High Frequency – 3 to 30 MHz; Amateur HF bands are:
- 80m (3.5 MHz)
- 60m (5.3 MHz)
- 40m (7 MHz)
- 30m (10.1 MHz)
- 20m (14 MHz)
- 17m (18 MHz)
- 15m (21 MHz)
- 12m (24 MHz)
- 10m (28 MHz)
Learn more:
Wikipedia article
High Frequency – 3 to 30 MHz; Amateur HF bands are:
Learn more:
Wikipedia article