Bands
Sections of the RF spectrum where groups of stations transmit are known as
bands. The slide ruler dial
shows in blue color some of the most popular, as listed below:
| Band | Frequency, MHz | Type |
| AM broadcast | 0.530 - 1.700 | AM Broadcast |
| 160 meter band | 1.800 - 2.000 | Amateur |
| 120 meter band | 2.300 - 2.495 | Tropical |
| 90 meter band | 3.200 - 3.400 | Tropical |
| 80 meter band | 3.500 - 4.000 | Amateur |
| 75 meter band | 3.900 - 4.000 | International |
| 60 meter band | 4.750 - 5.600 | Tropical |
| 49 meter band | 5.900 - 6.200 | International |
| 41 meter band | 7.100 - 7.300 | International |
| 40 meter band | 7.000 - 7.350 | Amateur |
| 31 meter band | 9.400 - 9.900 | International |
| 30 meter band | 10.100 - 10.150 | Amateur |
| 25 meter band | 11.600 - 12.100 | International |
| 21 meter band | 13.570 - 13.870 | International |
| 20 meter band | 14.000 - 14.350 | Amateur |
| 19 meter band | 15.100 - 15.800 | International |
| 17 meter band | 18.068 - 18.168 | Amateur |
| 16 meter band | 17.480 - 17.900 | International |
| 15 meter band | 18.900 - 19.020 | International |
| 15 meter band | 21.000 - 21.450 | Amateur |
| 13 meter band | 21.450 - 21.850 | International |
| 12 meter band | 24.890 - 24.990 | Amateur |
| 11 meter band | 25.670 - 26.100 | International |
| 10 meter band | 28.000 - 29.700 | Amateur |