OK. I'm getting really cheesed off with this now.
On the last three long rides I've done, I've spent more time looking at the screen of my Vista HCx that at the scenery, 'cos I have to keep checking that it hasn't switched itself off. AGAIN.
I said 'randomly' in the subject, but I don't think it is. It's got something to do with speed and vibration. Hitting a single pothole won't switch it off, neither will riding over the wrong sort of road surface (like that thin layer of tar with a layer of grit thrown over it) fairly slowly.
But, hit a newly laid stretch of 'tarmac' or a rough downhill and I'm lucky to get it to stay on for more than a 30 secs at a stretch. AAAAAAAAHHHHHHHHHHH.
Smooth tarmac - it's fine, it'll run for for as long as the surface holds out.
So. What can I do? Someone on another thread mentioned an external battery pack, but I'd rather avoid that as I don't want to have to strap another box to the bike.
Anything to be done with the battery compartment, or (what I think is the real culprit) the lousy handlebar mount?
(Sorry. Bit long that. But I needed to rant.)