| 摘要 |
PROBLEM TO BE SOLVED: To provide a power control method for low-speed frequency hopping radio equipment by which power consumption can be reduced. SOLUTION: The route of a received signal is switched so as to pass either a low noise amplifier 4 or fixed attenuator 26 by using an RF switch 25. Thus, a receiving level is switched over two stages and while the route of the received signal is switched through the fixed attenuator 26, a power source 30 of the low noise amplifier 4 is turned off. |
