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Active Galactic Nuclei (AGN) powered by supermassive black holes launch relativistic jets that emit across the electromagnetic spectrum. Studying this broad emission helps us understand particle acceleration, jet structure, and how energy is released in these extreme environments. In this talk, I will present recent multiwavelength studies that combine radio, X-ray, and gamma-ray observations of different AGN systems. This includes low-frequency uGMRT results from the Palomar-Green (PG) quasar sample, which provide new insights into extended radio emission and its connection to accretion and jet power; broadband modeling of sources such as NGC 1275 and Pictor A, revealing complex jet components and high-energy behavior; and constraints on the gamma-ray emission region in the quasar 3C 380 using radio-gamma correlations and SED modeling. Together, these results show how observations from MHz radio to GeV gamma-rays can uncover the physical conditions within AGN jets and improve our understanding of their emission processes and unification.