The 49:1 EFHW (End-Fed Half-Wave) Broadband Transformer is a specialised component used in radio frequency (RF) systems, particularly in amateur radio and portable radio operations. It is designed to efficiently match the impedance between a high-impedance antenna, such as a wire antenna, and the low-impedance input of a transceiver.
The EFHW antenna is a popular choice for portable and field operations due to its simplicity and ease of deployment. It typically consists of a single wire, often half a wavelength long, that is fed against a counterpoise or ground plane. This design allows for multiband operation, covering several amateur radio bands without the need for complex tuning or multiple antennas.
15 окт 2024
