HUBER+SUHNER gas discharge tube protectors make the best of the traditional spark gap protection principle for general applications in electronics and are perfectly suited to RF coaxial line applications. Specially designed gas discharge tubes are a key feature. The available product range of GDT's enables selection in accordance with RF transmission power and optimum protection performance. A very important feature of GDT protectors is the option of DC/AC power outdoor equipment via coaxial cable. Series 3402 products can be used broadband from DC to 2.5 GHz respectively up to 3 GHz for platform 3000. They are generally designed as coaxial feed-throughs which allow the customer to build up a protected area in accordance with the recommended and well-proven protection zone principle of IEC 62305. HUBER+SUHNER GDT protectors are designed such that the gas discharge tubes can be easily exchanged for new operation conditions or replaced in the case of a necessary service.