GNSS Products
Documents
Comparing GNSS Antenna Performance
4000 Series White Paper – New Challenges for GNSS Patch Antennas
Tallysman TW4000 Series White Paper
Patch Antennas for the New GNSS (GPS World Article Feb /12)
Multi-constellation GNSS
TW3400/TW3402 GPS/GLONASS Antenna
The TW3400/TW3402 are professional grade GNSS antenna covering the GPS L1, GLONASS L1 and SBAS (WAAS, EGNOS & MSAS) frequency band (1574 to 1606 MHz). They are especially designed for precision industrial, agricultural and military applications and offers excellent circular polarized signal reception, multipath rejection and out of band signal rejection.
The TW3400/TW3402 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 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. An optional tight pre-filter is available on the TW3402 to protect against saturation by high level sub-harmonic and L- Band signals.
The TW3400/TW3402 is housed in a permanent mount industrial grade weather-proof enclosure, and comes with a TNC Jack (female) connector.
| Applications | Features | Benefits |
|---|---|---|
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Specifications
| Antenna | |
|---|---|
| Architecture | Dual, Quadrature Feeds |
| 1 dB Bandwidth | 30 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 | 28 dB min., 1575.42 to 1606 MHz | ||||||||||||
| Gain flatness | +/- 2 dB, 1575 to 1605 MHz | ||||||||||||
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| VSWR (at LNA input) | <1.5:1 | ||||||||||||
| Noise Figure | 1 dB typ.(TW3400) 3.5 dB typ (TW3402) | ||||||||||||
| Supply Voltage Range (over coaxial cable) | 3 to 12 VDC nominal | ||||||||||||
| Supply Current | 10 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) |
| Cable (Option) | Custom cable assembly available. |
| Operating Temp. Range | -40 to +85 °C |
| Enclosure | Radome: ASA Plastic, Base: Zamak White Metal |
| Weight | 150 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 | |
|---|---|
| TW3400 – GPS/Glonass Antenna, TNC Jack (female) | 32-3400-0 |
| TW3402 – GPS/Glonass Antenna, with pre-filter, TNC Jack (female) | 32-3402-0 |
Download TW3400/TW3402 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.