On many naval ships it is common practice to switch some systems off before activating others, in order to avoid interference problems. There is no easy and all-encompassing solution to this complex problem, but Thales Nederland has developed an Integrated Sensor & Communication System (ISCS) a mast that will accommodate, depending on the customer's specifications, all radars, IFFs, electro-optical sensors and several communication systems. The benefits of integrating all these systems in one deck structure are huge. First of all, they are designed to operate simultaneously, so that all risk of interference has already been eliminated. Maintenance and repairs are very easy since all sensors can be approached from inside the mast. A crewmember can enter the mast from the deck below and perform his work sheltered in the protective interior of the mast. And thanks to the absence of protective housings in the mast, all maintenance and repair activities are easier to perform. This reduces the crew's workload considerably. As the sensors and communication units in the ISCS structure are positioned close to each other, they do not need their own cooling and power supply systems. Instead, the ISCS has one central power and cooling capability for all units inside. ISCS is a modular concept. Although Thales has developed several types of surveillance and tracking sensors that are optimised for operating in the ISCS, the customer may require the installation of other sensors. In such an event, Thales will assume the role of system integrator and make its expertise available to the customer so that the original advantages of an integrated sensor mast are maintained. With the development of the Integrated Sensor and Communication System, Thales Nederland has once again proven to be the most innovative developer of naval sensor systems worldwide.