What aspect of receiver analog-to-digital conversion determines the maximum receive bandwidth of a direct-sampling software defined radio (SDR)?
The correct answer is A: Sample rate. What aspect of receiver analog-to-digital conversion determines the maximum receive bandwidth of a direct-sampling software defined radio (SDR) is sample rate. Sample rate determines maximum bandwidth (Nyquist). For amateur radio operators, this is important for SDR technology. Understanding this helps when working with SDRs.
Exam Tip
Aspect determining maximum receive bandwidth of direct-sampling SDR = sample rate. Think 'S'ample 'R'ate = 'S'ets 'R'eceive bandwidth (Nyquist). Sample rate determines maximum bandwidth (Nyquist). Not sample width, not integral non-linearity, not differential non-linearity - just sample rate.
Memory Aid
"Aspect determining maximum receive bandwidth of direct-sampling SDR = sample rate. Think 'S'ample 'R'ate = 'B'andwidth. Sample rate determines maximum bandwidth (Nyquist). Important for SDR technology."
Real-World Application
The maximum receive bandwidth of a direct-sampling SDR: It's determined by the sample rate. According to Nyquist, maximum bandwidth is half the sample rate. This is the aspect - sample rate determines bandwidth.
Key Concepts
Why Other Options Are Wrong
Option B (Sample width in bits): Incorrect. Sample width in bits doesn't determine bandwidth - sample rate does. Sample width isn't the aspect.
Option C (Integral non-linearity): Incorrect. Integral non-linearity doesn't determine bandwidth - sample rate does. Non-linearity isn't the aspect.
Option D (Differential non-linearity): Incorrect. Differential non-linearity doesn't determine bandwidth - sample rate does. Non-linearity isn't the aspect.
题目解析
The correct answer is A: Sample rate. What aspect of receiver analog-to-digital conversion determines the maximum receive bandwidth of a direct-sampling software defined radio (SDR) is sample rate. Sample rate determines maximum bandwidth (Nyquist). For amateur radio operators, this is important for SDR technology. Understanding this helps when working with SDRs.
考试技巧
Aspect determining maximum receive bandwidth of direct-sampling SDR = sample rate. Think 'S'ample 'R'ate = 'S'ets 'R'eceive bandwidth (Nyquist). Sample rate determines maximum bandwidth (Nyquist). Not sample width, not integral non-linearity, not differential non-linearity - just sample rate.
记忆口诀
Aspect determining maximum receive bandwidth of direct-sampling SDR = sample rate. Think 'S'ample 'R'ate = 'B'andwidth. Sample rate determines maximum bandwidth (Nyquist). Important for SDR technology.
实际应用示例
The maximum receive bandwidth of a direct-sampling SDR: It's determined by the sample rate. According to Nyquist, maximum bandwidth is half the sample rate. This is the aspect - sample rate determines bandwidth.
错误选项分析
Option B (Sample width in bits): Incorrect. Sample width in bits doesn't determine bandwidth - sample rate does. Sample width isn't the aspect. Option C (Integral non-linearity): Incorrect. Integral non-linearity doesn't determine bandwidth - sample rate does. Non-linearity isn't the aspect. Option D (Differential non-linearity): Incorrect. Differential non-linearity doesn't determine bandwidth - sample rate does. Non-linearity isn't the aspect.
知识点
Aspect of receiver ADC, Determines maximum receive bandwidth, Direct-sampling SDR, Sample rate
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.