Here are some of the PSK31 frequencies being used. There are probably are others, but I dont have them logged into my search program. (In Khz): 1838.15 3580.15 7035.15 10142.15 14070.15 18100.15 21080.15 24920.15 28120.15 3482.5 3585.0 7072.5 7075.9 14072.5 14075.0 21072.5 21075.0 These are +/- 1.2 Khz: 14068.15 21078.15 28078.15 Regards, RJ