Waterproof GPS Antenna with Magnetic Base - 28dB - 3-5V - SMA Connector and Adapter Included - ozzmaker.com
Passive GPS Antenna uFL - 15mm x 15mm 1 dBi gain : ID 2461 : $3.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Garmin Glareshield GPS Antenna For GI 275 / G5 | Aircraft Spruce
Active L1/L2 GPS Antenna, 3.5" - NavtechGPS
Amazon.com: Geekstory Waterproof Active GPS Antenna Vehicle GPS Navigation with Fakra C Blue Connector for Car GPS Navigation Receiver System : Electronics