TW3430/TW3432 GPS/GLONASS Timing Antennas
The TW3430/TW3432 are precision 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 has a 19mm (3/4 Inch) though hole, permanent mount white-metal base, with an industrial-grade, IP67 compliant conical radome. Two options for pole mounting are available an L-bracket (P/N#23-0040-0) or a pipe mount (P/N#23-0065-0).
Vcc = 3V, over full bandwidth, T=25°C
|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.|
|Architecture||One LNA per feed line, mid section SAW filter|
|Filtered LNA Frequency Bandwidth||1574 to 1606 MHz|
|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|
|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 16 VDC nominal (12VDC recommended maximum)|
|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|
|Cable (Option)||Custom cable assembly available.|
|Operating Temp. Range||-40 to +85 °C|
|Enclosure||Radome: ASA Plastic, Base: Zamak White Metal|
|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|
|Legacy Product Numbers:|
|32-3430-xx-yy||TW3430 – GPS / GLONASS antenna|
|32-3432-xx-yyz||TW3432 – GPS / GLONASS antenna with pre-filter|
|Connector: xx= 00 TNC xx=1 N-Type (premium applies)|
|Radome Colour: yy=00 Dark Grey Conical yy= 01 White Conical yy=10 Dark Grey low profile yy=11 White low profile|
* As a result of a growing product portfolio, Tallysman has rationalized its part number system. No changes have been made to the mechanical or electrical properties of these products. Where administratively possible, please use the following new Part Numbers.
TW3400 – GPS/GLONASS antenna 33-3400-xx-yy-zzzz TW3402 - Pre-filtered GPS/GLONASS antenna 33-3402-xx-yy-zzzz Where xx = connector type yy = radome type and colour and zzzz=cable length in mm (where applicable)
Please refer to the Ordering Guide (http://www.tallysman.com/orderingguide.php) for the current and complete list of available connectors.
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.