Viper Analysis Report - 11-17-2011 - 1 - Attachment 2

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CTA Communications Orange RaCE Test Report 3.0 Summary Of Testing And Conclusions Reached 3.1 Talk -In DAQ The Talk -In DAQ results for the analog channel tested are indicated in FIGURE B - 2. Out of 705 test grids, 317 grids passed (Passed grid = 3.0 or higher, see SECTION 5.1 for channel performance criterion). This equates to a portable on the hip talk -in reliability of 45 %. 3.2 Talk -Out DAQ The Talk -In DAQ results for the analog channel tested are indicated in FIGURE B - 3. Out of 695 test grids, 467 grids passed (Passed grid = 3.0 or higher, see SECTION 5.1 for channel performance criterion). This equates to a portable on the hip talk -out reliability of 67 %. 3.3 RSSI FIGURES B - 4 through B - 10 indicate the RSSI measurements for the following sites: Camden, Cane, Chatham, Cole Mil, Hillsborough, Laws, and UNC. These show the received signal levels for the control channel of the indicated sites that were collected during the DAQ testing. Green colored dots have sufficient signal strength to support portable -on- the - street communications. Gray colored dots have signal levels sufficient for mobile communications, but probably not strong enough to support reliable portable operation. Red colored dots indicate signal strength too low for reliable communications of any kind to or from the selected radio site. FIGURE B -11 indicates the highest RSSI value for a given test location from all the sites to show overall system performance based upon signal strength alone. Out of 1084 total test locations, 918 of those locations have a RSS greater than -93 dBm which should be sufficient to support portable on the hip operations. This corresponds to an area reliability for portable operations of 85 %. An additional 151 test locations had sufficient signal strength to support mobile operations (> -102 dBm). This gives a mobile operations area reliability of 98 %. Only two (2) percent of the locations tested did not have sufficient signal strength to support any radio operations. FIGURE B -12 indicates where each of the seven sites tested had the highest RSSI value and would be the ideal best server for the area. FIGURE B -13 is a consolidation of the where the radio was affiliated with during the DAQ testing and best server information that was obtained from the RSSI measurements indicated in B -12. The border shading of the grids indicate the site that had the highest received signal strength for that location. The interior color of the grid indicates which site, based upon the mobile radio's transmit frequency, the radio was actually affiliated. In areas where the colors match, then the affiliation would appear to be correct. If the colors don't match then there is a disparity between which site the talk -in test was affiliated with and which site had the highest RSSI.