Tallysman TW7976 Dual-Band GNSS Antenna with L-band
The TW7976 is a precision-tuned GNSS antenna employs Tallysman's unique Accutenna technology and is designed for precision positioning, covering the GPS/QZSS-L1/L2, QZSS-L6, GLONASS-G1/G2, Galileo-E1/E6, and BeiDou-B1/B3 frequency bands, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], as well as L-Band correction services.
Description
Overview
The TW7976 dual-band GNSS antenna with L-band is ideal for Real-Time Kinematic (RTK) and Precise Point Positioning (PPP) applications, as well as precision agriculture, autonomous vehicle tracking and guidance, and other applications where precision matters.
The TW7976 features a dual-feed circular stacked patch element. The signals from the two orthogonal feeds are summed in quadrature, pre-filtered in a low loss filter to protect against a wide range of potentially interfering signals, amplified in high linearity, wideband LNA, then band-split, tightly filtered, and amplified prior to signal recombination at the output.
This antenna provides superior multipath rejection and axial ratio, a linear phase response, and tight phase centre variation (PCV), while protecting against intermodulation and saturation caused by high-level LTE 700 MHz signals.
The TW7976 is housed in an IP67 weatherproof enclosure that supports direct screw, magnet, or adhesive tape attachment.
Applications
- Autonomous vehicle tracking and guidance
- Positive Train Control (PTC)
- Positive Train Location (PTL)
- Precision GNSS positioning
- Precision agriculture
- Triple-frequency RTK and PPP receivers
- Law enforcement and public safety
Features
- Very low noise preamp (< 2.5 dB typ.)
- Low axial ratio (< 2.0 dB typ.)
- Tight phase centre variation
- High-gain LNA (32 dB typ.)
- Low current (24 mA typ.)
- ESD circuit protection (15 kV)
- Invariant performance from 2.5 to 16 VDC
- IP67, REACH, and RoHS compliant
Benefits
- Excellent multipath rejection
- Increased system accuracy
- Excellent signal-to-noise ratio
Warranty
Calian GNSS (formerly Tallysman Wireless) offers a warranty of 1-3 years on all of it’s products. The warranty ensures that the products are free from defects of materials or workmanship and conform to Calian’s specifications under normal use. Embedded antennas are covered by a one (1) year standard warranty. All housed antennas and accessories (inline amplifiers, splitters, and bias tees) manufactured after January 1, 2020 are covered by a three-year warranty. The warranty is covered in more detail on the Calian GNSS Warranty page.
Why Buy from Us?
In business since 2004, Canal Geomatics is an authorized dealer for Calian GNSS and has established itself as an industry-leading distributor of high-precision positioning products in North America. Our mission is to find the best solution for each unique application and extend premium support to ensure the long-term success of our customers. We offer both volume and reseller discounts for the majority of our product lines.
Ordering
The TW7976 dual-band GNSS antenna with L-band is available through Canal Geomatics. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.
