## 3 Results
### Overall Analysis
For the G, the shortest convergence time was obtained for Function_3, which equaled 36 \(\pm\) 22 min. In turn, the longest convergence time was obtained for Function_6. It amounted to 59 \(\pm\) 44 min. For the GE and GE1, the shortest convergence time was obtained for Function_5, i.e., approximately 21 \(\pm\) 5 min for the GE and 22 \(\pm\) 6 min for the GE1. Similar results were obtained for Function_2, which was only less than a minute longer. For both the GE and GE1, the longest convergence time was obtained for Function_6 and Function_8, amounting to 34 \(\pm\) 23 min and 30 \(\pm\) 20 min, respectively. Reusing the two systems together resulted in a shorter convergence time than for each system separately and a shorter convergence time for the GE than that for the GE1 was obtained. When comparing analysis of the convergence time with the accuracy, it can be seen that the use of different weight functions in addition to the Up component also affects the East component. Figure 10 shows the results of the ZPD tests. The best values for all solutions were obtained for the E. Then, slightly worse results were obtained for the GE and GE1, and the worst values were obtained for the G. For most solutions and weighting functions, the error values and standard deviation are less than 10 mm. The exception is Function_6 and Function_8. For these functions in solution E, a mean difference of less than 0.5 mm was obtained. However, the scatter of the results is large, as evidenced by the high value of the standard deviation--14 mm and 16 mm for Function_6 and Function_8, respectively. In addition, for the G for Function_1 and Function_5, the standard deviation was greater than 10 mm and amounted to 12.2 mm and 11.1 mm, respectively. For the E, the accuracy of about 2-3 mm was obtained with the best recorded values for Function_5 being 2.5 \(\pm\) 8.6 mm. For the G, the accuracy ranged from 6 to 9 mm, with the best values for Function_3 being 8.2 \(\pm\) 7.4 mm. In case of the GE and GE1, the accuracy ranged from 5 to 7 mm, with better values for the GE than for the GE1. For these above solutions, the best values were obtained for Function_4, for which 4.7 \(\pm\) 6.9 mm and 5.1 \(\pm\) 6.2 mm were obtained, respectively. ISB obtained from the GE and GE1 (not showed here) were also analyzed. For this purpose, ISB were averaged and standard deviations were calculated for all stations of each  
Figure 10: Mean accuracy of the ZPD with standard deviation from all stations and all periods for all analyzed weighting functions. Blue—E solution, orange—G solution, red—GE solution, green—GE1 solution. type of receiver model (Table A1) from the analyzed period. Based on the obtained results, there was no correlation with the weighting functions used. The maximum difference between the functions was 3 cm, but with different dependencies for each type of receiver. Additionally, between the GE and GE1, the maximum differences were less than 2 cm and have no dependencies with the used functions. For a more detailed analyses related to the use of different weighting functions and ISB, it will be required to perform analyses for more receiver types and to use a greater number of stations for each type of receiver.