Compensating for oscillator drift in wireless mesh networks

A node, comprising:

• a memory storing a calibration application;
• and
• a processor that, upon executing the calibration application, performs the steps of:
• obtaining a first drift measurement from an active frequency control (AFC) module, wherein the first drift measurement indicates a first amount of drift associated with a first oscillator,
• determining that the first drift measurement is greater than a saturation boundary associated with the AFC module, wherein the AFC module does not compensate for drift exceeding the first saturation boundary, and
• adjusting a high frequency output associated with the first oscillator to compensate for at least a portion of the first amount of drift.

A system, comprising:

• a first node that transmits a data signal;
• and
• a second node that receives the data signal from the first node and performs the steps of:
• obtaining a first drift measurement from an active frequency control (AFC) module, wherein the first drift measurement indicates a first amount of drift associated with a first oscillator;
• determining that the first drift measurement is greater than a saturation boundary associated with the AFC module, wherein the AFC module does not compensate for drift exceeding the first saturation boundary;
• and
• adjusting a high frequency output associated with the first oscillator to compensate for at least a portion of the first amount of drift.