TW3710 TALLYSMAN | Alldatasheet

Document overview

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Technical content

Features

  • Covers all GNSS Frequencies
  • Great axial ratio: 1 dB typ.
  • Low noise LNA: 1 dB (TW3710)
  • High rejection SAW filter
  • High gain LNA: 28 dB typ. (TW3710)
  • Low current: 15 mA typ.
  • Wide voltage input range: 2.5 to 16 VDC
  • IP67 weather proof housing Benefits
  • Excellent circular polarisation
  • Excellent multipath rejection
  • Excellent signal to noise ratio
  • Great out of band signal rejection
  • Increased system accuracy
  • Ideal for harsh environments
  • RoHS and REACH compliant The TW3710 /TW3712 employs Tallysman’s unique Accutenna® technology covering the BeiDou B1, Galileo E1, GPS L1 , GLONASS G 1 and SBAS (WAAS , QZSS, EGNOS & MSAS) frequency band (1557 to 1606 MHz). It provides truly circular response over its entire bandwidth thereby producing superior multipath signal rejection. It is especially suitable for high accuracy applications, and also offers high out of band signal rejection. Both antennas feature a dual -feed wideband patch element, with a two stage Low Noise Amplifier, comprised of one input LNA per feed, a mid section SA W to filter the combined output, and a final output gain stage. This configuration provides excellent axial ratio that is constant across the full frequency band along with a superb phase linear response and tight phase centre variation providing performa nce normally associated with much higher priced antennas. The TW3712 has a pre -filter to protect against front end saturation by strong near frequency or harmonic signals. The antennas are housed in a through -hole mount, weather- proof enclosure for permane nt installations. L Bracket or Pipe Mount adapters (part numbers 23 -0040-0, 23 -0065-0 respectively) are available for non -rooftop installation. A 100mm ground plane is recommended for non -roof-top installations. TW3710 / TW3712 Dimensions (mm)

TW3710 / TW3712 Multi-Constellation Antenna Specifications At; Vcc = 3V, over full bandwidth, T=25°C Antenna Architecture Dual, Quadrature Feeds 2 dB Bandwidth 49 MHz Antenna Gain (with 100mm ground plane) 4.75 dBic Axial Ratio (over full bandwidth) horizon to horizon <1.5 dB typ., <2.5 dB max. Electrical Filtered LNA Frequency Bandwidth 1557 to 1606 MHz Polarization RHCP LNA Gain 28 dB min. (TW3710), 26dB min. (TW3712) Gain flatness +/- 2 dB, 1557 to 1606 MHz Out-of-Band Rejection <1500 MHz >32 dB (TW3710) >50dB (TW3712) >1640 MHz >35 dB >70 dB VSWR (at LNA output) <1.5:1 typ. 1.8:1 max. Noise Figure 1 dB typ. (TW3712: 3dB typ.) Supply Voltage Range (over coaxial cable) 2.5 to 16 VDC nominal (12VDC recommended maximum) Supply Current 15 mA typ, 20mA max. at 85°C. ESD Circuit Protection 15 KV air discharge Mechanicals & Environmental Mechanical Size 66.5 mm dia. x 21 mm H Operating Temp. Range -40 to +85 °C Storage Temperature Range -45 to +85 °C Enclosure Radome: EXL9330, Base: Zamak White Metal Weight 150 g Attachment Method Permanent ¾” (19mm) through hole mount Environmental IP67, RoHS, REACH, and RED compliant Shock Vertical axis: 50 G, other axes: 30 G Vibration 3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G Salt Spray MIL-STD-810F Section 509.4 Warranty One year, parts and labour

Ordering Information

TW3710 – Multi-Constellation antenna 33-3710-xx-yy-zzzz TW3712 – Pre-filtered Multi-Constellation antenna 33-3712-xx-yy-zzzz Where xx = connector type, yy = shape and colour of radome, and zzzz = length of cable in mm (where applicable) Please refer to the Ordering Guide (http://www.tallysman.com/wp-content/uploads/Current-Ordering-Guide.pdf) for the current and complete list of available radomes and connectors.

36 Steacie Drive, Ottawa ON K2K 2A9 Canada

Tel +1 613 591 3131 Fax 613 591 3121 sales@tallysman.com The information provided herein is intended as a g uide only and is subject to change without notice. This document is not to be regarded as a guarantee of performance. Tallysman Wireless Inc. hereby disclaims any or all warranties and liabilities of any kind. © 2015 Tallysman Wireless Inc. All rights reserved. Rev 3.6