| 摘要 |
PROBLEM TO BE SOLVED: To provide a long wave standard radio wave receiver that has a small packaging area and at the same time a small circuit scale, and at the same time can secure excellent reception sensitivity. SOLUTION: The straight-system long wave standard radio wave receiver receives a plurality of kinds of long wave standard radio waves comprising different frequencies including time data, and has an antenna 1 that can change inductance corresponding to the frequency of the long wave standard radio wave by changing a plurality of coil bobbins 12 and 13 being wound to a core 11 by a tuning switch 14. Additionally, a plurality of quartz oscillators oscillated at an oscillation frequency corresponding to the frequency of the long wave standard radio wave are connected to a quartz filter for composing a tuning circuit in parallel. |
