TW3740 / TW3742 Dual Feed Multi-Constellation Timing Antenna Â
The TW3740 and TW3742 multi-constellation GNSS timing antennas are precision high-gain GNSS antennas covering the BeiDou B1, Galileo E1, GPS L1, GLONASS L1 and SBAS (WAAS, EGNOS, QZSS & MSAS) frequency band (1557 to 1606 MHz).
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These antennas employ Tallysmans unique Accutenna™ technology to provide truly circular polarized signal reception through the entire bandwidth of the antenna for superior multipath signal rejection. 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. An optional tight pre-filter is available on the TW3742 to protect against saturation by high level sub-harmonic and L-Band signals.
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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).
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The TW3740 and TW3742 are especially designed for precision timing, industrial, agricultural, military, and other precision applications.
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APPLICATIONS
- High Accuracy & Mission Critical Global Positioning
- Timing applications
- Precision Agriculture, Mining & Construction
- Military & Security
- Avionics
- Law Enforcement & Public Safety
- Fleet Management & Asset Tracking
 FEATURES
- Great axial ratio: 1 typ., 3 dB max
- Low noise LNA: =1 dB
- High rejection SAW filter
- LNA gain: 40 dB typ.
- Low current: 15 mA typ.
- Wide voltage input range: 2.5 to 16 VDC
- IP67 weather proof housing
BENEFITS
- Excellent multipath signal rejection
- Increased system accuracy
- Excellent signal to noise ratio
- Great out of band signal rejection
- Ideal for harsh environments
- RoHS compliant
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