John the weak signal modes JT9, JT65A and WSPR operate between 10137 kHz and
10142 kHz and that's what you ran into. Often they are there but can't be
heard by ear. These modes regularly get QRM'ed by RTTY operators no matter
where they operate so have no tolerance to getting QRM'ed.
I also operate these weak signal digital modes and try to be an ambassador
between the two groups.
I always stay above them when I operate RTTY. There is some RTTY activity
between 10135-10137 kHz but not split and not often, and also regularly as
high as 10145 kHz.
73 & GUD DX,
Thomas F. Giella W4HM
Lakeland, FL, USA
thomasfgiella@gmail.com
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