Okay I was going to completely hammer this. But I will not. After an unduely complex intall process, this converter just does not do what it says on the tin. Okay, it is a NGR converter, not a latitude converter, and to be fair I spose this is okay. But if you have lattitude or longitude info it still generates, NGR data which is great. However, be warned there is no obvious support and if you are lucky enough to have the seemingly random switch numerical data function off for the NGR then away you go.