Ray Felch // Disclaimer When using an FM transmitter, do not modify the intended operation of the module by amplifying the transmitted signal. Also, be sure that attaching an FM high gain antenna will NOT be transmitting outside the legal range for RF emissions. When transmitting any data, be sure you do not accidentally break any laws by illegally […]
The post Information From Thin Air: Using SDR to Extract DTMF from Radio Waves appeared first on Black Hills Information Security.
Article Link: https://www.blackhillsinfosec.com/information-from-thin-air-using-sdr-to-extract-dtmf-from-radio-waves/