HF Antennas for Limited Space Quotes

“Here are the dimensions you should start with for each HF amateur radio frequency band: 10 M (28.5 MHz) 3.5 m (11.5 ft) 12 M (24.9 MHz) 4.0 m (13.2 ft) 15 M (21.1 MHz) 4.73 m (15.5 ft) 17 M (18.1 MHz) 5.51 m (18.1 ft) 20 M (14.1 MHz) 7.08 m (23.2 ft) 30 M (10.1 MHz) 9.89 m (32.44 ft) 40 M (7.1 MHz) 14.06 m (46.14 ft)”
― Claude Jollet, HF Antennas for Limited Space