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TW7976 Image

The TW7976 from Tallysman is a Triple-Band GNSS Antenna with support for L-Band correction services. It supports GPS/QZSS-L1/L2, QZSS-L6, GLONASS-G1/G2, Galileo-E1/E6, and BeiDou-B1/B3 constellations. The antenna also supports L6 and E6 bands, Galileo High Accuracy Service (HAS), and QZSS Centimeter Level Augmentation Service (CLAS) correction signals. Regional augmentation services such as WAAS (North America), EGNOS (Europe), MSAS (Japan), GAGAN (India), and high-precision L-band correction services are also supported by this surface mount antenna module.

This antenna 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 before recombining the signal at the output. It is ideal for Real-Time Kinematic (RTK) and Precise Point Positioning (PPP) applications.

The antenna provides out-of-band rejection of over 20 dB and has a 15 kV air discharge ESD circuit protection. This antenna requires a DC supply from 2.5 to 16 V and consumes 24 mA of current. It is available in an IP67-rated weatherproof enclosure that measures 69 (Dia.) x 22 (H) mm and supports direct screw, magnet or adhesive mounting. This antenna is ideal for autonomous vehicle tracking and guidance, Positive Train Control (PTC), Positive Train Location (PTL), precision GNSS positioning, precision agriculture, triple-frequency RTK & PPP receivers, and law enforcement and public safety applications.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
    Tallysman Wireless
  • Description
    Surface Mount GNSS Antenna with Support for L-Band Correction Services

General Parameters

  • Application
    Agriculture, Automotive Vehicle Tracking, GNSS, Public Safety
  • Axial Ratio
    1 to 2 dB
  • Frequency
    1217 to 1606 MHz
  • Gain
    32 dB
  • Bands
    GPS L1 / GALILEO E1 / GLONASS G1 / BeiDou B1 / QZSS L1
  • Industry
  • VSWR
    1.5:1, 1.8:1
  • Mounting
    Magnetic Mount
  • Multi Band
  • Multi Port
  • Dimension
    69 mm (dia.) x 22 mm (h.)
  • Weight
    180 g
  • Operating Temperature
    -40 to 105 Degree C
  • Storage Temperature
    -50 to 105 Degree C
  • RoHS
  • Current
    2.4 mA
  • Noise Figure
    2.5 dB
  • Voltage
    2.5 to 16 V

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