Method for calibrating a test device

The invention relates to is used for detecting the test device is in a mobile communication network providing for operation of the movable or cellular telephone mobile terminal and method of frequency calibration. In turn to realize the high-precision calibration, the invention suggested device based on and data communication between mobile telecommunication network in a mobile terminal, a test device according intercepts a communication of arranged; the intelligent signal of a communication at least partially a testing device for sampling and estimating, a based on the estimation synthesis, a test device and a frequency unit is calibrated. Heater, a data communication mobile terminal pulse train to the signal intelligent analyzing a test device.