![Using SDR to Build a Trunk Tracker - Police, Fire, and EMS Scanner - Black Hills Information Security Using SDR to Build a Trunk Tracker - Police, Fire, and EMS Scanner - Black Hills Information Security](https://www.blackhillsinfosec.com/wp-content/uploads/2021/05/image-21.png)
Using SDR to Build a Trunk Tracker - Police, Fire, and EMS Scanner - Black Hills Information Security
![Freq Show: Raspberry Pi RTL-SDR Scanner « Adafruit Industries – Makers, hackers, artists, designers and engineers! Freq Show: Raspberry Pi RTL-SDR Scanner « Adafruit Industries – Makers, hackers, artists, designers and engineers!](https://cdn-blog.adafruit.com/uploads/2014/10/freq-show-raspberry-pi-rtl-sdr-s.jpg)
Freq Show: Raspberry Pi RTL-SDR Scanner « Adafruit Industries – Makers, hackers, artists, designers and engineers!
![Using SDR to Build a Trunk Tracker - Police, Fire, and EMS Scanner - Black Hills Information Security Using SDR to Build a Trunk Tracker - Police, Fire, and EMS Scanner - Black Hills Information Security](https://www.blackhillsinfosec.com/wp-content/uploads/2021/05/image-29-1024x349.png)
Using SDR to Build a Trunk Tracker - Police, Fire, and EMS Scanner - Black Hills Information Security
GitHub - shajen/rtl-sdr-scanner: Automatically scan and record selected frequencies ranges using rtl-sdr.
![Nooelec - Nooelec NESDR SMArt v5 SDR - HF/VHF/UHF (100kHz-1.75GHz) RTL-SDR. RTL2832U & R820T2-Based Software Defined Radio Nooelec - Nooelec NESDR SMArt v5 SDR - HF/VHF/UHF (100kHz-1.75GHz) RTL-SDR. RTL2832U & R820T2-Based Software Defined Radio](https://www.nooelec.com/store/media/catalog/product/cache/1/image/1200x/040ec09b1e35df139433887a97daa66f/s/m/smart_v5_2_1.png)
Nooelec - Nooelec NESDR SMArt v5 SDR - HF/VHF/UHF (100kHz-1.75GHz) RTL-SDR. RTL2832U & R820T2-Based Software Defined Radio
![Amazon.com: SDR Receiver Kit, DAB FM Radio Receiver 25‑1760MHz Low Insertion Loss with USB Data Cable for Wireless Scanning Device : Electronics Amazon.com: SDR Receiver Kit, DAB FM Radio Receiver 25‑1760MHz Low Insertion Loss with USB Data Cable for Wireless Scanning Device : Electronics](https://m.media-amazon.com/images/I/61cLbllyYlL.jpg)