| 摘要 |
PROBLEM TO BE SOLVED: To provide a keyless entry on-vehicle device which can eliminate deviation of communication frequency caused by a parasitic inductance, and secure excellent LF transmission performance.SOLUTION: A keyless entry on-vehicle device adapted for a keyless entry system of a saddle riding type vehicle comprises: a substrate on which various parts of the keyless entry on-vehicle device are mounted; an LF antenna which transmits an LF signal to determine whether a user has a portable machine or not; an LF antenna drive circuit which drives the LF antenna; and an RF antenna which receives an RF signal to perform a remote control of the saddle riding type vehicle, wherein the LF antenna is mounted on the substrate. |
