| 摘要 |
A diagnostic device for an antenna includes a coil ( 20 ) or the like connected on the one hand to a reference potential and on the other hand to the output of an amplifier ( 12 ), including two condensers (C 2 , C 3 ) mounted in series, a first condenser (C 2 ) being mounted in parallel with the coil ( 20 ) and the second condenser (C 3 ) being inserted between a terminal of the coil ( 20 ) and the reference potential. The device is configured for the detection of the presence of an antenna in a hands free automotive vehicle system. |
