| 摘要 |
PROBLEM TO BE SOLVED: To urge a radio terminal to be changed in place or posture so that a radio communication with a ground station can be made in the best communication state by varying blinking cycles of an LED 19 of the radio terminal M according to the reception level of a radio signal sent from the ground station AP. SOLUTION: A transmission/reception and modulation/demodulation part 11 of the radio terminal M sends and receives a radio signal to and from the ground station AP and when a received signal intensity indication value is outputted, a reception sensitivity display control part 18 varies the blinking cycles of a pilot lamp 19 based on the receive signal intensity indication value. The pilot lamp blinks in the specified blinking cycles to let the user know whether the reception sensitivity is good or not. When the user performs input operation to a data setting part 15, a transmit information generation part 14 generates transmit information in response to the input and passes it to a frame control part 12, which generates radio packets for the transmit information and passes them to the transmission/reception and modulation/demodulation part 11, and the transmission/reception and modulation/demodulation part sends the radio packets to the ground station in the form of a radio signal. |
