Which amateur band includes 146.52 MHz?
The correct answer is D: 2 meters. The frequency 146.52 MHz is the national 2-meter FM simplex calling frequency in the United States. The 2-meter amateur band extends from 144.0 to 148.0 MHz and is one of the most popular VHF bands for Technician licensees.
146.52 MHz holds special significance in amateur radio as the designated calling frequency for 2-meter FM simplex operations. Simplex means direct communication without a repeater. This frequency is monitored by many operators, especially when traveling, as it's the standard frequency to make initial contact before moving to another frequency for the conversation. The 2-meter band is excellent for local communications and can provide longer-range contacts during good propagation conditions.
Exam Tip
146.52 = 2-meter calling frequency. Remember: '146.52' is the famous 2-meter simplex frequency. If you see 146 MHz, think 2 meters.
Memory Aid
"**1**46.**5**2 = **2** meters (think '146.52 = 2 meters')"
Real-World Application
You're driving through a new area and want to make contact with local hams. You tune your 2-meter radio to 146.52 MHz and call 'Kilo Alpha One Bravo Charlie, monitoring 146.52.' A local operator responds, and after exchanging call signs, you both move to 146.55 MHz to continue your conversation, leaving 146.52 clear for others to make initial contacts.
FCC Part 97.305Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. 6 meters is 50-54 MHz. 146.52 MHz is much higher in frequency and is in the 2-meter band.
Option B: Incorrect. 20 meters is an HF band (14.000-14.350 MHz), not a VHF band. 146.52 MHz is VHF.
Option C: Incorrect. 70 centimeters is 420-450 MHz. 146.52 MHz is lower in frequency and is in the 2-meter band.
题目解析
The correct answer is D: 2 meters. The frequency 146.52 MHz is the national 2-meter FM simplex calling frequency in the United States. The 2-meter amateur band extends from 144.0 to 148.0 MHz and is one of the most popular VHF bands for Technician licensees. 146.52 MHz holds special significance in amateur radio as the designated calling frequency for 2-meter FM simplex operations. Simplex means direct communication without a repeater. This frequency is monitored by many operators, especially when traveling, as it's the standard frequency to make initial contact before moving to another frequency for the conversation. The 2-meter band is excellent for local communications and can provide longer-range contacts during good propagation conditions.
考试技巧
146.52 = 2-meter calling frequency. Remember: '146.52' is the famous 2-meter simplex frequency. If you see 146 MHz, think 2 meters.
记忆口诀
**1**46.**5**2 = **2** meters (think '146.52 = 2 meters')
实际应用示例
You're driving through a new area and want to make contact with local hams. You tune your 2-meter radio to 146.52 MHz and call 'Kilo Alpha One Bravo Charlie, monitoring 146.52.' A local operator responds, and after exchanging call signs, you both move to 146.55 MHz to continue your conversation, leaving 146.52 clear for others to make initial contacts.
错误选项分析
Option A: Incorrect. 6 meters is 50-54 MHz. 146.52 MHz is much higher in frequency and is in the 2-meter band. Option B: Incorrect. 20 meters is an HF band (14.000-14.350 MHz), not a VHF band. 146.52 MHz is VHF. Option C: Incorrect. 70 centimeters is 420-450 MHz. 146.52 MHz is lower in frequency and is in the 2-meter band.
知识点
2-meter band, 144-148 MHz, Simplex calling frequency, VHF communications
Verified Content
Question from official FCC Technician Class question pool. Explanation reviewed by licensed amateur radio operators.