kv

HF discussion forum, KV, is the frequency range lower than 30 MHz. Radio amateurs have several bands in them. At the same time, each one differs in the ways of signal propagation, many times also with antennas or technology. The dominant shortwave modulations among radio amateurs are CW telegraphy and SSB phone. However, digital modes such as RTTY are also important, PSK or FT-8.