Oleg, you'll be my hero forever if you can do this:

[Viikate]

Please get your facts right Nearmiss.

Commercial AM radio uses mediumwaves. NDBs use longwaves which travel efficiently as a surface waves. By your logic these surface waves cannot be heard from air?!? So how is it possible for planes to navigate by NDBs?

Navigating by commercial AM radio was the primary way back in the old days. IJN planes homed to Pear Harbor by listening Radio Honolulu.

http://en.wikipedia.org/wiki/Radio
One of the first developments in the early 20th century (1900-1959) was that aircraft used commercial AM radio stations for navigation. This continued until the early 1960s when VOR systems finally became widespread (though AM stations are still marked on U.S. aviation charts).

http://en.wikipedia.org/wiki/Non-directional_beacon
NDB navigation consists of two parts - the Automatic Direction Finder (or ADF) equipment on the aircraft that detects an NDB's signal, and the NDB transmitter itself. The ADF can also locate transmitters in the standard AM mediumwave broadcast band (530 kHz to 1700 kHz at 10 kHz increments in the Americas, 531 kHz to 1602 kHz at 9 kHz increments in the rest of the world).

We did add commercial radio station type of "beacon" to 4.10. That's why I was asking the historically correct radio station names in one other thread. It works so that player can copy some sound clips to folders like "samples\Music\Radio\Radio_Honolulu" and when tunes the radio to Radio Honolulu, he can hear these tracks. And also the navigation instruments work as they do with normal NDBs. However there isn't (yet) any way to sync playback of certain track to specific mission and time.