Telescopic Antenna for the Tecsun PL-990 Radio.
The PL-990 genuine replacement antenna can easily be replaced without disassembling the receiver.
Simply unscrew the mounting screw located in line with the antenna and above the battery compartment, remove the screw and withdraw the antenna from the top of the receiver. Insert the replacement antenna and when fully inserted rotate it until the brass tab (visible though the mounting hole) is clearly visible. Reinsert the screw and tighten. Ensure the conductive washers between the antenna and the mount are retained in position.