Mapleham Study — HF Bands and Mode Selection

HF Bands and Mode Selection

160 m, 80 m, 40 m — LSB (Lower Sideband); 20 m, 15 m, 10 m — USB (Upper Sideband)
Listen first — always check that a frequency is clear before transmitting
Band Plans — separate modes to minimize interference with SSB, CW, and digital segments