Which of the following frequency ranges are available for phone operation by Technician licensees?

• A. 144.000 MHz to 146.000 MHz
• B. 28.300 MHz to 28.500 MHz
• C. 30.000 MHz to 30.500 MHz
• D. 50.000 MHz to 54.000 MHz

Answer: (B)

The frequency range from 28.300 MHz to 28.500 MHz is designated for phone operation by Technician licensees. This range falls within the 10-meter band, where Technician licensees are permitted to use voice (phone) communications.

This is a segment of the HF spectrum where Technician operators have greater privileges compared to other bands, allowing them to engage in conversations using voice rather than only data or CW. The 10-meter band is particularly popular for phone operation due to its favorable propagation conditions that can vary significantly, allowing for long-distance communication.

The other frequency ranges listed are not suitable for phone operation by Technician licensees. For instance, 144.000 MHz to 146.000 MHz is primarily allocated for VHF (Very High Frequency) operations that are more commonly associated with voice using FM (Frequency Modulation) but are not exclusively for phone operation in the way that 28.300 MHz to 28.500 MHz is. Similarly, 30.000 MHz to 30.500 MHz is not available for phone use at all, as that section is limited to other modes and is not commonly used for voice. Lastly, while 50.000 MHz to 54.000 MHz includes segments for phone operations,