It's weak signal propagation JT65. You need software such as Multipsk, WSJT, JT65F to operate. More at:http://www.physics.princeton.edu/pulsar/K1JT/
A little bit different than say PSK31 or RTTY. All you do is send callsigns, signal reports in terms of -number in decibels, e.g., -10 equals -10db, also exchange grid locator and closing QSOs using RRR. If you want to ragchew, JT65 isn't for rag chewing, just exchange call, signal report, grid loc and done.
73, Delwyn KH6DC