Question
What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band?
Answer Options
- A) 2.8 kHz
- B) 5.6 kHz
- C) 1.8 kHz
- D) 3 kHz
Correct Answer: A
Explanation
The 60\text{-meter} band is strictly channelized, with five specific channels authorized for use. FCC Rule \S 97.303(\text{h})(1) specifies a maximum bandwidth of 2.8 \text{kHz} for transmissions on these channels. This is a narrow bandwidth designed to accommodate a single-sideband (SSB) voice signal without encroaching on adjacent channels or interfering with the primary government users of this shared spectrum.
In practice, this bandwidth is ideal for standard upper sideband (USB) voice transmissions, which is the only authorized voice emission on the 60\text{-meter} channels. Adherence to this strict bandwidth is a mandatory technical requirement for operating in this shared and restricted band.
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