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

TW3430/TW3432 – Datasheet

TW3430/TW3432 GPS/GLONASS Timing Antennas

The TW3430/TW3432 are professional grade GNSS antennas covering the GPS L1, GLONASS L1 and SBAS (WAAS, EGNOS & MSAS) frequency bands (1574 to 1606 MHz). They are especially designed for precision timing applications and offer excellent circular polarized signal reception, multipath rejection and out of band signal rejection.

The TW3430/TW3432 feature a highly circular dual-feed wideband patch element, with a two stage Low Noise Amplifier, comprised of one input LNA per feed, a mid-section combining circuit and SAW. This configuration provides an excellent axial ratio that is constant across the full frequency band. An optional tight pre-filter is available with part number TW3432 to protect against saturation by high level sub-harmonics and L-Band signals.

The TW3430/TW3432 are housed in a permanent mount industrial-grade weather- proof enclosures with a conical shaped radome, and a TNC Jack (female) connector.

Applications Features Benefits
  • GPS / GLONASS Fixed Timing
  • High Accuracy & Mission Critical Global Positioning
  • Military & Security
  • Law Enforcement & Public Safety
  • Fleet Management & Asset Tracking
  • Great axial ratio: 1 typ., 3 dB max
  • Low noise LNA: ≤1dB/3.5dB typ TW3430/TW3432
  • High rejection SAW filter
  • Available sharp pre-filter (TW3432)
  • LNA gain: 28 dB/26dB min TW3430/TW3432
  • Low current: 16 mA typ.
  • Wide voltage input range: 2.5 to 5.5 VDC
  • IP67 weather proof housing
  • Available flat-top radome (Mobile Apps)
  • Excellent multipath rejection
  • Increased system accuracy
  • Excellent signal to noise ratio
  • Great out of band signal rejection
  • Ideal for harsh environments
  • RoHS compliant

Specifications

Antenna
Architecture Dual, Quadrature Feeds
1 dB Bandwidth 32 MHz
Antenna Element Gain (100mm ground plane) 4.25 dBic
Axial Ratio (over full bandwidth) 1 dB typ., ≤3 dB max.
Electrical
Architecture One LNA per feed line, mid section SAW filter
Filtered LNA Frequency Bandwidth 1574 to 1606 MHz
Polarization RHCP
LNA Gain 28 dB min., 1575.42 to 1606 MHz, TW3430
26dB Min 1575.42 to 1606 MHz, TW3432
Gain flatness +/- 2 dB, 1575 to 1605 MHz
Out-of-Band Rejection
<1500 MHz
<1550 MHz
>1640 MHz
TW3430 TW3432
>32 dB >50 dB
>25 dB >50 dB
>35 dB >70 dB
VSWR (at LNA output) <1.5:1
Noise Figure 1 dB typ. TW3430
3.5dB typ. TW3432
Supply Voltage Range (over coaxial cable) 2.5 to 10VDC nominal
Supply Current 16 mA typ.
ESD Circuit Protection 15 KV air discharge
Mechanicals & Environmental
Mechanical Size 66.5 mm dia. x 47.5 mm H
Connectors TNC Jack (female)
Cable (Option) Custom cable assembly available.
Operating Temp. Range -40 to +85 °C
Enclosure Radome: ASA Plastic, Base: Zamak White Metal
Weight 140 g
Attachment Method L bracket or 3⁄4” (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
TW3430 – Dark gray radome, TNC connector 32-3430-00-00
TW3430 – white radome, TNC connector 32-3430-00-01
TW3432 – Dark gray radome, TNC connector 32-3432-00-00
TW3432 – white radome, TNC connector 32-3432-00-01
Download TW3430/TW3432 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.