Added the Jammer (sh_detector_jammer). This entity jams signals around it. Trying to use the Detector within range of a Jammer will not work; the Detector will display "Signal Jammed". The Jammer must be destroyed for the Detector to work again.
You can adjust various settings about the Jammer in lua\entities\sh_detector_jammer\config.lua Developers: you can use the SH_DETECTOR_JAMMER:IsJammed(pos) function to determine whether the position is within Jammer range.