33-3712-01-01

## A Tallysman _Accutenna[®]_ TW3710 /TW3712 Multi-Constellation Fixed Mount Antenna 

The TW3710 /TW3712 employs Tallysman’s unique _Accutenna[®]_ technology covering the BeiDou B1, Galileo E1, GPS L1, GLONASS G1 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 SAW 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 performance normally associated with much higher priced antennas. 

TW3710 / TW3712 Dimensions (mm) 

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, weatherproof enclosure for permanent 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. 

## **Applications** 

- High Accuracy & Mission Critical Global Positioning 

- Precision Agriculture, Mining & Construction 

- Military & Security 

- Avionics 

- Law Enforcement & Public Safety 

- Fleet Management & Asset Tracking 

## **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 

## **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 

## TW3710 / TW3712 Multi-Constellation Antenna 

**Specifications** At;  Vcc = 3V, over full bandwidth, T=25°C 

## **Antenna** 

Architecture 2 dB Bandwidth Antenna Gain (with 100mm ground plane) Axial Ratio (over full bandwidth) horizon to horizon 

Dual, Quadrature Feeds 49 MHz 4.75 dBic <1.5 dB typ., <2.5 dB max. 

## **Electrical** 

Filtered LNA Frequency Bandwidth Polarization LNA Gain Gain flatness Out-of-Band Rejection <1500 MHz >1640 MHz 

VSWR (at LNA output) Noise Figure Supply Voltage Range (over coaxial cable) Supply Current ESD Circuit Protection 

1557 to 1606 MHz RHCP 28 dB min. (TW3710), 26dB min. (TW3712) +/- 2 dB, 1557 to 1606 MHz >32 dB (TW3710) >50dB (TW3712) >35 dB >70 dB <1.5:1 typ. 1.8:1 max. 1 dB typ.  (TW3712: 3dB typ.) 2.5 to 16 VDC nominal (12VDC recommended maximum) 15 mA typ,  20mA max. at 85°C. 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 TW3712 – Pre-filtered Multi-Constellation antenna 

33-3710-xx-yy-zzzz 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 guide 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