These recommended frequencies are in accordance with the IARU bandplan for region 1. There may be differences for regions 2 and 3
1838.150
3580.150
7035.15 for region 1 and region 3, and 7080.15 for region 2 ***
10142.150
14070.150
18100.150
21080.150 (although most activity can be found 10 kHz lower)
24920.150
28120.150
*** This is due to the fact that the 7 MHz band is much wider in region 2 (the Americas), and the IARU bandplan reflects this.