What frequency range is referred to as HF?
Объяснение
HF means high frequency and is defined as 3 MHz to 30 MHz, the range that supports regular long-distance ionospheric propagation. The 300 to 3000 kHz range is MF, not HF.
HF means high frequency and is defined as 3 MHz to 30 MHz, the range that supports regular long-distance ionospheric propagation. The 300 to 3000 kHz range is MF, not HF.