Time synchronized networks of wireless nodes and the wireless nodes

A wireless slave node for a wireless network system, comprising:

• a tunable radiofrequency (RF) receiver configured to be in wireless communication with a master node and to receive at a slave frequency, the master node being configured to transmit at a master frequency;
• an RF oscillator configured to communicate with the tunable RF receiver, the RF oscillator being configured to communicate an RF oscillator frequency to the RF receiver to determine and tune the slave frequency;
• a signal processor configured to communicate with said tunable RF receiver;
• wherein said signal processor is further configured to provide instructions to said tunable RF receiver to search for reception of a signal from said master node by tuning said slave frequency of said tunable RF receiver within a predetermined search band of frequencies, to provide an initial detected master frequency,
• wherein said signal processor is further configured to instruct said tunable RF receiver to receive a calibration signal at said initial detected master frequency from said master node, said calibration signal containing time information or frequency information, or both,
• wherein said signal processor is further configured to provide a frequency error of said RF oscillator frequency relative to said calibration signal by comparing information from said calibration signal to a corresponding signal from said RF oscillator to tune the RF oscillator frequency to the frequency of the master node to enable communication between said slave node and said master node at said tuned RF oscillator frequency, and
• wherein said tunable RF receiver and said RF oscillator are structured as a single-chip semiconductor device on one semiconductor die.