This PCTEL GPS antenna with integrated receiver (Wi-Sys) appeared on eBay, auction # 252451556351 http://www.antenna.com/apg_products.cgi?id_num=11195 It is a 12-channel unit, NEMA output, that uses the Silicon Labs (Austin, TX) CP-210X UART-USB Bridge chipset. SiLabs Virtual COM Port (VCP) for CP-210X https://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx Magnetic or Screw mount. The $19.95 price includes shipping .... so I have one coming (for bench exam/test) PCTEL 5012D-U datasheet http://www.antenna.com/artifacts/20158205012D-U.pdf greg w9gb Sent from iPad Air