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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
TW3030 Permanent GPS 28dB Timing Antenna
The TW3030 by Tallysman Wireless is a professional grade, permanent mount GPS L1 antenna, specially designed for professional precision timing applications.
The TW3030 features a custom high performance, wide band patch element, a 30dB gain LNA stage and a high rejection out-of-band SAW filter. It provides ±10MHz bandwidth centred on 1575.42 MHz and covers the GPS L1, Galileo E1 and SBAS (WAAS/EGNOS/MSAS) signals. It provides great axial ratio, excellent circular polarized signal reception, great multipath rejection and great out- of-band signal rejection.
The TW3030 is housed in a compact, industrial- grade weather-proof, domed shaped enclosure. Its radome is available in dark gray or white, it comes with a TNC female connector and a L-bracket for pole mount is available (P/N#23-0040-0).
| Applications | Features | Benefits |
|---|---|---|
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Specifications
Vcc = 3V, over full bandwidth, T=25°C
| Antenna | |
|---|---|
| Antenna Element Gain (100mm ground plane) | 4 dBic at 90° |
| Axial Ratio (over full bandwidth) | 4dB at 90° |
| Electrical | |
|---|---|
| Architecture | 2 stage LNA circuit + a mid section SAW filter. (Pre-filter option available) |
| Frequency Bandwidth | 1575 MHz ± 10 MHz |
| Polarization | RHCP |
| Gain | 30 dB typ. (at 1575.42 MHz) |
| Out-of-Band Rejection < 1560 MHz > 1600 MHz > 1620 MHz |
> 30 dB > 30 dB > 45 dB |
| VSWR (at LNA output) | <1.5:1 |
| Noise Figure | 1 dB typ. |
| Supply Voltage Range | +3.0 to 10 VDC nominal |
| Supply Current | 10 mA typ. |
| ESD Circuit Protection | 15 KV air discharge |
| Mechanicals & Environmental | |
|---|---|
| Mechanical Size | 66.5 mm dia. x 45 mm H |
| Connector/Cable | TNC female bulkhead / Custom cable assembly available |
| Operating Temp. Range | -40 to +85 °C |
| Enclosure | Radome: Dark Gray or White ASA Plastic, Base: Zamak White Metal |
| Weight | 150 g |
| Attachment Method | L-Bracket option: P/N# 23-0040-0 |
| 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 | |
|---|---|
| TW3030 – GPS L1 antenna, dark gray, TNC connector | 32-3030-0-00 |
| TW3030 – GPS L1 antenna, white, TNC connector | 32-3030-0-01 |
Download TW3030 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. © 2011 Tallysman Wireless Inc. All rights reserved.