Digital compass

Hi I am seeking some help to try and add a digital compass to my
R.C. Sailing yacht. As an experimental project.

My requirement is to have a compass on board along with the ablity
send the compass reading to an onshore receiver. ( preferabley in 2.4 )

Also a small digital display that I could mount on my Radio.

I do not need any control of the boat or tracking just minute
by minute compass heading. Any help would be greatly appreciated.

David