In this lab, measurement of various antenna characteristics like Radiation Pattern, Beam width and Gain of main lobe etc. is done using an antenna trainer kit. The working of Doppler radar is studied using radar trainer. Modulation, demodulation and BER measurement is done using CDMA – DSSS Trainer. Analog / digital communication link is established and three signals (audio, video, tone) are transmitted & received simultaneously using a Satellite Communication Trainer.