You may have read about our problem with our Navman GPS. Over the last three trips or so the time taken to acquire sufficient satellite's had been getting longer and longer until on the last trip .  Looking for some guidance (sorry) about the problem showed that our inability to secure satellite's, was not unusual! This sparked some debate about the way forward and if the fault was significant, whether we should replace it, and upgrade at the same time to either 3D or side scan sonar.

On one of the forums there was a suggestion to disconnect the aerial connection and spray it with WD40. So before we spend out on investigating the problem it seemed sensible to give it a try, and low and behold it worked! Well it has for the moment. Whether this is a permanent fix or not, time will tell but for now it seems ok.