TW2505 Embedded Globalstar™ Certified STU Antenna
The TW2505 by Tallysman Wireless is a professional grade, embedded, passive left hand circularly polarized antenna for the 1610 to 1620 MHz frequency band, certified and specifically designed to maximise the performance of the Globalstar™ STU (Simplex Transmit Unit) Modem.
The TW2505 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 TW2505 provides excellent Globalstar™ signal coverage, and comes in a compact circular form factor with a built-in 50 mm diameter ground plane and with a 15 cm RG174 cable.
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 signal 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)||<-20dB|
|ESD Circuit Protection||15 KV air discharge|
|Cross Polarization Rejection||15 dB minimum across the band|
|Mechanicals & Environmental|
|Mechanical Size||50 mm dia. x 7.8 mm H|
|Connectors||Male, SMA straight, MCX right angle or MMCX right angle, other connectors optional|
|Cable||RG174 / 15 cm, custom lengths optional|
|Operating Temp. Range||-40 to +85 °C|
|Attachment Method||Adhesive or screw mount|
|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|
|TW2505 – Globalstar™ STU antenna, 15cm cable, SMA Male||32-2505-0|
|TW2505 – Globalstar™ STU antenna, 15cm cable, MCX R/A||32-2505-5|
|TW2505 – Globalstar™ STU antenna, 15cm cable, MMCX R/A||32-2505-6|
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.