500 khz qso Norway - England My power is 25 Watts, a homemade transmitter, antenne is a 3.
The 600 meter (or 630 meter) amateur radio band is a frequency band allocated by the International Telecommunication Union (ITU) to amateur radio operators, History · Countries in which operation · See also · References.
Here is a short video showing what I have and can decode on the 600 meter band. Specifically kHz. Kenwood R-600 49 meter Shortwave band