#G2A01🔗
Which mode is most commonly used for voice communications on frequencies of 14 MHz or higher?
哪种模式最常用于 14 MHz 或更高频率的语音通信？
#G2A02🔗
Which mode is most commonly used for voice communications on the 160-, 75-, and 40-meter bands?
哪种模式最常用于 160 米、75 米和 40 米频段的语音通信？
#G2A03🔗
Which mode is most commonly used for SSB voice communications in the VHF and UHF bands?
VHF 和 UHF 频段的 SSB 语音通信最常使用哪种模式？
#G2A04🔗
Which mode is most commonly used for voice communications on the 17- and 12-meter bands?
哪种模式最常用于 17 米和 12 米频段的语音通信？
#G2A05🔗
Which mode of voice communication is most commonly used on the HF amateur bands?
高频业余频段最常用哪种语音通信模式？
#G2A06🔗
Which of the following is an advantage of using single sideband, as compared to other analog voice modes on the HF amateur bands?
与 HF 业余频段上的其他模拟语音模式相比，以下哪项是使用单边带的优势？
#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 米频段上使用下边带？
#G2A10🔗
Which of the following statements is true of VOX operation versus PTT operation?
以下关于 VOX 操作与 PTT 操作的说法哪一项是正确的？
#G2A11🔗
Generally, who should respond to a station in the contiguous 48 states calling “CQ DX”?
一般来说，谁应该响应连续 48 个州中呼叫“CQ DX”的电台？
#G2A12🔗
What control is typically adjusted for proper ALC setting on a single sideband transceiver?
为了在单边带收发器上正确设置 ALC，通常需要调整哪些控制？
