Tallysman TW4327/TW4329 Low-Current GLONASS/GPS Antenna

The TW4327/TW4329 wideband GNSS antenna from Tallysman Wireless is compact and consumes very little power. It is used to cover the 1575 to 1606 MHz frequency bands for tracking GLONASS L1, GPS L1 and EGNOS/MSAS/WAAS SBAS signals.

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Overview

The TW4327/TW4329 wideband GNSS antenna from Tallysman Wireless is compact and consumes very little power. It is used to cover the 1575 to 1606 MHz frequency bands for tracking GLONASS L1, GPS L1 and EGNOS/MSAS/WAAS SBAS signals.

Although it is small, its patch element provides a 40 percent wider bandwidth than most similar products on the market. The low-noise amplifier typically consumes only 1.75mA of power while maintaining consistent attributes over 2.V to 16V supply voltages.

The LNA two-stage amplifier has a high-rejection mid-section SAW filter. Optionally, TW4329 contains a pre-filter that has anti-jamming characteristics. The pre-filter erects a ÛÏBrick-Wall۝ to guard against saturation caused by L-Band signals in the vicinity and high-level sub-harmonics.

TW4327 is able to sustain an outstanding noise figure (21dB nominal gain) even though it is one of the lowest-power units available.

Applications include covert surveillance, military, security, asset tracking and fleet management. Magnetic-mount device operates well in demanding circumstances.

Features

  • 1dB bandwidth for GLONASS/GPS
  • Axial ratio around 2 dB
  • Low noise LNA 1 dB
  • SAW filter with high rejection
  • Very low power requirement
  • Small footprint

Technical Specifications

Antenna architecture: Dual feed wideband
Filtered LNA frequency: Ranges from 1557 up to 1606 mHz
Axial ratio: 6-8 dB over complete bandwidth
Size: 38 mm diagonal by 14.3 mm high
Operating temperature: -40 degrees C to +85 degrees C
Weight: 50 grams

Ordering

The TW4327 and TW4329 antennas from Tallysman are available through Blue Planet Geomatics. Please submit your inquiry using the Request Pricing form if you would like to know more about these antennas.