The strangest Morse code signal I've heard so far

Chirping Morse code! Yes, chirping! I was treated to a few minutes of bird song on the first ham radio morning of the year listening in on the Utah SDR.

The chirping was courtesy of WA5BDU out of Arkansas. When I asked what the chirping was about he explained he was using a 1960s VFO (variable frequency oscillator) and that while he'd made every effort to make it stable that in that sort of VFO keying the transmitter caused the frequency of the VFO to shift just a bit causing the chirp.

I'm looking forward to building a slug tuned VFO for the Rockmite, (actually a second altered Rockmite). Hopefully we'll hear the same. More on the VFO here.

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