Using a frequency counter with an accuracy...

Question 1 / 20OPrkMuKXP3mGOev7vHlH

Question 1 of 20OPrkMuKXP3mGOev7vHlH

Using a frequency counter with an accuracy of 5 ppm — which of the following are within legal tolerance for the frequencies of 156.875 MHz and 157.200?

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Question 1 of 20

OPrkMuKXP3mGOev7vHlH

Using a frequency counter with an accuracy of 5 ppm — which of the following are within legal tolerance for the frequencies of 156.875 MHz and 157.200?

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🔍 Key Concepts

• Parts per million (ppm) as a way to express frequency tolerance • How to convert MHz to kHz and apply a 5 ppm tolerance range • Comparing each option’s frequencies to the nominal channel frequencies (156.875 MHz and 157.200 MHz)

💭 Think About

• What is 5 ppm of 156.875 MHz and of 157.200 MHz when expressed in kHz? • Once you know the allowed +/- range in kHz for each frequency, which of the proposed values fall inside that range? • Are the differences between the nominal frequency and each choice’s frequency smaller than, equal to, or larger than the allowed 5 ppm window?

✅ Before You Answer

• Convert both nominal frequencies from MHz to kHz correctly before doing ppm math • Compute 5 ppm × nominal frequency using consistent units (all in Hz or all in kHz) • For each choice, find the difference from the nominal and check whether it is less than or equal to the allowed tolerance in kHz

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Question 1 of 20

Using a frequency counter with an accuracy of 5 ppm — which of the following are within legal tolerance for the frequencies of 156.875 MHz and 157.200?

156,873.562 kHz and 157,198.264 kHz.

156,875.774 kHz and 157.199.321 kHz.

156,876.562 kHz and 157,201.355 kHz.

156,873.336 kHz and 157,201.570 kHz.

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Question 1 / 20OPrkMuKXP3mGOev7vHlH

Question 1 of 20OPrkMuKXP3mGOev7vHlH

Using a frequency counter with an accuracy of 5 ppm — which of the following are within legal tolerance for the frequencies of 156.875 MHz and 157.200?

Back

Question 1 of 20

OPrkMuKXP3mGOev7vHlH

Using a frequency counter with an accuracy of 5 ppm — which of the following are within legal tolerance for the frequencies of 156.875 MHz and 157.200?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed