Radio Amateur Quiz Canadian License

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Question A-003-005-011

What is the best signal source to connect to the vertical input of an oscilloscope for checking the quality of a transmitted signal?

Correct Answer

The RF output of the transmitter through a sampling device

Explanation

To safely view the transmitter's RF output on an oscilloscope, a sampling device (e.g., RF sampler, directional coupler, or very high attenuation probe) is needed to reduce the high power RF signal to a safe level for the scope input.

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