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the ionosphere detector is the ionosphere detection equipment, its can be long-term, effective and stable operation, relationship can effectively the ionosphere normal detection. Therefore, it is imperative to research on fault diagnosis of the ionosphere detector, this paper mainly analyses its transmitter, find out the common fault phenomenon and the possible reasons, lay the foundation for the next step research. 1.Summary of transmitter The ionosphere detector transmitter consists of actuator, power amplifier unit transmitter malfunction ionosphere detectors will not work properly. Transmitter for solid state transmitter waveform partly integrated in the system host, detecting signal generated by the excitation source and then to enlarge shortwave power amplifier output, through the antenna radiation outward. Transmitter system, therefore, fault fault is divided into waveform and power amplification. Waveform in DDS&FPGA module, the module failure state of the ionosphere instrument panel will report to the police. Failure in this section, a detailed analysis of a transmitter power amplifier, power amplifier is mainly composed of power amplifier unit, display control unit, power supply units. For all solid state transmitter power amplifier unit is its core components, each power amplifier unit design have complete protection function: motivation, overload, overheating protection. When the fault occurs, a fault on the host LED screen display, as well as audio alarm, and on each power amplifier and the corresponding failure indicator display.

The ionosphere detector transmitter failure analysis