[Al (astral highway)]

I'm getting this strange waveform across a loop antenna under construction to match my pantry transmitter.

This works brilliantly with a wire antenna and matching inductor/ capacitor, but I do want it to run with the loop antenna whose physical construction is now finished.

I don't have access to another calibrated signal source yet, but this is what the scope sees when I feed it the 1MHz carrier from my pantry transmitter. The output of that swings around 65V, and is clean, symmetrical, and pretty much perfect, both modulated and unmodulated.

So, this signal is highly attenuated, showing the mismatch I suspected. 1MHz is bang on the money but this isn't a waveform showing a resonant antenna, so what is it?

Any ideas, please? or is it just possibly an artefact of the 'scope?

I'll have access to a calibrated signal source soon, but not today, and I am to too intrigued to wait!

Cheers folks