TW2500 Magnet Mount Globalstar™ Certified STU Antenna
The TW2500 by Tallysman Wireless is a professional grade, magnet mount, passive left hand circularly polarized antenna for the 1610 to 1620 MHz frequency band, certified and specifically designed to maximize the performance of the Globalstar™ STU (Simplex Transmit Unit) Modem.
The TW2500 features a high performance dual-feed patch element that provides great axial ratio (3 dB max) over the entire Globalstar™ frequency band, thus signals at the band edges remain truly circular, unlike the response of single feed antennas.
The TW2500 is housed in a compact, industrial-grade weather-proof, magnet mount enclosure, with threaded base holes for screw down attach. It is available with a 50 cm cable, allowing for the STU modem to be mounted out of the elements and reach, and still providing excellent Globalstar™ signal coverage.
Vcc = 3V, over full bandwidth, T=25°C
|Architecture||Dual, Quadrature Feeds|
|Antenna Gain (100mm ground plane)||4.25 dBic|
|Axial Ratio (over full bandwidth)||≤3 dB|
|Architecture||Hybrid 90° phase splitter|
|Frequency Bandwidth||1615 MHz ±10 MHz|
|Gain Flatness||≤1 dB, from 1610 to 1620 MHz|
|VSWR (at antenna)||<1.5:1|
|Return Loss (10 dB bandwidth)||<-20MHz|
|ESD Circuit Protection||15 KV air discharge|
|Mechanicals & Environmental|
|Mechanical Size||57 mm dia. x 15 mm H|
|Connectors||SMA, TNC, MCX Male (Plug). Other connectors optional|
|Cable||RG174 / 50 cm, custom lengths optional|
|Operating Temp. Range||-40 to +85 °C|
|Enclosure||Radome: ASA Plastic, Base: Zamak White Metal|
|Attachment Method||Magnet or permanent (pre-tapped 4 x 6-32UNC)|
|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|
|TW2500 – Globalstar™ STU antenna, 50 cm cable, SMA Male||32-2500-0|
|TW2500 – Globalstar™ STU antenna, 50 cm cable, TNC Male||32-2500-1|
|TW2500 – Globalstar™ STU antenna, 50 cm cable, MCX Male||32-2500-2|
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. © 2010 Tallysman Wireless Inc. All rights reserved.