TW3870 / TW3872

The TW3870 / TW3872 employs Tallysman’s unique Accutenna® technology covering the GPS L1/L2, GLONASS G1/G2, Galileo E1, BeiDou B1, and SBAS (WAAS, EGNOS & MSAS) frequency bands. It provides truly circular response over its entire bandwidth thereby producing superior multipath signal rejection. This antenna sets a new price/performance standard in its category.

The TW3872 has a pre-filter which increases the antenna’s immunity to high amplitude interfering signals, such as LTE and other cellular signals.

Features

  • Accutenna® Technology
  • Tight Phase Center Variation (PCV)
  • Low noise LNA: 2dB max.
  • Temperature compensating LNAs

Benefits

  • Superior multipath signal rejection
  • Ideal for RTK applications
  • Excellent signal-to-noise ratio
  • Consistent response in all operating
    temperatures

The TW3870 / TW3872 is housed in a through-hole mount, weather-proof enclosure for permanent installations. It is available with either a flat or conical radome in either grey or white. The TW3870 /TW3872 is also available with either a TNC or N-Type connector on the base of the antenna or with a flying lead and a variety of connectors. L-Bracket or Pipe Mount (part numbers 23-0040-0, 23-0065-0 respectively) are available for non-rooftop installation.

The TW3870 / TW3872 is IP67, REACH, and RoHS compliant.

Mechanical:

Architecture: Twin Dual, quadrature feeds
Size: 60mm diameter
Weight: 185g
Enclosure: Radome: EXL9330, Base: Zamak White Metal
Attachment Method: Through hole (M18 x 1 thread)
Environmental: IP67, REACH, and RoHS compliant

Electrical:

LNA Gain: 35dB typ, 32 dB min, each of L1 and L2 Bands,
Supply Current: 18mA typ. at 25°C
Supply Voltage: 2.5 to 16 VDC nominal (12VDC recommended max.)
Noise: 2dB max at 25°C
Axial Ratio, over full bandwidth, both L1 & L2: <2dB typical; 1dB max. at Zenith; 3dB at horizon

For further details, please download the Datasheet.

The attached document (PDF) contains graphical representation of the axial ratios, Phase Center Variation (PCV), Phase Center Offset (PCO), and gain patterns over elevation and rotation (azimuth) as measured by an independent laboratory.

Download TW3870 Performance Measurements

This PDF document shows the plots of the Antex files created by NGS.

Download TW3870 PCV Plots

The raw files can be found on the NGS website here:
Tallysman TW3870 NGS Calibration Files

The TW3870 / TW3872 employs Tallysman’s unique Accutenna® technology covering the GPS L1/L2, GLONASS G1/G2, Galileo E1, BeiDou B1, and SBAS (WAAS, EGNOS & MSAS) frequency bands. It provides truly circular response over its entire bandwidth thereby producing superior multipath signal rejection. This antenna sets a new price/performance standard in its category.

The TW3872 has a pre-filter which increases the antenna’s immunity to high amplitude interfering signals, such as LTE and other cellular signals.

Features

  • Accutenna® Technology
  • Tight Phase Center Variation (PCV)
  • Low noise LNA: 2dB max.
  • Temperature compensating LNAs

Benefits

  • Superior multipath signal rejection
  • Ideal for RTK applications
  • Excellent signal-to-noise ratio
  • Consistent response in all operating
    temperatures

The TW3870 / TW3872 is housed in a through-hole mount, weather-proof enclosure for permanent installations. It is available with either a flat or conical radome in either grey or white. The TW3870 /TW3872 is also available with either a TNC or N-Type connector on the base of the antenna or with a flying lead and a variety of connectors. L-Bracket or Pipe Mount (part numbers 23-0040-0, 23-0065-0 respectively) are available for non-rooftop installation.

The TW3870 / TW3872 is IP67, REACH, and RoHS compliant.

Mechanical:

Architecture: Twin Dual, quadrature feeds
Size: 60mm diameter
Weight: 185g
Enclosure: Radome: EXL9330, Base: Zamak White Metal
Attachment Method: Through hole (M18 x 1 thread)
Environmental: IP67, REACH, and RoHS compliant

Electrical:

LNA Gain: 35dB typ, 32 dB min, each of L1 and L2 Bands,
Supply Current: 18mA typ. at 25°C
Supply Voltage: 2.5 to 16 VDC nominal (12VDC recommended max.)
Noise: 2dB max at 25°C
Axial Ratio, over full bandwidth, both L1 & L2: <2dB typical; 1dB max. at Zenith; 3dB at horizon

For further details, please download the Datasheet.

The attached document (PDF) contains graphical representation of the axial ratios, Phase Center Variation (PCV), Phase Center Offset (PCO), and gain patterns over elevation and rotation (azimuth) as measured by an independent laboratory.

Download TW3870 Performance Measurements

This PDF document shows the plots of the Antex files created by NGS.

Download TW3870 PCV Plots

The raw files can be found on the NGS website here:
Tallysman TW3870 NGS Calibration Files