold
impact strength, and UL94HB flammability standard
High Accuracy & Mission Critical GNSS
Precision Agriculture, Mining & Construction
Military & Security
Low loss Great axial ratio: 1 typ., 3 dB max
Low noise LNA: ≤2.5 dB (including pre-filter)
High rejection SAW filter
Wide voltage input range: 2.5 to 16 VDC
IP67 weather proof housing
Economical price
Excellent multipath rejection
Increased system accuracy
Excellent signal to noise ratio
Great out of band signal rejection
Ideal for harsh environments
RoHS and REACH compliant
TW2920 Pre-filtered GPS/GLONASS/BeiDou/Galileo + L-Band Antenna
Specifications Vcc = 3V, over full bandwidth, T=25°C
1 dB Bandwidth
Antenna Zenith Gain (with 100mm ground plane)
Axial Ratio over Bandwidth @zenith
Dual Feed Patch, Quadrature Feeds
85 MHz
4.25 dBic
1 dB typ,
Filtered LNA Frequency Bandwidth
LNA Gain
Gain flatness
Out-of-Band Rejection
<1465 MHz
>1700 MHz
VSWR (at LNA output)
Noise Figure
Supply Voltage Range (over coaxial cable)
Supply Current
ESD Circuit Protection
Pre-filter ->LNA ->SAW filter-> 2 stage LNA
1510 to 1610 MHz
32 dB min., 1510 to 1610 MHz
+/- 2 dB, 1510 to 1610 MHz
>30 dB
>55 dB
<1.5:1 typ. 1.8:1 max.
≤2.5dB typ.
+2.5 to 16 VDC nominal (12VDC recommended maximum)
18 mA typ, 25mA Q max (85°C).
15 KV air discharge
Mechanicals & Environmental
Mechanical Size
Operating Temp. Range
Attachment Method
57 mm dia. x 15 mm H
-40 to +85 °C
Radome: EXL9330, Base: Zamak white metal
100 g (+13g /m of cable)
Magnet or permanent (pre-tapped 4 x 6-32 UNC)
IP67, REACH, and RoHS compliant
Vertical axis: 50 G, other axes: 30 G
3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G
Ordering Information
TW2920 – Pre-filtered Single Band GNSS antenna: 33-2920-xx-yyy
Where xx = connector type and yyyy = cable length in mm
Please refer to the Ordering Guide (http://www.tallysman.com/wp-content/uploads/Current-Ordering-Guide.pdf) for
the current and complete list of available connectors.
Tallysman Wireless Inc
36 Steacie Drive
Ottawa ON K2K 2A9 Canada
Tel 613 591 3131
Fax 613 591 3121
The information provided herein is intended as a guide only and is subject to change without notice. This document is not to be regarded as a guarantee
of performance. Tallysman Wireless Inc. hereby disclaims any or all warranties and liabilities of any kind. © 2015 Tallysman Wireless Inc. All rights
Rev 1.2
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