Top 2 Apps Similar to Radio Crash
ECM J/S ratio (SOJ) 1.0
For ECM, this app is to calculate the J/S ratio for thestand-offjammer (SOJ) situation. In this case, the jammer is at adifferentlocation than the target. While the target is in the mainbeam ofthe radar antenna, the jammer radiates power into thesidelobes. Asan example, for a tracking radar, enter the power inkW antennagain in dB, and IF bandwidth in MHz. Then enter theaircraft crosssectional area in m^2 and the range in km. Next, fora jammer onboard with transmitter power in kW over a bandwidth inMHz andgiven antenna gain in dB at a distance from the radar in kmand asidelobe in dB level for the radar antenna. For example, EnterPt =100, Gr = 35, Br = 1, A = 4, R = 3, Pj = 1, Bj = 20, Gj = 10,Rj =10, & SL = 20. Your value for J/S (SOJ) should be -14.0 dB.
