[Robert]

I bought an X6-HR two weeks ago in Spain. I am now living in London. I changed the altitude of reference (15m) using a topographic map of the city. I also changed the declination for the compass (5W).

The problem is that I continously get negative altitudes. I know that the watch uses barometric pressure to change altitude, but London is flat and it goes up to -60 and -90 meters. I don't think the weather is so different. I may be missing something.

Do I have to set both altitude of reference and air pressure at sea level at the same time? This is not clear in the instructions. Moreover, if I change the altitude of reference or the air pressure at sea level, it is not saved in memory, after a very short while, it changes again, so I am sure there is a piece missing in my puzzle !!! Would you mind giving me more details on how to solve this issue, please?

Also, it is very difficult to calibrate the compass turning around, the cross is never 100% of the time in the sqare. Do you know a better way of doing it, please?

Thanks

	Suunto X6 HR - Click for more info Just when you thought a sports watch couldn't get any better, Suunto introduces the X6 HR, X6 HRM and X6-HRT. These are truly the next generation in sports watches, packed with all of the technology that Suunto enthusiasts have been craving. Designed for Cross Sports applications, the X6 writstops are functionally very similar to the Suunto X6 - but with the added benefits of a heart rate monitor.

	Compass Compasses are sensitive, absolutely crucial instruments to precision navigation. The earth's magnetic field, inclination, and your longitude and latitude all influence the horizontal plane of a compass needle. As a result, compasses are balanced for different geographical zones. Suunto Compasses overcome this limitation to traditional compasses by using a simple 'Two Zone System'. With a Suunto Compass, the only 'balancing zones' are the northern and southern hemispheres. In addition to this innovation, certain Suunto Compasses come equipped with useful features like luminous needles and marks, centimeter/inch scales, magnifying glasses, clinometers, sighting notches, and more.