This master thesis investigates the possibilities of using low cost GPS receivers for static rela-tive positioning. The aim of the project is to determine the achievable level of precision, and furthermore to determine the relationship between both precision and baseline length as well as precision and session length. Calculations are performed in consideration of the fact that the Garmin 12XL receiver suffers from half cycleslips. Furthermore, the ambiguities are calculated as half cycle values. During the project methods for cycleslip correction have been developed and implemented in the cal-culation procedures. The test shows that it is possible to achieve deviations smaller than 2 cm, when the baseline is shorter than 6 km. With a 15 kilometre baseline, a deviation of 10 centimetres can be achieved. These results are achieved with a session length of up to 88 minutes.