rtl_433（尽管名字如此）是一个通用数据接收器，主要用于 433.92 MHz、868 MHz（SRD）、315 MHz、345 MHz 和 915 MHz ISM 频段。
官方源代码位于 https://github.com/merbanan/rtl_433/ 仓库中。
另请参阅 wiki 中的可与 rtl_433 配合使用的软件列表。 有关更多文档和相关项目，特别是那些有助于 rtl_433 开发的项目，请参阅 https://triq.org/ 网站。
它可与 RTL-SDR 和/或 SoapySDR 配合使用。 经过积极测试并支持的设备包括基于 Realtek RTL2832 的 DVB 接收器（使用 RTL-SDR）和 LimeSDR（LimeSDR USB 和 LimeSDR mini 工程样机，由 MyriadRf 友情提供）、PlutoSDR、HackRF One（使用 SoapySDR 驱动）以及 SoapyRemote。
rtl_433 使用可移植的 C 语言（C99 标准）编写，已知可在 Linux（包括嵌入式）、FreeBSD、MacOS 和 Windows 系统上编译。 支持较旧的编译器和工具链是一项关键目标。 低资源消耗和极少的依赖使 rtl_433 能够在嵌入式硬件上运行。 大多数常见的 32 位和 64 位 CPU 架构（如 amd64、arm64、armhf、i386、ppc64el、riscv64、s390x 等）均得到良好支持。
参见 BUILDING.md
Linux（Debian、Ubuntu）：sudo apt install rtl-433。其他发行版请参见 repology 或 pkgs.org。
FreeBSD：pkg install rtl-433。
MacOS：brew install rtl_433。
包含 rtl_433 的 Docker 镜像可在 hertzg 的 github 页面获取。
参见 CONTRIBUTING.md。
rtl_433 -h
A "rtl_433.conf" file is searched in "./", XDG_CONFIG_HOME e.g. "$HOME/.config/rtl_433/",
SYSCONFDIR e.g. "/usr/local/etc/rtl_433/", then command line args will be parsed in order.
= General options =
[-V] Output the version string and exit
[-v] Increase verbosity (can be used multiple times).
-v : verbose notice, -vv : verbose info, -vvv : debug, -vvvv : trace.
[-c <path>] Read config options from a file
= Tuner options =
[-d <RTL-SDR USB device index> | :<RTL-SDR USB device serial> | <SoapySDR device query> | rtl_tcp | help]
[-g <gain> | help] (default: auto)
[-t <settings>] apply a list of keyword=value settings to the SDR device
e.g. for SoapySDR -t "antenna=A,bandwidth=4.5M,rfnotch_ctrl=false"
for RTL-SDR use "direct_samp[=1]", "offset_tune[=1]", "digital_agc[=1]", "biastee[=1]"
[-f <frequency>] Receive frequency(s) (default: 433920000 Hz)
[-H <seconds>] Hop interval for polling of multiple frequencies (default: 600 seconds)
[-p <ppm_error>] Correct rtl-sdr tuner frequency offset error (default: 0)
[-s <sample rate>] Set sample rate (default: 250000 Hz)
[-D quit | restart | pause | manual] Input device run mode options (default: quit).
= Demodulator options =
[-R <device> | help] Enable only the specified device decoding protocol (can be used multiple times)
Specify a negative number to disable a device decoding protocol (can be used multiple times)
[-X <spec> | help] Add a general purpose decoder (prepend -R 0 to disable all decoders)
[-Y auto | classic | minmax] FSK pulse detector mode.
[-Y level=<dB level>] Manual detection level used to determine pulses (-1.0 to -30.0) (0=auto).
[-Y minlevel=<dB level>] Manual minimum detection level used to determine pulses (-1.0 to -99.0).
[-Y minsnr=<dB level>] Minimum SNR to determine pulses (1.0 to 99.0).
[-Y autolevel] Set minlevel automatically based on average estimated noise.
[-Y squelch] Skip frames below estimated noise level to reduce cpu load.
[-Y ampest | magest] Choose amplitude or magnitude level estimator.
[-Y filter=<value>] Manual FM low-pass filter cutoff to separate simultaneous transmissions: us (1-9999, e.g. 20), Hz (10000+), or ratio of sample rate (0.0-1.0).
= Analyze/Debug options =
[-A] Pulse Analyzer. Enable pulse analysis and decode attempt.
Disable all decoders with -R 0 if you want analyzer output only.
[-y <code>] Verify decoding of demodulated test data (e.g. "{25}fb2dd58") with enabled devices
= File I/O options =
[-S none | all | unknown | known] Signal auto save. Creates one file per signal.
Note: Saves raw I/Q samples (uint8 pcm, 2 channel). Preferred mode for generating test files.
[-r <filename> | help] Read data from input file instead of a receiver
[-w <filename> | help] Save data stream to output file (a '-' dumps samples to stdout)
[-W <filename> | help] Save data stream to output file, overwrite existing file
= Data output options =
[-F log | kv | json | csv | mqtt | influx | syslog | trigger | rtl_tcp | http | null | help] Produce decoded output in given format.
Append output to file with :<filename> (e.g. -F csv:log.csv), defaults to stdout.
Specify host/port for syslog with e.g. -F syslog:127.0.0.1:1514
[-M time[:<options>] | protocol | level | noise[:<secs>] | stats | bits | help] Add various meta data to each output.
[-K FILE | PATH | <tag> | <key>=<tag>] Add an expanded token or fixed tag to every output line.
[-C native | si | customary] Convert units in decoded output.
[-n <value>] Specify number of samples to take (each sample is an I/Q pair)
[-T <seconds>] Specify number of seconds to run, also 12:34 or 1h23m45s
[-E hop | quit] Hop/Quit after outputting successful event(s)
[-h] Output this usage help and exit
Use -d, -g, -R, -X, -F, -M, -r, -w, or -W without argument for more help