Heading Alarm?

[conachair]

Originally Posted by Ann T. Cate

Mate, I haven't been where he is, but have faced similar situations. That boundary zone is lovely, and if you have the electricity to spare to run the computer all night, with the screen on, good on you.

We have relied so far on the AIS anchor alarm, which has served us well so far.

Ann

With raspberry pi the draw is olny about 0.3a so not such a big deal, saying that I've never needed more than a android app. The OP did mention he has a machine running opencpn so by the sounds of it he has all he needs already. Head, imho, isn't so useful, last night I was pointing about 90deg to the anchor with a little wind over tide.

[Paul Elliott]

Originally Posted by Stu Jackson

It seems to me that the heading of the boat at anchor in the examples you gave would not necessarily be where the bow is actually pointed, no?

Heading is by definition the direction the bow is pointed. Course is the direction the boat is moving. If your speed is zero, then your course is undefined.