Which amateur band includes 146.52 MHz?

The relationship between frequency and wavelength can be calculated using the formula: Wavelength (meters) = 300 / Frequency (MHz). If you divide 300 by 146.52, the result is approximately 2.04 meters, confirming it belongs to the 2-meter band. In the United States, the 2-meter amateur band spans from 144 MHz to 148 MHz. The specific frequency of 146.52 MHz is highly recognizable in the amateur radio community, as it serves as the North American National Simplex Calling Frequency for 2-meter FM. The distractors are incorrect because 6 meters corresponds to the 50 MHz range, 20 meters is around 14 MHz, and 70 centimeters spans 420 to 450 MHz.