Included in my recent craigslist purchase were 2 AirPort Extreme cards, but no antennas (of course ). Rather than try using a safety pin or similar Mickey Mouse © solution I searched the web for an antenna. After laughing at the amazing high price of Apple's "T" antenna I purchased 2 - 3" 90° omni Wireless antenna with a MCX male plug for only $7.00 US. The antenna is coming via ePacket delivery from ShenZhen, GD, China - estimated delivery is between Jan. 16 and Jan. 30. Watch for an update on quality & performance after I receive and test the antenna.