Remarkable development with the use of microwave cavity has occurred during the last two to three decades, particularly in portable correspondence, TV transmission, modern/local applications, satellite correspondence, telemetry, RADAR/navigational guides, and so forth. This quick improvement inside the microwave which of computerized advances has synergized, bringing about further quickened rate. The paper reports primarily on the frequency tracking system probably be coupled with radio frequency (RF) cavity. For the creating and testing of the tracking system, we have used phase detectors and loop filters throughout. The quality of the tracking system and thus the underlying scanning results were seen to help the realistic tests.