Reading RAW signals

flipper zero can record signals from radio remotes in raw format without decoding, similar to how a dictaphone records sound the signals are demodulated in accordance with modulation settings you can use the read raw function for recording signals with known and unknown protocols for later playback and analysis we constantly update and improve the flipper zero firmware with the help of our community if your radio remote can ’ t be decoded with the read function, you can help add the remote to the list of supported devices you can leave information about your remote https //forum flipperzero one/t/my remote isnt supported how to add new sub ghz protocol in flipper zero/2033 on the forum https //forum flipperzero one/t/my remote isnt supported how to add new sub ghz protocol in flipper zero/2033 for analysis with our community on this page, you ’ ll learn how to record and playback raw signals with your flipper zero this article also explains what to do if flipper zero is unable to read the signal with default settings if you disabled your key fob after using the read raw feature on the original key fob, try pressing the same “unlock” button multiple times check your car vendor manuals on adding or removing new keys you can follow these procedures to add new keys without contacting the dealer contact the dealer and inform them that your key fob stopped working they should be able to help you with fixing the car key fob reading raw signals procedure in read raw mode, flipper zero records demodulated signals from remotes in a raw format to read and save the signal from the remote control in a raw format, do the following go to main menu > sub ghz select read raw , then press rec to start the recording process press the button on the remote control you want to record in a raw format after recording a raw sample, press stop , then press save name the recorded signal, then press save read raw configuration menu you can manually switch frequencies and modulations in this menu and set the minimum recorded signal strength to open the configuration menu, on the scanning screen, press config you ’ ll see the following frequency configuration you can switch frequencies at which flipper zero receives signals in the configuration menu, by pressing %left% left or %right% right you can manually set frequencies from the list to read the signal correctly, it is necessary to determine the frequency of the remote for that, you can use the frequency analyzer feature modulation configuration to capture the signal from the remote control, you need to configure the correct modulation settings on flipper zero because flipper zero is not a software defined radio, you need to configure the correct modulation before scanning the signal otherwise, flipper zero will not demodulate and record data correctly flipper zero supports amplitude (am) and frequency (fm) signal modulations in the configuration menu , by pressing %left% left or %right% right you can manually set signal modulations from the list am270 amplitude modulation with the bandwidth of 270 khz am650 amplitude modulation with the bandwidth of 650 khz (set as default) fm238 frequency modulation with the bandwidth of 270 khz and the deviation of 2 380371 khz fm476 frequency modulation with the bandwidth of 270 khz and the deviation of 47 60742 khz rssi threshold configuration you can record high strength signals in a raw format and avoid recording low strength signals by setting the signal strength sensitivity in units of dbm once the signal strength drops below the selected minimum rssi value, flipper zero will continue recording for one more second and then pause recording the recording process will resume once the signal strength exceeds the selected minimum rssi value sending raw signals flipper zero can send raw signals at frequencies that are allowed for transmission in your region to send a saved raw signal with your flipper zero, do the following go to main menu > sub ghz > saved select the signal press send to send the saved raw signal once to learn more about regions and allowed transmitting frequencies, visit the frequencies page