Dear All:
I am looking for the most accurate measuring device to determine the amplitude
of a RF sine wave with the lowest possible uncertainty . For now lets
assume I am trying to measure a 80dBuV sine wave between 30MHz to 1GHz
from a 50 ohm source and other signal componets not at the intended frequency
is at least 80dB down. The standard choices are spectrum analyzer with ~2dB
uncertainty, receiver with ~1dB uncertainty or watt meter with ~0.5dB
uncertainty.
All uncertainty's are assumed to be with an expanded uncertainty of K=2.
Does anyone know of a method or device that can do better than the watt meter?
Let's limit the discussion to a device that costs <$20K.
Thanks,
Keith Hardin
Lexmark International Inc.
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