| 摘要 |
The method of managing receiver means of a transponder activates the transponder periodically during listening periods ( 12 A, 12 B; 14 A, 14 B, 14 C) to detect a carrier and then to receive a message. If the carrier is an unwanted carrier, and thus no message is received, the sensitivity of the transponder for receiving electromagnetic signals is reduced, in particular by reducing the gain of an input amplifier. In a preferred variant, the sensitivity is increased after a given period of reduced sensitivity or a given period of absence of reception of an unwanted carrier.
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