Catu daya utama

Most RF amplifiers need Mains power supply rated at a voltage of 12-15V, 48V or lately also 62-65V. Check your transmitter, pallet or amplifier specifications and make sure you are using power supply of correct voltage rating.

Amplifier yang lebih kuat membutuhkan lebih banyak daya dan arus. Anda dapat menghitung peringkat daya dengan mengalikan arus dan tegangan: P = U * I. Misalnya catu daya dengan nilai 48V yang dapat memasok arus 10A memiliki peringkat daya: 48V * 10A* 480W. However be careful, a 300W FM band amplifier will typically need mains power supply rated at 450-600W. Why? Amplifiers are not 100% efficient, a part of power is lost as heat.