Dave Young... Maybe I can help
Dave,Though I'll be sailing to Nantucket tomorrow for 8 days and will be out of the loop for a little while, I have the manuals for ST50 Wind, Speed and Depth guages on my H380. If you are stuck e-mail me back and I'll photocopy them and mail them to you where ever you are, after I return from Nantucket.Bob Knott H380