33-2643A-07

## A Tallysman _Accutenna[®]_ TW2643A Active Ma net Mount Iridium[®] / GNSS Antenna g 

The TW2643A employs Tallysman’s unique _Accutenna_ technology in a magnet mount, active right hand circularly polarized antenna for the **reception** of all of the GNSS constellations (GPS L1/GLONASS G1/ Galileo E1/ BeiDou B1) plus Iridum: 1559 to 1626.5 MHz frequency band.  It is designed to ONLY receive the GNSS and Iridium signals (not transmit).  This antenna is uniquely designed for indoor timing applications relying upon both GNSS and Iridium’s PNT signal. 

The TW2643 features a high performance dualfeed patch element that provides great axial ratio (4dB max, <2dB @ zenith) over the entire Iridium™ + upper GNSS frequency band, thus signals at the band edges remain truly circular, unlike the response of single feed antennas. 

TW2643 Dimensions (mm) 

The TW2643 is housed in a compact, industrialgrade weather-proof, magnet mount enclosure, with threaded base holes for screw down attachment. 

## **Applications** 

- Iridium™ PNT applications+ GNSS 

- Timing (indoor and outdoor) 

- Fleet Management & Asset Tracking 

- Marine & Avionics Systems 

- Law Enforcement & Public Safety 

## **Features** 

- Custom high gain, 5 dBic  dual-feed patch 

- Great axial ratio, <2dB over full bandwidth 

- 15 KV ESD circuit protection 

- IP67 weather proof housing 

- Robust Industrial grade enclosure 

## **Benefits** 

   - Excellent circular polarized signal transmission 

   - Industrial temperature range 

   - Rugged Design 

   - Ideal for harsh environments 

   - RoHS compliant 

- Magnet or screw mount 

## TW2643A Active Magnet Mount Iridium[®] / GNSS Antenna 

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

## **Antenna** 

Architecture Dual, quadrature feeds Antenna Gain (dBic, 100mm ground plane) **B1/E1 L1 G1 Iridium** 3.5 4.5 5 4.5 Axial Ratio (over full bandwidth) ≤2 dB **Electrical** Frequency Bandwidth 1559 to 1626.5 MHz Polarization RHCP LNA Gain 26dB (min) Input voltage 2.5-12VDC Current 18mA Cross Polarization Rejection typically 20dB VSWR (at antenna) <1.5:1 typ ESD Circuit protection 15 KV air discharge Noise Figure 1.5dB typ. **Mechanicals & Environmental** Mechanical Size 57 mm dia. x 15 mm H Cable RG174 / 50 cm, custom lengths optional Operating Temp. Range -40 to +85 °C Enclosure Radome: ASA plastic, Base: Zamak white metal Weight 160 g Attachment Method Magnet or permanent (pre-tapped 4 x 6-32UNC) Environmental IP67, REACH, RED, and RoHS compliant Shock Vertical axis: 50 G, other axes: 30 G Vibration 3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G 

## **Ordering Information** 

TW2643A – Active Iridium™ + GNSS antenna, 33-2643A-xx-yyyy Where xx = connector type and yyyy = cable length in mm 

Please refer to the Ordering Guide (http://www.tallysman.com/wp-content/uploads/Current-OrderingGuide.pdf) for the current and complete list of available 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. © 2018 Tallysman Wireless Inc.  All rights reserved. Rev 1.2