| 摘要 |
<p>A radio equipment, wherein an attenuator (10) is inserted between antennas (91, 92) and a radio module (2), and output and input sensitivities are raised and lowered simultaneously so as to keep the balance of a radio covering range with an audible range at a constant, and the antenna (91) and the antenna (92) with attenuator are switched over by a switch (8) to increase and decrease the radio coverage range and audible range while keeping the balance of the dynamic radio coverage range with the audible range.</p> |
