Which of the following frequencies can be used for amateur radio mesh networks?
The correct answer is B: Frequencies shared with various unlicensed wireless data services. Which of the following frequencies can be used for amateur radio mesh networks is frequencies shared with various unlicensed wireless data services. Mesh networks use frequencies shared with unlicensed services (e.g., 2.4 GHz, 5.8 GHz). For amateur radio operators, this is important for mesh network operation. Understanding this helps when setting up mesh networks.
Exam Tip
Mesh network frequencies = frequencies shared with unlicensed wireless data services. Think 'M'esh 'N'etwork = 'M'icrowave/'N'earby unlicensed frequencies. Mesh networks use frequencies shared with unlicensed services (e.g., 2.4 GHz, 5.8 GHz). Not HF, not cable TV, not 60m - just shared unlicensed frequencies.
Memory Aid
"Mesh network frequencies = frequencies shared with unlicensed wireless data services. Think 'M'esh 'N'etwork = 'U'nlicensed frequencies. Mesh networks use frequencies shared with unlicensed services. Important for mesh network operation."
Real-World Application
Amateur radio mesh networks: They use frequencies shared with various unlicensed wireless data services, such as 2.4 GHz (Wi-Fi band) and 5.8 GHz. These frequencies are shared with commercial Wi-Fi and other unlicensed services. This is what frequencies can be used - frequencies shared with unlicensed wireless data services.
FCC Part 97.303Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. HF frequencies where digital communications are permitted isn't correct - mesh networks use VHF/UHF/microwave frequencies shared with unlicensed services. HF isn't used.
Option C: Incorrect. Cable TV channels 41-43 isn't correct - mesh networks use frequencies shared with unlicensed services, not cable TV channels. Cable TV channels isn't correct.
Option D: Incorrect. 60-meter band channel centered on 5373 kHz isn't correct - mesh networks use VHF/UHF/microwave frequencies, not 60 meters. 60 meters isn't used.
题目解析
The correct answer is B: Frequencies shared with various unlicensed wireless data services. Which of the following frequencies can be used for amateur radio mesh networks is frequencies shared with various unlicensed wireless data services. Mesh networks use frequencies shared with unlicensed services (e.g., 2.4 GHz, 5.8 GHz). For amateur radio operators, this is important for mesh network operation. Understanding this helps when setting up mesh networks.
考试技巧
Mesh network frequencies = frequencies shared with unlicensed wireless data services. Think 'M'esh 'N'etwork = 'M'icrowave/'N'earby unlicensed frequencies. Mesh networks use frequencies shared with unlicensed services (e.g., 2.4 GHz, 5.8 GHz). Not HF, not cable TV, not 60m - just shared unlicensed frequencies.
记忆口诀
Mesh network frequencies = frequencies shared with unlicensed wireless data services. Think 'M'esh 'N'etwork = 'U'nlicensed frequencies. Mesh networks use frequencies shared with unlicensed services. Important for mesh network operation.
实际应用示例
Amateur radio mesh networks: They use frequencies shared with various unlicensed wireless data services, such as 2.4 GHz (Wi-Fi band) and 5.8 GHz. These frequencies are shared with commercial Wi-Fi and other unlicensed services. This is what frequencies can be used - frequencies shared with unlicensed wireless data services.
错误选项分析
Option A: Incorrect. HF frequencies where digital communications are permitted isn't correct - mesh networks use VHF/UHF/microwave frequencies shared with unlicensed services. HF isn't used. Option C: Incorrect. Cable TV channels 41-43 isn't correct - mesh networks use frequencies shared with unlicensed services, not cable TV channels. Cable TV channels isn't correct. Option D: Incorrect. 60-meter band channel centered on 5373 kHz isn't correct - mesh networks use VHF/UHF/microwave frequencies, not 60 meters. 60 meters isn't used.
知识点
Amateur radio mesh networks, Frequencies, Unlicensed wireless data services, Shared frequencies
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.