Which of the following amateur bands is restricted to communication only on specific channels, rather than frequency ranges?
The correct answer is D: 60 meters. The 60-meter band is restricted to communication only on specific channels, rather than frequency ranges. The 60-meter band (5.3305, 5.3465, 5.3570, 5.3715, 5.4035 MHz) consists of five specific channels, not a continuous frequency range. Operators must use these exact frequencies with specific power and mode restrictions. For amateur radio operators, this is unique - all other bands are frequency ranges, but 60 meters is channelized. Understanding this helps ensure legal operation.
Exam Tip
Channelized band = 60 meters only. Think '6'0 meters = '6'0-meter 'C'hannels. Only band with specific channel assignments instead of continuous frequency range. Five specific channels must be used.
Memory Aid
"Channelized band = 60 meters only. Think '6'0 meters = '6'0-meter 'C'hannels. Five specific channels (5.3305, 5.3465, 5.3570, 5.3715, 5.4035 MHz) instead of continuous range. Unique band structure."
Real-World Application
You want to operate on 60 meters. Instead of choosing any frequency in a range, you must use one of five specific channels: 5.3305, 5.3465, 5.3570, 5.3715, or 5.4035 MHz. Each channel has specific power and mode restrictions. This channelized structure is unique among amateur bands.
Key Concepts
Why Other Options Are Wrong
Option A (11 meters): Incorrect. 11 meters isn't an amateur band - it's a CB band. This isn't relevant to amateur radio.
Option B (12 meters): Incorrect. 12 meters is a continuous frequency range, not channelized. General class has access to 24.890-24.930 MHz.
Option C (30 meters): Incorrect. 30 meters is a continuous frequency range (10.100-10.150 MHz), not channelized. It's restricted to CW/digital but not channelized.
题目解析
The correct answer is D: 60 meters. The 60-meter band is restricted to communication only on specific channels, rather than frequency ranges. The 60-meter band (5.3305, 5.3465, 5.3570, 5.3715, 5.4035 MHz) consists of five specific channels, not a continuous frequency range. Operators must use these exact frequencies with specific power and mode restrictions. For amateur radio operators, this is unique - all other bands are frequency ranges, but 60 meters is channelized. Understanding this helps ensure legal operation.
考试技巧
Channelized band = 60 meters only. Think '6'0 meters = '6'0-meter 'C'hannels. Only band with specific channel assignments instead of continuous frequency range. Five specific channels must be used.
记忆口诀
Channelized band = 60 meters only. Think '6'0 meters = '6'0-meter 'C'hannels. Five specific channels (5.3305, 5.3465, 5.3570, 5.3715, 5.4035 MHz) instead of continuous range. Unique band structure.
实际应用示例
You want to operate on 60 meters. Instead of choosing any frequency in a range, you must use one of five specific channels: 5.3305, 5.3465, 5.3570, 5.3715, or 5.4035 MHz. Each channel has specific power and mode restrictions. This channelized structure is unique among amateur bands.
错误选项分析
Option A (11 meters): Incorrect. 11 meters isn't an amateur band - it's a CB band. This isn't relevant to amateur radio. Option B (12 meters): Incorrect. 12 meters is a continuous frequency range, not channelized. General class has access to 24.890-24.930 MHz. Option C (30 meters): Incorrect. 30 meters is a continuous frequency range (10.100-10.150 MHz), not channelized. It's restricted to CW/digital but not channelized.
知识点
60-meter band, Channelized operation, Specific channels, Band structure
Verified Content
Question from official FCC General Class question pool. Explanation reviewed by licensed amateur radio operators.