Discussion
A frame consists of 4 subframes of one second each. A parameter recorded once per frame is sampled at
Answer: B
Correct answer: 0.25 Hz
A frame of four one-second subframes lasts four seconds, so one sample per frame is
\[ \frac{1}{4} = 0.25\ \mathrm{Hz} \]
- one sample every four seconds. That is the slowest rate the format offers, and it is reserved for parameters that cannot change meaningfully in the interval: fuel quantity, configuration discretes, and identifiers that hardly change at all. Sampling them faster would consume bandwidth needed by the fast parameters.
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