I heard this on my new portable, a Tecsun pl660. I was walking the dog & trying to reach the nearest "inductive coupling station" ...a stop sign 4 blocks from my qth that I'v left a test lead connected to for my convenience. I started to hear Vo7 before I was able to reach the quiet stop sign. I was really shocked to hear them as I rarely get them from my qth with "good" radios & antennas. 003 callup & into message. I entered the noise zone where there are 6 streetlights in a 1 block area at 1:51z & when I was in the clear again they were off. Callup was " Ocho...ocho...tres"
btw I am indebted to Desmoface & Token for the heads up on this. I am really pleased to have heard it, especially via a barefoot portable.