TW3370/TW3372 40dB Wideband GPS/GLONASS Antenna
The TW3370/TW3372 is a high Gain (40dB) GNSS antenna covering the GPS L1, GLONASS G1 and SBAS (WAAS, EGNOS & MSAS) frequency band (1575 to 1606 MHz). It features a patch element with 40% wider bandwidth than previously available in this format. Unlike its competitors, both GPS-L1 and GLONASS signals are included in the 1dB received power bandwidth.
The TW3370/TW3372 has a three stage Low Noise Amplifier with a mid-section SAW. A tight pre-filter is available with the TW3372 to protect against saturation by high level sub- harmonics and L-Band signals making it particularly suitable for timing applications.
The TW3370/TW3372 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||Wideband Single Feed Patch|
|1 dB Bandwidth||31 MHz|
|10dB Return Loss Bandwidth||45 MHz|
|Antenna Element Gain (100mm ground plane)||4.5 dBic|
|Axial Ratio||<4dB @ 1590MHz, 8 dB typical at band-edges|
|Architecture||TW3370: LNA stage 1 -> SAW filter-> LNA stage 2
TW3372: SAW Pre-filter ->LNA stage 1 -> SAW filter-> LNA stage 2
|Filtered LNA Frequency Bandwidth||1574 to 1606 MHz|
|Gain||TW3370 : 41 dB min.
TW3372: 40dB min.
|Gain flatness||+/- 2 dB, 1575 to 1605 MHz|
|VSWR (at LNA output)||<1.5:1|
|Noise Figure||TW3370: 1dB typ.
TW3372: 2.5 dB typ.
|Supply Voltage Range (over coaxial cable)||2.5 to 16VDC nominal (12VDC recommended maximum)|
|Supply Current||20 mA max. @85C|
|ESD Circuit Protection||15 KV air discharge|
|Mechanicals & Environmental|
|Mechanical Size||66.5 mm dia. x 21 mm H|
|Cable (Option)||Custom flying cable assembly available.|
|Operating Temp. Range||-40 to +85 °C|
|Enclosure||Radome: ASA Plastic, Base: Zamak White Metal|
|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:|
|TW3370 – GPS/Glonass Antenna||32-3370-xx-yy|
|TW3372 – GPS/Glonass Antenna||32-3372-xx-yy|
|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.
TW3370 – GPS/GLONASS antenna 33-3370-xx-yy-zzzz TW3372 - Pre-filtered GPS/GLONASS antenna 33-3372-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.