Saturday, 6 December 2025

Dual-Band RW4HFN Antenna for 145/430 MHz bands

Dual-Band RW4HFN Antenna for 145/430 MHz bands: This design is a highly practical dual-band RW4HFN antenna that allows amateur radio operators to transmit and receive on both the 2-meter (145 MHz) and 70-centimeter (430 MHz) bands using one compact assembly. This design functions as a center-fed element on the lower band and exhibits multi-mode characteristics on the higher band, providing excellent versatility for fixed or portable operation. It is intended to be fed with a 50 Ohm Coaxial Cable.