In this section, I consider a number of radio emitting objects that can be observed by amateur radio astronomers using a modest range of equipment and at last, I will put focus on those objects which we can monitor using our 3.7-meter radio telescope. Apart from astronomical sources, radio emissions generated within the Earth’s Magnetosphere and Ionosphere are intriguing to many amateur radio astronomers but I am not considering them here as it is not that dominant in the band I am observing using 3.7-meter Radio telescope. Also, The strength and emission spectrum of a variety of  these distant radio sources are no considered in detail in my thesis work due to time constraint. The major purpose is to describe the equipment that can be used to detect these sources to illustrate the scale and technical complexity of instruments required to observe some sources.