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发表于 2007-10-20 09:47:34| 字数 1,962| - 中国–广东–韶关 电信
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The main features of our U-Tenna™
- Easy Set-up
简易架设 - User friendly
安装容易
- First of all, disable your built-in WIFI, and then install the driver. Once the driver installed, plug the antenna into your USB port, you can start enjoying wifi.
只需关闭内建网卡放入DRIVER 将USB ADAPTER 插上计算机即可使用 - The coverage is up to 2.2 KM in clear line of sight area.
再空旷地可接收及传输距离长达2.2公里 - Powerful wifi, hot spots searching function.
史上最强网络讯号收寻装置 - No professional knowledge required.
无须任何特殊无线网络知识任何人皆会使用
Our U-tenna is all in one latest product in the wifi market. It is an antenna with built-in USB adapter which covers up to 1.9 KM in clear line of sight area. The USB cable is 5m long. It is the easiest antenna you can think of. It does not require any complicated installation. All you have to do is plug in to your USB port of your laptops or desktops, then you are ready to enjoy wifi world. It comes with a CD driver which is compatible with Mac, Windows XP, Windows Visita.
此天线是用USB 作为连接方式, 内建USB 芯片外接五米长的USB 线材, 减少目前无线网络天线是用RF连接线时所产生的衰减. 简单容易上手即插即用, 只需安装驱动程序即可让您收寻到无数的网络讯号遨游无线网络世界,
本产品可跟Mac, Windows XP, Windows Visita. 等等不同软件共同使用
| | U-Tenna™ Panel Type | Panel Antenna SPEC | USB SPEC | Frequency | 2400 - 2483MHz
| Gain | 14dBi
| Polarization | Vertical
| Beamwidth deg: vertical & horizontal | Horizontal±20° Vertical±20°
| VSWR |  1.5：1
| Impedance: | 50ohm
| Size | L 239×W 239×H 30㎜
| USB cable length | 5meter
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| Standard | IEEE 802.11b/g
| Frequency | 2400 - 2483MHz
| Date Rate | 54/48/36/18/12/11/9/6/5.5/2/1Mbps
| Transmitter Output Power | <16dBm
| Receive Sensitivity | Operating at 11Mbps: @ -80dBm
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| Operating at 54Mbps: @ -70dBm
| Operating System Support | Windows 98se, Me, 2000, XP and Vista
| Regulation | FCC/CE
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|  | | | 地点：台湾某城市某大楼12F | 使用设备：
| 1. Laptop -
ACER Aspire 5051AWXMi 笔记型计算机 | | 2. U-Tenna™ Panel 14dBi 指向性天线 | | 测试流程：请参考下面看图说明。 |
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仅使用USB无线网卡测试讯号
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图1.测试地点在台湾某城市某大楼12F
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图2.以笔记型计算机随插即用来测试产品U-Tenna™ Panel 14dBi
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图3.把天线拿至于顶楼最外侧架设固定
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图4.用计算机测试软件(Network Stumbler)一扫发现34个讯号,笔者要针对收到讯号看是否可以连接上线,再来进行封包的流量测试.
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图5.全向性跟指向性它的收讯就是不太一样,这次的指向性天线扫到的讯号更多而且笔者也是跟连全向性天线所连相同的(corega)11M基地台,开始联机我开启测试封包来测试收讯质量
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 | 图6.因为是指向性天线所以笔者一直在找寻来源端在那个方向,真的让我找到,而且测试出来的数值还真的比全向性的好太多了,开启网络测速页面,测试目前的速度为(1838 K bps)相当于(225 K bytes/sec)
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| 测试结论：
使用U-Tenna可以轻易接收到无线讯号；共享邻居的无线网络可说是经济又实惠，不过我们并不鼓励大家使用未经授权许可的无线讯号。 |
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