# Electronic smoke screen ## Description This design is three parts, one a bandpass filter to allow only a certain frequency to come through the device, and the other two to filter and jam out different frequencies that would be coming near the device. The bandpass is set at 450MHz as is the common frequency for phones, the top jammer is set up for blocking out typical radio frequencies while the bottom is set to block frequencies above that of a phone signal. Vin=20 volts ## Project Details - **Owner:** dylanstat - **Created:** 8/26/2024 - **Last Updated:** 3/31/2025 - **Visibility:** Public - **Stars:** 2 ## Key Components ### AE1 — Device_Antenna - Manufacturer Part Number: Device_Antenna **Pins:** - A [pin 1] ### AE2 — Device_Antenna - Manufacturer Part Number: Device_Antenna **Pins:** - A [pin 1] ### AE3 — Device_Antenna - Manufacturer Part Number: Device_Antenna **Pins:** - A [pin 1] ### Q1 — [MMBT5401](https://www.flux.ai/adrian95/mmbt5401~zx1.md) - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/ON%20Semiconductor%20PDFs/MMBT5401.pdf - Manufacturer Name: onsemi - Part Type: Transistor - Manufacturer Part Number: MMBT5401 **Pins:** - B - C - E ### Q2 — [MMBT3904](https://www.flux.ai/vasy_skral/mmbt3904~tsj.md) - Manufacturer Name: MDD - Datasheet URL: https://media.digikey.com/pdf/Data%20Sheets/NextGen%20Components%20PDFs/MMBT3904.pdf - Manufacturer Part Number: MMBT3904 - Part Type: Transistor **Pins:** - B - C - E *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/dylanstat/electronic-smoke-screen~co](https://www.flux.ai/dylanstat/electronic-smoke-screen~co).* --- *Generated from [https://www.flux.ai/dylanstat/electronic-smoke-screen~co](https://www.flux.ai/dylanstat/electronic-smoke-screen~co)*