GNSS Products

Documents

pdf Antenna Product Overview

pdf Comparing GNSS Antenna Performance

pdf White Paper – GNSS Antennas

pdf GNSS Antenna Presentation

pdf TW3072 Timing Antenna Install

pdf4000 Series White Paper – New Challenges for GNSS Patch Antennas

pdfTallysman TW4000 Series White Paper

pdfPatch Antennas for the New GNSS (GPS World Article Feb /12)

STMicroelectronics GPS + GLONASS Simulation

Multi-constellation GNSS

TW3400/TW3402 – Datasheet

TW3440/TW3442 GPS/GLONASS Timing Antenna

The TW3440/TW3442 are professional grade 40dB fixed mount Timing antennas covering the GPS L1, GLONASS L1 and SBAS (WAAS, EGNOS & MSAS) frequency bands (1574 to 1606 MHz). They are especially designed for mobile, precision and military applications and offer excellent circular polarized signal reception, multipath rejection and out of band signal rejection.

The TW3440/TW3442 feature a highly circular dual-feed wideband patch element, with a three stage Low Noise Amplifier. This configuration provides excellent axial ratio that is constant across the full frequency band. An optional tight pre-filter is available with part number TW3442 to protect against saturation by high level sub- harmonics and L-Band signals.

The TW3440/TW3442 is housed in a permanent mount industrial-grade weather-proof enclosure, and comes with a TNC Jack (female) connector.

Applications Features Benefits
  • GPS/GLONASS Long cable Mobile/fixed Installations
  • High Accuracy & Mission Critical Global Positioning
  • Precision Agriculture, Mining & Construction
  • Military & Security
  • Avionics
  • Law Enforcement & Public Safety
  • Fleet Management & Asset Tracking
  • Great axial ratio: 1 dB typ.
  • High gain LNA: 40 dB min.
  • Low noise LNA: 1dB/3.5dB typ TW3440/TW3442
  • Available sharp pre-filter (TW3442)
  • ow current: 21 mA typ.
  • Wide supply voltage: 2.5 to 10 VDC
  • Weather proof housing: IP67
  • Available conical radome (Timing Apps)
  • Excellent circular polarization
  • Long Cable Runs
  • Excellent signal to noise ratio
  • Excellent multipath rejection
  • Exceptional out-of-band rejection (TW3442)
  • Increased system accuracy
  • Ideal for harsh environments
  • RoHS compliant

Specifications

Antenna
Architecture Dual, Quadrature Feeds
1 dB Bandwidth 32 MHz
Antenna Gain (with 100mm ground plane) 4.25 dBic
Axial Ratio (over full bandwidth) 1 dB typ., 3 dB max.
Electrical
Filtered LNA Frequency Bandwidth 1574 to 1606 MHz
Polarization RHCP
LNA Gain 40 dB min., 1575.42 to 1606 MHz
Gain flatness +/- 2 dB, 1575 to 1606 MHz
Out-of-Band Rejection
<1500 MHz
<1550 MHz
>1640 MHz
TW3400 TW3402
>32 dB >50 dB
>25 dB >50 dB
>35 dB >75 dB
VSWR (at LNA input) <1.5:1
Noise Figure 1 dB typ. TW3440
3.5dB typ. TW3442
Supply Voltage Range (over coaxial cable) 2.5 to 10 VDC nominal
Supply Current 21 mA typ.
ESD Circuit Protection 15 KV air discharge
Mechanicals & Environmental
Mechanical Size 66.5 mm dia. x 21 mm H
Connectors TNC Jack (female)
Operating Temp. Range -40 to +85 °C
Enclosure Radome: ASA Plastic, Base: Zamak White Metal
Weight 135 g
Attachment Method Permanent ¾” (19mm) through hole mount
Environmental IP67 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
Warranty One year, parts and labour
Ordering Information
TW3440 – GPS/GLONASSAntenna, TNC Jack (female) 32-3440-0
TW3442 – GPS/GLONASS Antenna, TNC Jack (female) 32-3442-0
Download TW3440/TW3442 Datasheet

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. © 2012 Tallysman Wireless Inc. All rights reserved.