| 摘要 |
A handheld transmitter and/or receiver for use in a frequency band B with an electric power less than or equal to 10 mW, wherein the frequency band is 50 MHz<=B<=500 MHz. A transmitter and/or receiver module is operationally connected to a transmitter and/or receiver antenna. A casing is made of two parts linked to be mutually movable. At least one predominant part of the module is built into one of the casing parts. The other of the two casing parts includes the antenna.
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