A mobile location device comprising geographical location means to provide device geographical location information and motion detection means to detect motion of the device, wherein the geographical location means is arranged to provide device geographical location information according to whether motion of the mobile location device is detected by the motion detecting means. The broadcast retransmitting method includes receiving a broadcast signal, detecting an available frequency band, retransmitting the received broadcast signal, and transmitting information regarding the broadcast signal. The resampling circuit is for resampling a modulating frequency command word input to produce a plurality of samples. Specific instruments for inserting the implants prepared according to this invention and for preparing the intervertebral space to receive the implants are also provided. The networking device is configured to authenticate a user to access a user interface for configuring the networking device, where the user is not authenticated based on any password.