Overview
The TW3972 triple-band GNSS antenna with L-band is an ideal antenna for train control sensors, autonomous vehicle tracking & guidance, precision agriculture and other applications where precision matters. The TW3972 antenna provides superior multipath signal rejection, a linear phase response and tight phase centre variation (PCV).
The TW3972 meets all requirements of the Association of American Railroads’ Electronics Environmental Requirements and System Management Standard (S-9401.V1.0). In addition, it is has obtained the EN45545-2, EN50121, EN50155 and EN61373 European railway certifications.
The TW3972 features a precision-tuned, twin circular dual-feed, stacked patch element. The signals from the two orthogonal feeds are combined in a hybrid combiner, amplified in a wide-band LNA, then band-split for narrow filtering in each band and further amplified prior to recombination at the output. The antenna also has a strong pre-filter to mitigate inter-modulated signal interference from LTE and other cellular bands. The TW3972 offers excellent axial ratio and a tightly grouped phase center variation.
The TW3972 is housed in a through-hole mount, weather-proof enclosure for permanent installations. L Bracket or Pipe Mount (part numbers 23-0040-0, 23-0065-0 respectively) are available for non-rooftop installation. A 100 mm ground plane is recommended for non-roof-top installations.
This product is also available in an OEM format (TW3967 for 28 dB and TW3972E for 35 dB).
Applications
- Autonomous vehicle tracking and guidance
- Train control sensor
- Precision GNSS position
- Precision agriculture
- Triple-frequency RTK and PPP receivers
- Safety & security
Features
- Very low noise preamp (< 2.5 dB typ.)
- Low axial ratio (< 2.0 dB typ.)
- Tight phase center variation
- High-gain LNA gain (37 dB typ.)
- Low current (24 mA typ.)
- ESD circuit protection (15 kV)
- Invariant performance from 2.5 to 16 VDC
- IP69K, REACH, RoHS, and S-9401.V1.0 compliant
- EN45545-2, EN50121, EN50155, and EN61373 compliant
Benefits
- Great multipath rejection
- Increased system accuracy
- Great 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 TW3972 triple-band GNSS antenna 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.
TW3972 – Triple-Band GNSS antenna with L-Band Correction – 33-3972-xx-yy-zzzz
Where xx = connector type, yy = shape and colour of radome and zzzz = cable length in mm (where applicable)
