I have searched through both the forum and the (pretty useless) manual for the Columbus unit which I have had retro-fitted but I can't find if you are able to display YOUR current speed. My unit shows the appropriate speed limits in force which is very useful.

Absolutely delighted with the Columbus unit - far better than the Amundsen unit and obviously a step up from the Bolero - which is an excellent unit without the GPS etc.

Found the 'video' feature superb while waiting for 2 hours at Roscoff ferry port recently - didn't really want to board the ship as we wanted to watch the end of the DVD.

Any help would be much appreciated.

Peter

Do you mean on the Columbus unit, or the Maxidot display?

If on the Maxidot display there is a current thread in the Yeti section about this.(again!!)

Speed information is available only when the hidden Testmode menu is activated. There you can see the real speed according to GPS data under menu Navigation->Matched position, and speed from vehicle sensors under CAN menu.

Speed display is not possible on the headunit itself, as the speed is already displayed on the speedo and maxidot. Even if it was possible, the figure will be the same as imagine the hassle that would be caused with different speed displays.

Thanks for the responses. It was on the Columbus unit that I was enquiring about.

I was always under the impression (maybe wrongly) that GPS speed readings were more accurate than conventional 'speedo' readings.

When I have exactly 70mph showing on my stand alone Garmin GPS the maxi-dot reading (Australia style) is showing 74mph and 30 on the Garmin is 32 on the maxi-dot.

Peter

That is one of many urban myths.

A GPS device will give an approximate speed, it the speed is constant, on a level road and nothing overhead, if you are lucky.

Trees can give false readings as well a buildings.

If you were clccked doing 77mph on your gps and you speedo shows 80mph or whatever, you would have no defence saying to the Judge 'my GPS said my speed was xx mph'

I have one GPS device where the speed can vary depending where I am, whether there are trees overhead, how steep the hill, where the satellites are, etc, by about 10mph.