This outdoor wireless antenna is probably the best solution for those who seek for mobility of antenna. The outdoor wireless antenna from LDiO is actually a built in wireless USB adapter with a 12dBi gain external antennas. Powered by USB and use only 500mW of power this outdoor wireless antenna will extend or boost your wireless reception by 10X from the original signal, suitable for long range condition. The advantage of the LDiO outdoor antenna is because it is using usb 2.0 port as a connector, whereby you can use it with your laptop or netbooks and there is no need to attach it to the normal SMA Connector. It supports AP mode and the manufacturer claim that this outdoor wireless antenna can cover up to 1000m.

Full product description
High Power WLAN USB adapter CPE fully supports the features and functional compliance of IEEE 802.11b/g standard. The WLAN USB adapter provides competitive price, high power with good performance to PC & NB linked into wireless network world.

Features
* Long distance USB solution
* High Power up to 27dBm
* Increase your wireless coverage and high throughput
* Weather proof plastic housing
* Operating distance of up to 1000 meters
* Support Software AP mode
* USB 2.0 interface w/ 5M USB extended cable

Specification
Chip set: Realtek RTL8225
Standard: IEEE 802.11b, IEEE 802.11g (Wi-Fi Compatible)
Frequency Band: 2.412GHz ~ 2.484GHz unlicensed ISM band
Data Rate:
-IEEE 802.11b: 1, 2, 5.5, 11Mbps
-IEEE 802.11g: 6, 9, 12, 18, 24, 36, 48, 54Mbps
Output power: 25±2dBm (500 mw)
Power Consumption: Transmit:<600mA Receive:<400mA
Antenna: 12 dBi panel Antenna (RP-SMA)
Operating System: Windows98SE, ME, 2000, XP, SP2, Vista, MAC, Linux

Package Content:
USB CPE set w/ 5M cable
Driver/Manual CD
Stand
Hose Clamp

Operating System:
Win 98SE/ME/2000/XP/x64/Vista
Mac v10.3 and c10.4
Linux Kernel v2.6.6 and after (Support BackTrack 3)

You can get this outdoor wireless antenna here at amazon for here $69.99