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in E3-2019 by

A: A receiver with an S meter
B: A calibrated field strength meter with a calibrated antenna
C: An SWR meter with a peak-reading function
D: An oscilloscope with a high-stability crystal marker generator

1 Answer

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by (377 points)

This question teaches.  Measure an RF field -> field strength meter; it's teaching that the antenna should be calibrated.  Distractors need to be somehow more plausible, but it would be better to make this a scenario-based question -- "You set up a 500W 6M antenna, and need to determine which areas must be closed off during operation.  How do you most accurately determine those areas?"

A - Model the transmitting antenna using the method of moments
B - Use a field strength meter with a calibrated antenna at low transmit power
C - Divide 500W by the field strength coefficient computed using root-mean-square
D - Consult the transmitting antenna manual for the appropriate calculations

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