FCC General (2023–2027) — Questions 61–70

G2A09. Why do most amateur stations use lower sideband on the 160-, 75-, and 40-meter bands?

为什么大多数业余电台在 160 米、75 米和 40 米波段使用下边带？

G2A10. Which of the following statements is true of VOX operation versus PTT operation?

与手动按键（PTT）操作相比，声控（VOX）操作的正确说法是哪一项？

G2A11. Generally, who should respond to a station in the contiguous 48 states calling “CQ DX”?

一般而言，位于美国本土 48 州（contiguous 48 states）的电台发出“CQ DX”呼叫时，应由谁来回应？

G2A12. What control is typically adjusted for proper ALC setting on a single sideband transceiver?

在单边带收发信机上，为获得合适的自动电平控制（ALC）设定，通常需要调整哪个控制？

G2B01. Which of the following is true concerning access to frequencies?

关于频率的使用权限，以下哪项是正确的？

G2B02. What is the first thing you should do if you are communicating with another amateur station and hear a station in distress break in?

当你正与另一业余电台通信时，听到有遇险电台插入，你首先应当做什么？

G2B03. What is good amateur practice if propagation changes during a contact creating interference from other stations using the frequency?

如果在通联过程中传播条件发生变化，导致使用同一频率的其他电台产生干扰，良好的业余做法是怎样的？

G2B04. When selecting a CW transmitting frequency, what minimum separation from other stations should be used to minimize interference to stations on adjacent frequencies?

选择连续波（CW）发射频率时，为尽量减少对相邻频率电台的干扰，应与其他电台保持的最小间隔是多少？

G2B05. When selecting an SSB transmitting frequency, what minimum separation should be used to minimize interference to stations on adjacent frequencies?

选择单边带（SSB）发射频率时，为尽量减少对相邻频率电台的干扰，应使用的最小间隔是多少？

G2B06. How can you avoid harmful interference on an apparently clear frequency before calling CQ on CW or phone?

在用连续波（CW）或语音呼叫 CQ 之前，如何避免在看似空闲的频率上造成有害干扰？