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Get ECM J/S ratio (SSJ) old version APK for Android
For ECM, Calculate the J/S ratio for the self-screening jammer (SSJ) situation
For Electronic Counter Measures (ECM), this app is used to determine the jammer-to-signal (J/S) ratio. For a tracking radar, enter the power in kW, antenna gain in dB, and IF bandwidth in MHz. Then enter the aircraft cross sectional area in m^2 and the range in km, for a self-screening jammer on board with transmitter power in kW over a bandwidth in MHz and given antenna gain in dB at a distance from the radar in km
For example, Enter Pt = 100, Gr = 35, Br = 1, A = 4, R = 3, Pj = 1, Bj = 20 and Gj = 10. Your values for J/S (SSJ) should be 16.5.
Last updated on Oct 15, 2015
Minor bug fixes and improvements. Install or update to the newest version to check it out!
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Requires Android
Android 2.2+
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ECM J/S ratio (SSJ)
1.0 by Randle C. Sink
Oct 15, 2015