Question
In what segment of the 20-meter band are most digital mode operations commonly found?
Answer Options
- A) At the bottom of the slow-scan TV segment, near 14.230 MHz
- B) At the top of the SSB phone segment, near 14.325 MHz
- C) In the middle of the CW segment, near 14.100 MHz
- D) Between 14.070 MHz and 14.100 MHz
Correct Answer: D
Explanation
The 20\text{-meter} band is one of the most popular for digital operations, which are typically found in a dedicated segment to minimize interference with voice and CW modes. The commonly recognized segment for narrow-band digital modes (such as PSK31, RTTY, and FT8) is between 14.070 \text{MHz} and 14.100 \text{MHz}.
Within this segment, specific frequencies are used for various modes (e.g., FT8 is commonly found around 14.074 \text{MHz}). It is important for operators to use this designated area, as placing a digital signal in the middle of a voice segment (which begins at 14.150 \text{MHz}) would be a violation of good amateur practice.
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