What is the maximum power permitted on the 2200-meter band?
The correct answer is C: 1 watt EIRP (equivalent isotropic radiated power). The maximum power permitted on the 2200-meter band is 1 watt EIRP (equivalent isotropic radiated power). 2200-meter band has very low power limits to prevent interference. For amateur radio operators, this is important for low-band operation. Understanding this helps ensure legal operation.
Exam Tip
2200m band maximum power = 1 watt EIRP. Think '2'200m = '1' watt EIRP. 2200-meter band has very low power limits (1 watt EIRP) to prevent interference. Not 50W PEP, not 100W PEP, not 5W EIRP - just 1 watt EIRP.
Memory Aid
"2200m band maximum power = 1 watt EIRP. Think '2'200m = '1' watt. 2200-meter band has very low power limits (1 watt EIRP) to prevent interference. Very restrictive power limit."
Real-World Application
The 2200-meter band: Maximum power permitted is 1 watt EIRP (Equivalent Isotropic Radiated Power). This is a very low power limit - much lower than other bands. The low limit is to prevent interference to other services. 1 watt EIRP is the maximum - this is the power limit for 2200 meters.
FCC Part 97.313Key Concepts
Why Other Options Are Wrong
Option A (50 watts PEP): Incorrect. 50 watts PEP is way too high - 2200-meter band limit is 1 watt EIRP. 50W is too high.
Option B (100 watts PEP): Incorrect. 100 watts PEP is way too high - 2200-meter band limit is 1 watt EIRP. 100W is too high.
Option D (5 watts EIRP): Incorrect. 5 watts EIRP is too high - 2200-meter band limit is 1 watt EIRP. 5W is too high.
题目解析
The correct answer is C: 1 watt EIRP (equivalent isotropic radiated power). The maximum power permitted on the 2200-meter band is 1 watt EIRP (equivalent isotropic radiated power). 2200-meter band has very low power limits to prevent interference. For amateur radio operators, this is important for low-band operation. Understanding this helps ensure legal operation.
考试技巧
2200m band maximum power = 1 watt EIRP. Think '2'200m = '1' watt EIRP. 2200-meter band has very low power limits (1 watt EIRP) to prevent interference. Not 50W PEP, not 100W PEP, not 5W EIRP - just 1 watt EIRP.
记忆口诀
2200m band maximum power = 1 watt EIRP. Think '2'200m = '1' watt. 2200-meter band has very low power limits (1 watt EIRP) to prevent interference. Very restrictive power limit.
实际应用示例
The 2200-meter band: Maximum power permitted is 1 watt EIRP (Equivalent Isotropic Radiated Power). This is a very low power limit - much lower than other bands. The low limit is to prevent interference to other services. 1 watt EIRP is the maximum - this is the power limit for 2200 meters.
错误选项分析
Option A (50 watts PEP): Incorrect. 50 watts PEP is way too high - 2200-meter band limit is 1 watt EIRP. 50W is too high. Option B (100 watts PEP): Incorrect. 100 watts PEP is way too high - 2200-meter band limit is 1 watt EIRP. 100W is too high. Option D (5 watts EIRP): Incorrect. 5 watts EIRP is too high - 2200-meter band limit is 1 watt EIRP. 5W is too high.
知识点
2200-meter band, Maximum power, 1 watt EIRP, Equivalent isotropic radiated power
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.