Portable radio transceiver system having improved adaptor for transceiver and/or improved receive signal control arrangement.

摘要

In order to enable a diversity reception in a portable radiotelephone without detrimentally increasing the size and weight thereof, an adaptor (14) to which diversity antennas (20,22) are coupled and into which the radiotelephone (10) is inserted in an in-car mode, is provided with a diversity switch and a diversity switch controller. The portable radiotelephone is arranged to switch over from its own antenna to the diversity antennas upon insertion into the adaptor. The portable radiotelephone (10) is further provided with an arrangement for exhibiting a correct receive signal strength irrespective of the fact it is set in the adaptor or used in a portable mode.