Does this include the UK or is it just US or worldwide?


Please correct me if I'm wrong.
The messages are simulcasted on various frequencies as well as in different parts of the world. This is done to get worldwide coverage plus to combat the day & night conditions that affect the time of day. The higher frequencies work best during the day while the lower frequencies usually work well at night.

However, it is common during the day that I can hear the same message on about half a dozen different frequencies.
NOTE: I have them programmed in my radio and can quickly change them.

Now here is what puzzles me, although all these transmitters are interconnected, they are identical.
This means that they must be fed via fiber optics, otherwise you would hear time delays.
In simple terms, if one base transmitter is located in the US and another one in Europe and they would be connected by satellite, you would hear a distinct time delay of slightly more than a second. Yet if I listen to my shortwave radio AND the dutch SDR receiver which is half way around the world from me, there is no such delay. The delay would sound like an echo.

Plus they have to be exactly on the same frequency, an error of as little as 10 Hertz would be noticeable.

Altogether, it is quite a technical feat that would work well, if it weren't for those pesky solar flares.