i have yet to find a fix but heres a temp work around for users with old pci wifi adapter on Mavericks 10.9
(you need to apply the Pre-ML10.8.4 airportd fix and dont touch the wifi icon)
System Preferences -> Network -> Assist me... -> Assistant... -> (Continue) -> I use AirPort to connect to the Internet wirelessly & add your network manually.
my card: D-Link DWL-AG530 Rev.A PCI 168c-0013 Atheros AR5212 A/B/G
it would appear all pci cards are unsupported in mavericks, pci-e only. trying to get my pci adapter working too ...my hackintosh build has 1 pci-e slot and its covered by my video card