## 3 Setup and Measurement Campaign
### Driving Experiments from DOY 262  
On DOY 262, two sessions, called S1 and S2, were conducted, the first with simultaneous reception of the geodetic receivers and smartphones, and the second with smartphones only. In the first scenario, two receivers, one geodetic and one smartphone, were placed next to each other at each location, as shown in Figures 1 and 4a (locations from A to D). The settings of the receivers and smartphones at each site are listed in Tables 3 and 4. Already in the first session, some problems with the Samsung S20 were observed. These were due to the system settings; the same was true for the second session. Since the observations were processed immediately after the experiments, we decided to run the test on the next day, with some improvements.  
Figure 5: Test site in C\(\hat{\text{{}}}\)moti\(\hat{\text{{}}}\)e, Slovenia: (**a**) the two-sessions experiments from DOY 262; and (**b**) experiments from the DOY 263 with jammer’s track in walking scenario.  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Site** & **Session** & **Receiver** & **B-Latitude** & **L-Longitude** & **H [m]** \\ \hline A & 1 & Leica GS15 & 45.56389548\({}^{\circ}\)N & 13.89417121\({}^{\circ}\)E & 434.674 \\  & & Xiaomi 11T & 45.56389444\({}^{\circ}\)N & 13.89417501\({}^{\circ}\)E & 435.046 \\ B & 1 & Leica GS18 & 45.5637511\({}^{\circ}\)N & 18.9405181\({}^{\circ}\)E & 434.779 \\  & & Samsung S20 & 45.56375578\({}^{\circ}\)N & 13.894052052\({}^{\circ}\)E & 435.008 \\ C & 1 & Leica GS15 & 45.56361715\({}^{\circ}\)N & 13.89392034\({}^{\circ}\)E & 435.025 \\  & & Xiaomi Mi8 & 45.56361287\({}^{\circ}\)N & 13.89392920\({}^{\circ}\)E & 435.402 \\ D & 1 & Leica GS18 & 45.56344860\({}^{\circ}\)N & 13.89375931\({}^{\circ}\)E & 435.551 \\  & & Huawei P40 & 45.56344513\({}^{\circ}\)N & 13.89376268\({}^{\circ}\)E & 435.610 \\ E & 2 & Xiaomi Mi8 & 45.56396017\({}^{\circ}\)N & 13.89423794\({}^{\circ}\)E & 434.688 \\ F & 2 & Xiaomi 11T & 45.56389605\({}^{\circ}\)N & 13.89416995\({}^{\circ}\)E & 433.693 \\ G & 2 & Huawei P40 & 45.56375817\({}^{\circ}\)N & 13.89405279\({}^{\circ}\)E & 435.897 \\ \hline \hline \end{tabular}
\end{table}
Table 3: Receivers’ setup from DOY 262 at the specific locations shown in Figure 5a.  
Two sessions, i.e., Session 1 and Session 2, were conducted on DOY 262, the first with simultaneous reception of the geodetic receivers and smartphones, the second with smartphones only. In the first scenario, two receivers, one geodetic and one smartphone, were placed next to each other at each site, as shown in Figures 1 and 5a (locations from A to D). The settings of the receivers and smartphones at each site are shown in Table 3. Already during the first session, some problems were observed with the Samsung S20, which were due to the system settings; the same was true for the second session. Since the observations were processed immediately after the experiments, we decided to run the test on the next day, with some improvements.  
The coordinates of the receivers (Slovenian realization of the ETRS89 coordinate system, by using SLOVRP2016/Koper geoid model to compute the normal heights) were determined in advance using a relative static method with respect to a reference point of the Slovenian continuously operating GNSS reference network, SIGNAL.  
In all experiments, the geodetic receivers and smartphones were placed statically along the road, while the jammers were installed in the vehicle and used in kinematic mode. The vehicle passed the receivers several times at a constant speed, i.e., \"driving scenarios\" (Figure 6b). The times of each drive are shown in Table 4 for Session 1 of DOY 262 and in Table 5 for Session 2 of DOY 262.