The SBT is a three-axis stabilised system equipped with dual-band feed systems for tracking launch vehicles and satellites either from land or ship first time being indigenously developed by ISRO. The 4.6 m antenna reflector consists of 12 panels on a central drum which will be folded during transportation and deployed during operation involving dismantling and re-assembly of its reflector. The antenna reflector is generally stiffness-based design to meet the operational and survival wind forces and traditionally aluminium reflectors are used for ground station antenna applications. However, in the case of transportable system, in addition to stiffness, the weight of the reflector, the ease of assembly and disassembly and repeatability of the surface accuracy are the major factors which drives the system design. The use of CFRP material offers advantage in terms of weight reduction, stiffness and thermal stability. The segmented design offers benefits in terms of transportation and assembly. The design also addresses specific tooling and inspection procedure to ensure the required surface RMS. This is the first time a primary reflector of 4.6 m diameter and its secondary reflector for Axially Displaced Ellipsoid (ADE) geometry made up of CFRP material is developed indigenously. The existing aluminium reflector is replaced with CFRP reflector with overall 40% reduction in mass. The system is realised and tested for its RF performance in both S and X band frequencies. The paper elaborates on the structural design, manufacturing process and performance evaluation, showcasing the advantages of using CFRP reflector for 4.6 m ship borne antenna terminal.