RADIO HANDBOOK - Maritime New Zealand

10–30kHz Very low frequency VLF 30–300kHz Low frequency LF 300–3000kHz (3MHz) Medium frequency MF 3–30MHz High frequency HF ... times for SSB communications in the HF band. During the daytime, SSB transmissions are not as reliable, due to the sun’s effect on the ionosphere. In general, higher frequencies such

  High, Communication, Frequency, Low frequency, Hf high frequency, Low frequency lf