Radio controlled clock

A radio controlled clock comprising a main unit and at least two separate antenna modules selectively connectable to the main unit for co-operation therewith;

• which main unit comprises a body, an LCD display and a plurality of keys provided on the body, an operating circuitry housed within the body, and a plurality of electrical contacts supported by the body;
• the operating circuitry comprising a CPU control unit connected to the display for displaying time and to the keys for control, and at least two decoders connected to the CPU control unit for decoding radio frequency time signals of different carrier frequencies received by the antenna modules respectively, the decoders being connected to the contacts;
• each of the antenna modules comprises a body releasably connectable to the body of the main unit, an operating circuitry housed within the body, and a plurality of electrical contacts supported by the body for connection to the contacts of the main unit respectively when the antenna module is connected to the main unit;
• the operating circuitry comprising a receiver tuned to receive a radio frequency time signal of a specific carrier frequency broadcast in a particular country or region and then send the received signal, via the inter-connected contacts, to the respective decoder of the main unit for enabling the CPU control unit to display local time at the display according to the received signal.