Which of the following synchronizes WSJT-X digital mode transmit/receive timing?
The correct answer is B: Synchronization of computer clocks. Which of the following synchronizes WSJT-X digital mode transmit/receive timing is synchronization of computer clocks. WSJT-X modes require synchronized computer clocks for timing. For amateur radio operators, this is important for WSJT-X operation. Understanding this helps when operating WSJT-X modes.
Exam Tip
WSJT-X timing synchronization = synchronization of computer clocks. Think 'W'SJT-'X' 'T'iming = 'W'orld 'T'ime 'S'ynchronized. WSJT-X modes require synchronized computer clocks for timing. Not frequency shifts, not sync-field, not sync-pulse - just computer clock synchronization.
Memory Aid
"WSJT-X timing synchronization = synchronization of computer clocks. Think 'W'SJT-'X' 'T'iming = 'C'lock 'S'ynchronization. WSJT-X modes require synchronized computer clocks for timing. Important for WSJT-X operation."
Real-World Application
WSJT-X digital mode transmit/receive timing: It's synchronized by synchronization of computer clocks. WSJT-X modes like FT8, FT4, etc., require all stations to have synchronized clocks (typically using NTP - Network Time Protocol) so transmissions occur at the same time. This is how timing is synchronized - computer clock synchronization.
Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. Alignment of frequency shifts isn't how timing is synchronized - computer clock synchronization is used. Frequency shifts isn't timing sync.
Option C: Incorrect. Sync-field transmission isn't how timing is synchronized - computer clock synchronization is used. Sync-field isn't timing sync.
Option D: Incorrect. Sync-pulse timing isn't how timing is synchronized - computer clock synchronization is used. Sync-pulse isn't timing sync.
题目解析
The correct answer is B: Synchronization of computer clocks. Which of the following synchronizes WSJT-X digital mode transmit/receive timing is synchronization of computer clocks. WSJT-X modes require synchronized computer clocks for timing. For amateur radio operators, this is important for WSJT-X operation. Understanding this helps when operating WSJT-X modes.
考试技巧
WSJT-X timing synchronization = synchronization of computer clocks. Think 'W'SJT-'X' 'T'iming = 'W'orld 'T'ime 'S'ynchronized. WSJT-X modes require synchronized computer clocks for timing. Not frequency shifts, not sync-field, not sync-pulse - just computer clock synchronization.
记忆口诀
WSJT-X timing synchronization = synchronization of computer clocks. Think 'W'SJT-'X' 'T'iming = 'C'lock 'S'ynchronization. WSJT-X modes require synchronized computer clocks for timing. Important for WSJT-X operation.
实际应用示例
WSJT-X digital mode transmit/receive timing: It's synchronized by synchronization of computer clocks. WSJT-X modes like FT8, FT4, etc., require all stations to have synchronized clocks (typically using NTP - Network Time Protocol) so transmissions occur at the same time. This is how timing is synchronized - computer clock synchronization.
错误选项分析
Option A: Incorrect. Alignment of frequency shifts isn't how timing is synchronized - computer clock synchronization is used. Frequency shifts isn't timing sync. Option C: Incorrect. Sync-field transmission isn't how timing is synchronized - computer clock synchronization is used. Sync-field isn't timing sync. Option D: Incorrect. Sync-pulse timing isn't how timing is synchronized - computer clock synchronization is used. Sync-pulse isn't timing sync.
知识点
WSJT-X digital mode, Transmit/receive timing, Synchronization of computer clocks, WSJT-X timing
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.