ARRL Technician Practice Exam

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If a frequency readout calibrated in megahertz shows a reading of 3.525 MHz, what would the reading be when calibrated in kilohertz?

  1. 352.5 kHz

  2. 35.25 kHz

  3. 3525 kHz

  4. 3.525 kHz

The correct answer is: 3525 kHz

To convert a frequency reading from megahertz (MHz) to kilohertz (kHz), you need to keep in mind the relationship between these units of measurement. One megahertz is equivalent to 1,000 kilohertz. Therefore, when you take a frequency of 3.525 MHz and convert it to kilohertz, you multiply by 1,000. Performing the conversion: 3.525 MHz × 1000 = 3525 kHz This calculation shows that the correct reading in kilohertz is 3525 kHz. Understanding this conversion process is crucial in radio communication, as different devices and systems may display frequencies using various units, and knowing how to convert between them helps in proper operation and frequency management.

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