Why is it not legal to transmit a 3 kHz bandwidth USB signal with a carrier frequency of 14.348 MHz?
为什么传输载波频率为 14.348 MHz 的 3 kHz 带宽 USB 信号不合法?
AUSB is not used on 20-meter phone
20米手机不使用USB
BThe lower 1 kHz of the signal is outside the 20-meter band
信号的较低 1 kHz 位于 20 米频带之外
C14.348 MHz is outside the 20-meter band
14.348 MHz 超出 20 米频段
DThe upper 1 kHz of the signal is outside the 20-meter band
信号的较高 1 kHz 位于 20 米频带之外
✓ 正确答案
When using a transceiver that displays the carrier frequency of phone signals, which of the following displayed frequencies represents the lowest frequency at which a properly adjusted LSB emission will be totally within the band?
当使用显示电话信号载波频率的收发器时,以下哪个显示频率代表正确调整的 LSB 发射完全在频带内的最低频率?
AThe exact lower band edge
精确的下带边缘
B300 Hz above the lower band edge
高于下频带边缘 300 Hz
C1 kHz above the lower band edge
高于下频带边缘 1 kHz
D3 kHz above the lower band edge
高于下频带边缘 3 kHz
✓ 正确答案
What is the highest legal carrier frequency on the 20-meter band for transmitting a 2.8 kHz wide USB data signal?
传输 2.8 kHz 宽 USB 数据信号的 20 米频段上的最高合法载波频率是多少?
May an Extra class operator answer the CQ of a station on 3.601 MHz LSB phone?
特级操作员可以在 3.601 MHz LSB 电话上应答电台的 CQ 吗?
AYes, the entire signal will be inside the SSB allocation for Extra class operators
是的,整个信号将位于 Extra 类运算符的 SSB 分配内
BYes, the displayed frequency is within the 75-meter phone band segment
是的,显示的频率在75米电话频段范围内
CNo, the sideband components will extend beyond the edge of the phone band segment
不,边带元件将延伸到手机带段的边缘之外
✓ 正确答案
DNo, US stations are not permitted to use phone emissions below 3.610 MHz
不可以,美国电台不得使用低于 3.610 MHz 的电话发射频率
Who must be in physical control of the station apparatus of an amateur station aboard any vessel or craft that is documented or registered in the United States?
谁必须对在美国登记或注册的任何船舶或工艺品上的业余电台的电台设备进行实际控制?
AOnly a person with an FCC Marine Radio license grant
仅限拥有 FCC 海洋无线电许可证授予的人员
BOnly a person named in an amateur station license grant
仅限业余电台许可证授予中指定的人员
CAny person holding an FCC issued amateur license or who is authorized for alien reciprocal operation
任何持有 FCC 颁发的业余许可证或被授权进行外国人互惠操作的人员
✓ 正确答案
DAny person named in an amateur station license grant or a person holding an unrestricted Radiotelephone Operator Permit
业余电台许可证授予中指定的任何人或持有无限制无线电话操作员许可证的人
What is the required transmit frequency of a CW signal for channelized 60 meter operation?
信道化 60 米操作所需的 CW 信号传输频率是多少?
AAt the lowest frequency of the channel
在信道的最低频率
BAt the center frequency of the channel
在通道的中心频率
✓ 正确答案
CAt the highest frequency of the channel
在频道的最高频率
DOn any frequency where the signal’s sidebands are within the channel
在信号边带位于信道内的任何频率上
What is the maximum power permitted on the 2200-meter band?
2200米频段允许的最大功率是多少?
A50 watts PEP (peak envelope power)
50 瓦 PEP(峰值包络功率)
B100 watts PEP (peak envelope power)
100 瓦 PEP(峰值包络功率)
C1 watt EIRP (equivalent isotropic radiated power)
1 瓦 EIRP(等效各向同性辐射功率)
✓ 正确答案
D5 watts EIRP (equivalent isotropic radiated power)
5 瓦 EIRP(等效各向同性辐射功率)
If a station in a message forwarding system inadvertently forwards a message that is in violation of FCC rules, who is primarily accountable for the rules violation?
如果消息转发系统中的某个站无意中转发了违反 FCC 规则的消息,那么谁对违反规则负有主要责任?
AThe control operator of the packet bulletin board station
数据包公告牌站的主控操作员
BThe control operator of the originating station
始发站主控操作员
✓ 正确答案
CThe control operators of all the stations in the system
系统各站的主控操作员
DThe control operators of all the stations in the system not authenticating the source from which they accept communications
系统中所有站的主控操作员未验证其接受通信的来源
Except in some parts of Alaska, what is the maximum power permitted on the 630-meter band?
除阿拉斯加部分地区外,630 米频段允许的最大功率是多少?
A50 watts PEP (peak envelope power)
50 瓦 PEP(峰值包络功率)
B100 watts PEP (peak envelope power)
100 瓦 PEP(峰值包络功率)
C1 watt EIRP (equivalent isotropic radiated power)
1 瓦 EIRP(等效各向同性辐射功率)
D5 watts EIRP (equivalent isotropic radiated power)
5 瓦 EIRP(等效各向同性辐射功率)
✓ 正确答案
If an amateur station is installed aboard a ship or aircraft, what condition must be met before the station is operated?
如果业余电台安装在船舶或飞机上,那么该电台运行前必须满足什么条件?
AIts operation must be approved by the master of the ship or the pilot in command of the aircraft
其操作须经船长或机长批准
✓ 正确答案
BThe amateur station operator must agree not to transmit when the main radio of the ship or aircraft is in use
业余电台操作员必须同意在船舶或飞机的主无线电使用时不进行发射
CThe amateur station must have a power supply that is completely independent of the main ship or aircraft power supply
业余电台必须有完全独立于主船或飞机电源的电源
DThe amateur station must operate only in specific segments of the amateur service HF and VHF bands
业余电台必须仅在业余业务 HF 和 VHF 频段的特定部分运行
What licensing is required when operating an amateur station aboard a US-registered vessel in international waters?
在国际水域在美国注册的船只上运营业余电台需要什么许可?
AAny amateur license with an FCC Marine or Aircraft endorsement
任何具有 FCC 船舶或飞机认可的业余许可证
BAny FCC- issued amateur license
任何 FCC 颁发的业余许可证
✓ 正确答案
COnly General class or higher amateur licenses
仅限普通级或更高级别的业余执照
DAn unrestricted Radiotelephone Operator Permit
无限制无线电话运营商许可证