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Roger GNSS ANTENNE (GNSS-TW-3872-ANT, GNSS-TW-3742-ANT, GNSS-TW-3872-ESM-T)

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GNSS-TW-3872-ANT
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    • Tre modeller, velg fra menyen:
      • GNSS-TW-3372-ANT - Singleband - kun antenne
      • GNSS-TW-3742-ANT - Singleband - kun antenne
      • GNSS-TW-3872-ANT - Dualband -  kun antenne
      • GNSS-TW-3872-ESM-T - Samme antenne som over + justerbar festebrakett

  • GNSS-TW-3372-ANT
    • The GNSS-TW-3372-ANT is a single-band, high-gain GNSS antenna
    • Covers the GPS L1 and GLONASS G1 frequency bands, as well as SBAS.
    • It's a high-gain antenna with a typical LNA gain of 40 dB
    • Includes a pre-filter to provide enhanced protection against high-level sub-harmonic signals, such as LTE.
    • The design of this antenna is notable for its wide bandwidth compared to other single-band antennas, allowing it to cover both GPS and GLONASS signals within a 1 dB bandwidth.
    • It's a popular choice for cost-sensitive and mission-critical positioning and timing applications.

       

      • GNSS-TW-3872-ANT

      • Dual-band GNSS antenna.

      • It's designed for precision dual-frequency positioning and supports a wide range of constellations, including:

        • GPS (L1/L2)

        • GLONASS (G1/G2)

        • Galileo (E1)

        • BeiDou (B1).

      • It features a high-gain
      • Pre-filtered low-noise amplifier (LNA)
      • Typical gain of 35 dB, which helps reject out-of-band signals like LTE.
      • The antenna is housed in a permanent, weatherproof enclosure suitable for long-term outdoor installations.
       

      • GNSS-TW-3742-ANT:

        • Single-band, high-gain GNSS antenna that primarily operates on the L1 frequency band.

        • It covers GPS (L1), GLONASS (G1), Galileo (E1), BeiDou (B1), and SBAS.

        • The antenna has a high-gain LNA with a typical gain of 40 dB, a high-rejection SAW filter, and an additional pre-filter, making it highly effective at rejecting interfering signals.

          It's specifically designed for precision timing and other mission-critical applications.

           

      • GNSS-TW-3872-ESM-T: This is the GNSS-TW-3872-ANT antenna model bundled with a specific mounting accessory.

      • The "ESM-T" stands for "Ext Spacer and Mount," which is an adjustable mounting bracket designed to simplify the installation of Tallysman antennas.

      • The antenna itself is identical to the GNSS-TW-3872-ANT.

         
         

         

       

      Overlapping Features

       

      All three products share several key features due to being from the same manufacturer and product line:

      • Accutenna® Technology: They all use Calian's (formerly Tallysman) patented Accutenna® technology, which provides a truly circular polarized signal reception and excellent multipath rejection.11

         

         

      • Multi-Constellation Support: All three are multi-constellation antennas, meaning they can receive signals from multiple GNSS systems (e.g., GPS, GLONASS, Galileo, BeiDou).12

         

         

      • Pre-filtering: They all include some form of pre-filtering in their LNA design to protect against high-amplitude interfering signals, such as those from cellular networks (e.g., LTE) and Wi-Fi.13

         

         

      • Rugged Enclosure: The antennas are housed in a durable, weatherproof enclosure, typically with an IP67 or IP69K rating, making them suitable for harsh outdoor environments.14

         

         

      • Mounting: The antennas are designed for permanent through-hole mounting.15

         

         

       

      Unique Properties

       

    • GNSS-TW-3872-ANT: Its primary unique feature is its dual-band capability.16 It receives signals on both the L1 and L2 frequencies, making it ideal for applications that require high-precision RTK (Real-Time Kinematic) positioning.17

       
       

    • GNSS-TW-3742-ANT: This antenna's unique property is its focus on the L1 frequency band with a higher LNA gain (40 dB vs. 35 dB for the TW-3872) and a strong pre-filter.18 This makes it particularly well-suited for applications where single-band accuracy and strong out-of-band signal rejection are critical, such as precision timing.19

       

    • GNSS-TW-3872-ESM-T: Its unique feature is that it's a product kit. It includes the GNSS-TW-3872-ANT antenna and the ESM-T mounting accessory, providing a complete solution for easy installation.

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