For my GMT logging, at Walmart I bought an LCD alarm clock with big
numbers for time and date. Too bad there's no stock number on
it. Placing the clock on the K2 top cover just behind the speaker grill,
I discovered a couple db increase in audio and a flattening of audio
response near the CW tone frequency. It was easier to hear CW. A better
acoustic match? Blocked reflections from the wall behind?
Experimentally the effect can be replicated with cupped hands or other
objects to suggest a design for a simple reflector/horn made of wood.
Henry AC5LA
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