What is the maximum deviation from a reading of 462,100,000 Hertz on a frequency counter with a time base accuracy of ± 0.1 ppm?

To determine the maximum deviation from a reading of 462,100,000 Hertz on a frequency counter with a time base accuracy of ± 0.1 parts per million (ppm), it's essential to understand the definition of parts per million and how to apply it in this context.

Parts per million means that for every million units of measurement, there can be a deviation of the specified amount. In this case, with a frequency of 462,100,000 Hertz, we first need to calculate how much ± 0.1 ppm translates into Hertz.

1. First, convert 0.1 ppm into a decimal: 0.1 ppm = 0.1 / 1,000,000 = 0.0000001.

2. Next, multiply this value by the frequency:

• Maximum deviation = 462,100,000 Hz * 0.0000001 = 46.21 Hz.

Thus, the calculated maximum deviation for this frequency counter due to its time base accuracy is 46.21 Hz. This value aligns with the first choice, confirming its correctness.