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Item #: TW8825

TW8825 Dual Band GNSS Antenna

The TW8825 uses Tallysman’s Accutenna technology to provide dual band GPS L1/L5, GLONASS G1, Galileo E1/E5a, and BeiDou B1 coverage and is especially designed for precision dual-frequency positioning where light weight is important.  The TW8825  features a precision tuned, 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.

SKU: 33-8825 Categories: , Manufacturer: Tallysman Wireless

Tallysman TW8825 Dual Band GNSS Antenna

The 52-gram TW8825 offers excellent axial ratio and tight phase center variation (PCV). Features a precision tuned, 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, also includes an LNA pre-filter that provides enhanced protection against high level sub-harmonic signals like LTE and near frequency signals such as WiFi. Is housed in an industrial-grade weather-proof enclosure that can be surface mounted via magnet, screws or adhesive material.

The TW8825 has a pre-filter to increase the antenna’s immunity to high amplitude interfering signals, such as LTE and other cellular signals.

Features

• Very low Noise Preamp, 2.5dB
• Axial ratio: <2dB typ.
• Tight Phase Center Variation
• LNA Gain 26 dB typ.
• Low current: 12 mA typ.
• ESD circuit protection: 15 KV
• Invariant performance from: +2.5 to 16VDC

Benefits

• Lightweight (52g excluding cable and
connector)
• Ideal for L1/L5 RTK surveying systems
• Great multipath rejection
• Increased system accuracy
• Excellent signal to noise ratio
• IP67, REACH, and RoHS compliant

Applications

  • Airborne Unmanned Autonomous Vehicles
  • Precision GPS position
  • Dual Frequency RTK receivers
  • Mission Critical GPS Timing
  • Military & Security
  • Network Timing and Synchronization

Coverage

GPS/QZSS L1/L5, GLONASS G1, Galileo E1/E5a, BeiDou B1/B2a, NavIC L5

Mount

Surface Mount / Magnet / Adhesive

Amplifier Gain

26 dB typ.

Connector Options

Many Options, Please Inquire

 

Tallysman TW8825 Dual Band GNSS Antenna Data Sheet

Tallysman Connector and Cable Options

Tallysman offers a number of connector and cable options for its antennas. Use the guide below to find the available options for your antenna or contact us for help.

Tallysman Part Number Ordering Guide

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