Question
What is the maximum bandwidth for a data emission on 60 meters?
Answer Options
- A) 60 Hz
- B) 170 Hz
- C) 1.5 kHz
- D) 2.8 kHz
Correct Answer: D
Explanation
The 60-meter band (5 MHz region) is highly restrictive because amateur use is secondary to the Federal Government. The band is channelized, meaning operation is only permitted on five specific center frequencies, and the total bandwidth of any single emission is strictly limited. This is to ensure minimal impact on the primary government users of the band.
For any mode, including digital data emissions, the FCC mandates a maximum bandwidth of 2.8 kHz on the 60-meter channels. This tight restriction prevents wide-band modes and aligns the maximum bandwidth with that of a standard single-sideband (SSB) voice transmission, which is necessary to fit within the coordinated channel structure.
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