Under what situation may a station transmit third party communications while being automatically controlled?
The correct answer is B: Only when transmitting RTTY or data emissions. Under what situation may a station transmit third party communications while being automatically controlled is only when transmitting RTTY or data emissions. Automatic control stations can only handle third party traffic with RTTY or data, not voice. For amateur radio operators, this is important for automatic control operation. Understanding this helps ensure legal automatic control operation.
Exam Tip
Third party with automatic control = only RTTY or data emissions. Think 'A'utomatic 'C'ontrol = 'A'ccepts 'C'omputer data (RTTY/data only). Automatic control stations can only handle third party traffic with RTTY or data, not voice. Not never, not SSB/CW, not NTIA approval - just RTTY or data.
Memory Aid
"Third party with automatic control = only RTTY or data emissions. Think 'A'utomatic 'C'ontrol = 'R'TTY/'D'ata only. Automatic control stations can only handle third party traffic with RTTY or data, not voice. Important for automatic control operation."
Real-World Application
A station operating under automatic control: It may transmit third party communications only when transmitting RTTY or data emissions. Voice modes (SSB, FM) cannot be used for third party traffic with automatic control - only digital modes (RTTY, data) are allowed. This is the limitation - only RTTY or data emissions for third party traffic with automatic control.
FCC Part 97.115Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. Third party communications aren't never allowed - they're allowed with RTTY or data emissions. Never isn't correct.
Option C: Incorrect. SSB or CW aren't allowed - only RTTY or data emissions are allowed for third party traffic with automatic control. SSB/CW isn't allowed.
Option D: Incorrect. NTIA approval isn't the criterion - only RTTY or data emissions are allowed. NTIA approval isn't the criterion.
题目解析
The correct answer is B: Only when transmitting RTTY or data emissions. Under what situation may a station transmit third party communications while being automatically controlled is only when transmitting RTTY or data emissions. Automatic control stations can only handle third party traffic with RTTY or data, not voice. For amateur radio operators, this is important for automatic control operation. Understanding this helps ensure legal automatic control operation.
考试技巧
Third party with automatic control = only RTTY or data emissions. Think 'A'utomatic 'C'ontrol = 'A'ccepts 'C'omputer data (RTTY/data only). Automatic control stations can only handle third party traffic with RTTY or data, not voice. Not never, not SSB/CW, not NTIA approval - just RTTY or data.
记忆口诀
Third party with automatic control = only RTTY or data emissions. Think 'A'utomatic 'C'ontrol = 'R'TTY/'D'ata only. Automatic control stations can only handle third party traffic with RTTY or data, not voice. Important for automatic control operation.
实际应用示例
A station operating under automatic control: It may transmit third party communications only when transmitting RTTY or data emissions. Voice modes (SSB, FM) cannot be used for third party traffic with automatic control - only digital modes (RTTY, data) are allowed. This is the limitation - only RTTY or data emissions for third party traffic with automatic control.
错误选项分析
Option A: Incorrect. Third party communications aren't never allowed - they're allowed with RTTY or data emissions. Never isn't correct. Option C: Incorrect. SSB or CW aren't allowed - only RTTY or data emissions are allowed for third party traffic with automatic control. SSB/CW isn't allowed. Option D: Incorrect. NTIA approval isn't the criterion - only RTTY or data emissions are allowed. NTIA approval isn't the criterion.
知识点
Third party communications, Automatically controlled, RTTY or data emissions, Automatic control
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.