A Tallysman Accutenna®
TW3740 / TW3742 High Gain Multi-Constellation Antenna
The TW3740 / TW3742 is a precision high gain GNSS
antenna covering the BeiDou B1, Galileo E1, GPS L1,
GLONASS L1 and SBAS (WAAS, EGNOS, QZSS & MSAS)
frequency band (1557 to 1606 MHz). It employs
Tallysman’s unique Accutenna® technology providing
truly circular polarized signal reception through the
entire bandwidth of the antenna, thereby providing
superior multipath signal rejection. It is especially
designed for precision timing, industrial, agricultural,
military, and other precision applications.
The TW3740 features a three stage Low Noise Amplifier,
comprised of one input LNA per feed, a mid section SAW
to filter the combined output, and a final output gain
stage.
TW3740 / TW3742
Conical radome pictured here. Flat radome also available. Also
available in White
The TW3742 adds an additional pre-filter to provide
extra strong protection from near frequency and strong
harmonic signals.
The TW3740/ TW3742 is housed in a permanent mount
metal base with two nickel coated nuts and a weather-
proof enclosure.
Two options for mounting are
available: an L-bracket (P/N#23-0040-0) or a pipe
mount (P/N#23-0065-0).
Applications
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High Accuracy & Mission Critical Global Positioning
Timing applications
Precision Agriculture, Mining & Construction
Military & Security
Avionics
Law Enforcement & Public Safety
Fleet Management & Asset Tracking
Features
Benefits
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Accutenna® technology
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Circular polarisation throughout the full bandwidth
Great axial ratio: 1 dB typ.
Low noise LNA: 1 dB
High rejection SAW filter
High gain LNA: 40 dB typ.
Low current: 19 mA typ.
Wide voltage input range: 2.5 to 16 VDC
IP67 weather proof housing
Superior multipath signal rejection
Excellent signal to noise ratio
Great out of band signal rejection
Increased system accuracy
Ideal for harsh environments
RoHS and REACH compliant