Abstract: A display portion for displaying various messages for a carrier is provided on one side surface of a substantially-rectangular-parallelepiped radio apparatus main body. The display portion is composed of a main display area and a sub display area which is narrower than the main display area. Operation switches are provided at a lower part of one side surface of the radio apparatus main body. On the other hand, a hollow rectangular parallelepiped holster has engagement pieces for pushing switches in correspondence with the operation switches. When it is detected that the operation switches are pushed by the engagement pieces for pushing the switches, display by the display portion is controlled.

Abstract: Portable radio equipment having a display for displaying a message and an illuminating device for back-lighting the display. The illuminating device has a function of back-lighting the display and a function of sensing illumination on the surface of the display. Implemented by an electroluminescent lamp, the illuminating device back-lights the display surely and, yet, without wasteful consumption of power.

Abstract: A watch type paging receiver which may be put on person's wrist by a belt includes a body on which a display device such as a liquid crystal display device is provided. An inverted F-shaped main antenna is implemented by a part of the display device. A loop antenna is provided in addition to the main antenna and implemented by the belt. The main and loop antennas are selectively rendered active depending upon the level of a received signal. Even when the length of the belt is changed to suit person's wrist, accurate matching is established on the basis of the resulting length of the belt. A primary battery in the form of a solar battery and a secondary battery are associated with the receiver body and the belt, respectively. A vibration source which is adapted for tactual alerting forms a part of the belt.