TRANSMITTER & RECEIVER MODULES

These FM radio modules from R F Solutions Ltd are selected as it provides good features over other modules available in the market.  These FM radio modules work as a complementary pair which operates at a high frequency of 434MHz.  It is fully shielded which provide better noise immunity whereby surrounding interferences maybe easily picks up during transmission. Its miniature package size also suit the design as it is light weight and occupy lesser space, where it improves the overall ideas of having small and light weight concept of Remote Control Solar Car.  It can be easily implemented by supplying a single low voltage (5V).  The most advantage reason, it can provide an effective transmission distance up to 300m, making it very suitable for remote controlled devices.

At the Receiver module, it is based on the classical superhet single conversion architecture unitizing a PPL xtal referenced oscillator which yields a highly stable IF frequency (10.7 MHz).  This hence, allows use of high Q bandpass filters offering excellent adjacent channel rejection and hence high interference immunity.  The Receiver module also consists of data slicer which is capable of producing a digital square pulses from the received signals at its output pin, which can use to interface with the microcontroller to decode the received signal into analogue signals which can then be used to drive the remote motor circuit.