Communication terminal apparatus equipped with a plurality of radios, a radio circuit diagnosis method and a program for the method in which

摘要

PPROBLEM TO BE SOLVED: To grasp a failure condition in a wireless unit, even in an environment without special facilities when a communication terminal apparatus with plural wireless units breaks down. PSOLUTION: In a communication terminal apparatus having a first wireless unit and a second wireless unit, the first wireless unit or the second wireless unit transmits a test signal to the other wireless unit, and the other wireless unit receives the test signal and demodulates the received test signal; if the demodulation result is normal, it is discriminated that modulation and demodulation by the first wireless unit is being carried out in a normal manner. PCOPYRIGHT: (C)2010,JPO&INPIT