On the old scope tuning indicators: <https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/RTTY_cross.JPG/220px-RTTY_cross.JPG> I forget, which one is typically the Mark signal? The Vertical or the Horizontal? -- "I am a river to my people." Jeff-1.0 WA6FWI www.foxsmercantile.com