Just saw this:
"3277 khz daily from 1230 to 1240 UTC"
I don't know how accurate the info is, but it is posted in the hfunderground site as being a daily hit.
This is not the same transmission noted in the first post in this thread.
The net noise for the last week has been the fact that the North Koreans included a numbers transmission as part of the Pyongyang Broadcasting System (PBS) Voice of Korea normal shortwave transmission on July 14, at 1545z. This is a return to habits they ended in 2000, where the numbers station known as V15 was included as part of the regular shortwave broadcast of PBS.
However, as far as I can tell, only a single transmission was made, and it was not in the same format as the old V15 transmissions were.
The transmission on 3277 kHz daily at 1230z is a different animal. It is also a numbers transmission, however it is not part of the regular PBS shortwave broadcast. Further, V28 has been active on a daily basis since some time last year.
So we are talking two different things here, the V28 transmission that has been active for some time, and the possible reactivation of V15 as part of scheduled PBS transmissions, which has not happened for 16 years.
It will take time to determine if a V15 like station has actually returned or if the single, so far, reported transmission was fluke, and also to determine if it is the same format or a totally new signal.
T!