Misali la, Sidine jamana na mɛtɛrɛ 200 (padaya 700) danfara bɛ GPS kɔrudɔne la minnu donen do GDA la (min sinsinnen do global standard WGS 84 kan) ani AGD (a bɛ kɛ sigida karitiw fanba la), min ye filiba ye min manka kɛ baara dɔw la, i n'a fɔ sɛgɛsɛgɛli walima yɔrɔ min na sumarɛn bɛ jilafɛnw sɛgɛsɛgɛ.