OUR TP-LINK TL-WN722N wireless high gain USB adapter allows me to connect my Dell M2400 laptop to an O2 Hotshot two floors away. And the adapter's 4dBi antenna swivels so I can point it directly at the Hotshot's location.
Our tall house has a tall immersion heater three metres away from the O2 Huawei E586 Hotshot. With just the on-board laptop antenna, our concrete floors and copper heater interfered with wifi connectivity. The TP-Link solved all those issues.
The size of this USB component may surprise some readers, as will its cost ($11) and value for money. It uses Align 1-stream technology based on the 802.11n standard. The TL-WN722N provides a better wireless signal than existing wireless 802.11g technology. And its detachable antenna can remarkably boost your signal range and speed. The TP-Link TL-WN722N gives me remarkably good Google Hangouts with one-bar HSDPA signal strength.
We live where a lot of wifi interference exists but it seems that the 802.11n 1-stream band is totally immune to channel conflicts. The vendor uses multi-stream, MIMO-based 802.11n which should ensure the little USB device is positioned on the optimal upgrade path.
I'm already looking at products that might enhance our overall experience, such as those below.
TL-WR1043ND 300 Mbps Wireless N Gigabit Router with three 3dBi detachable antennas. ($55 costs less than RRP via Amazon)
TL-ANT2424B 14dBi 2.4GHz directional antenna. ($46)
TL-ANT2414B 14dBi 2.4 GHz directional antenna ($50)
TL-ANT2408CL 8dBi antenna ($7)
TL-ANT24EC5S low loss CFD-200 5m cable ($15)
Bernie Goldbach has an electronics wishlist.