6339khz USB
I decoded an
iceberg map with fldigi from WeFAX.
qsstv tried to decode it as well as PD240, but poorly.
10860khz
15720khz
New Zealand SW station!
5615khz
Gander HF Air Traffic HF is used for transatlantic routes.
WWV
I heard WWV, the Fort Collins time signal at 5MHz in Neffsville. It was beeps, chirps, and an announcement.
Busy 40m
I used the fully-extended, large dipole kit and the RTL-SDR to successfully receive lots of 40m signals. It may have been especially busy, since it was Labor Day in the US and Canada. I found FT8 (40m and elsewhere) signals from St Lucia, Slovinia, South America, Cuba, and a little FT4 (40m).
I also found some BPSK31, RTTY/45, and still unidentified digital signals.