AM frequency range in the US ?

[exnihiloest]

The medium wave band has been extended to 1710 Khz in ITU region 2 (America).
The 1620 - 1710 band is not used in Europe except by pirate stations, mainly dutch stations.


In the shortwave band 3-30Mhz, only subbands are allowed for broadcasting but there are some stations broadcasting anywhere (especially religious stations, these people have no respect for mankind whose the rules are dictated by international agreements to avoid interferences).

If you want to use HF with strong levels and the frequency is not critical, use ISM frequencies (http://en.wikipedia.org/wiki/ISM_band). The frequencies can be understood as "trash frequencies". They are reported as being not protected and they are not used for communication.