Help topics
- Purpose of the site
- Adjusting the Ordnance Survey Maps Compass
- Browser Support
- Compass features
- Compass or GPS - pros and cons for navigation
- Compass Test
- Draw Single Leg Route
- Extending the compass direction of travel arrow
- False readings when using a compass
- Fine Tuning the Ordnance Survey Maps Compass
- Getting Started with Ordnance Survey Maps Compass
- Google Compass
- GPS or Compass - which is best for navigation?
- Grid references test
- Helpful Tips
- How to use a compass
- Import Routes
- Latitude and longitude positions: degrees, minutes and seconds
- Magnetic declination or variation
- Magnetic declination or variation adjustment
- Magnetic declination or variation calculation
- Map projections
- Map reading
- Map reading skills test
- Map symbols
- Menu
- Moving and Manipulating the Ordnance Survey Maps Compass
- Multi legged Routes
- My Ordnance Survey Compass Map Routes
- Negative magnetic declination or variation
- New Features
- North: different types
- Open Routes
- Ordnance Survey maps projection
- Panning and Zooming with Ordnance Survey Maps Compass
- Positive magnetic declination or variation
- Print Map Function
- Privacy policy
- Resizing the compass direction of travel arrow
- Route information
- Safety
- Save and Store Map Routes
- Single leg or multi-legged routes?
- Single Leg Route
- Stored Map Routes
- Test your compass reading skills
- Tips
- Types of bearings used in navigation
- Updates
- User Guide
- Watch as Compass
- What is a compass?
- What type of compass is used on the site?
- Zooming with Ordnance Survey Maps Compass
- Disclaimer
- Credits and Licence Agreement
Browser Support and Ordnance Survey Compass

The Ordnance Survey Compass application is supported by most modern browsers, with the exception of Opera 11 (see table below). The application is javascript-heavy and although the code has been optimised for individual browsers, there are clear differences in responsiveness and execution speeds. Google Chrome is the most responsive and 'snappy', followed by Safari and Firefox.
Browser performance speeds for OSCompass.com | ||||
---|---|---|---|---|
Browser | Malfunction | Slow | Medium | Fast |
Google Chrome 13 | X | |||
Firefox 5 | X | |||
IE 6 | X | |||
IE 7 | X | |||
IE 8 | X | |||
IE 9 | X | |||
Opera 10 | X | |||
Opera 11 | X | |||
Opera 12 | X | |||
Safari 4 | X |
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