rfid

  1. P

    RFI Identification on SDR

    I have attached 3 images of my RFI problem Image 1: Shows the RFI morphing into the alternating signal. This happens every 2.5 min and starts from a constant signal to a stronger signal for 5 sec then into the alternating signal for 5 sec. Image 2: shows spacing of RFI Image 3: What my...
  2. telxonmaster

    Unknown antennas popping up on traffic lights. RFID?

    Here in Springfield Missouri, these antennas are popping up on various traffic lights at some of the busier intersections around town. This looks like RFID, which would be bad from a privacy standpoint. It could also be for emergency vehicle detection to change the lights for them, but if so...
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