## 6 Test Results  
This section presents the results of the standardized tests for the two categories of receivers, Mass-Market (MM) and PROfessional (PRO) RUT. An initial version of the test results was published in [16], where the results were analyzed only for one interference signature. The published article in [16] only offered a general overview on the impact on the receivers when exposed to real-world interference and it lacked a thorough analysis of receivers' performance under different circumstances (e.g., impact of C/N\({}_{0}\) thresholding, impact of how the interference signal is generated, impact of various interference signatures, impact on dual frequency receiver, etc.). Therefore, an extensive result analysis of receiver testing is presented as follows.  
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Threat Id** &
\begin{tabular}{c} **Type of** \\ **Signal** \\ \end{tabular} & \multicolumn{1}{c}{**Example Plot**} & **Reason for Choice** \\ \hline
01 & \begin{tabular}{c} Wide \\ Sweep-fast \\ repeat rate \\ \end{tabular} & \begin{tabular}{c} \\ \end{tabular} & \
\begin{tabular}{c} \\ \end{tabular} &
\begin{tabular}{c} Very common (total number of \\ events, and number of sites) \\ \end{tabular} \\ \hline
02 & \
\begin{tabular}{c} Multiple \\ narrowband \\ \end{tabular} &
\begin{tabular}{c} Very common (total number of \\ events and number of sites) \\ \end{tabular} \\ \hline
03 & \
\begin{tabular}{c} Triangular \\ wave \\ \end{tabular} &
\begin{tabular}{c} Common (number of sites) \\ \end{tabular} \\ \hline
04 & \
\begin{tabular}{c} Triangular \\ wave \\ \end{tabular} &
\begin{tabular}{c} Quite common. Evolving \\ threat (new type) \\ \end{tabular} \\ \hline
05 & \
\begin{tabular}{c} Tick \\ \end{tabular} &
\begin{tabular}{c} Quite common. Evolving \\ threat (new type) \\ \end{tabular} \\ \hline
05 & \
\begin{tabular}{c} Tick \\ \end{tabular} &
\begin{tabular}{c} Quite common. Evolving \\ threat (new type) \\ \end{tabular} \\ \hline \hline \end{tabular}
\end{table}
Table 3: Description of baseline set of selected threats.  
For each RUT category, a summary table provides a comparison between the impacts of the 5 selected types of interference. In particular, the results are shown in terms of the following metrics:  
1. Maximum horizontal position error during the interference interval;
2. Maximum vertical position error during the interference interval;
3. Position fix availability during the interference interval;
4. Jamming-to-Signal ratio at which the position fix is lost for at least 5 s (J/S\({}_{\text{PVT\_lost}}\));
5. Jamming-to-Signal ratio at which the position fix is reobtained for at least 5 s (J/S\({}_{\text{PVT\_reobtained}}\));
6. TTRP.  
The receiver's performance under conditions of the different interference signals is compared to the baseline under nominal signal conditions. For the baseline case, the statistics are computed by considering the interval corresponding to the one when, in the interference test case, the interference would be on. This ensures that the differences in the test statistics of the receiver performance, between a baseline test case and the selected threat test case, is solely due to the impact of the threat signature on the GNSS signal.