What's New

This app has been updated by Apple to display the Apple Watch app icon.

Updated for latest iOS. Resolved issue with using location services.

App Description

Compute distance and bearing using Maidenhead location. This was originally intended for use by amateur radio operators who participate in microwave communications however it can be used by any ham in order to determine a distance and bearing to another radio amateur.

If you want to see maps of the source and target with annotations and overlays as well as be able to touch the map to determine the grid at a particular point, then take a look at our App: DBHamPlus.

iPhone Screenshots

(click to enlarge)

DBHam screenshot 1

App Changes

  • September 23, 2012 Initial release
  • May 12, 2013 New version 1.02
  • June 14, 2019 New version 1.32

Other Apps From Thomas Sullivan

DBHamPlot DBHamPlus