Frequencies must be within the same 2MHz. : decode from airspy receiving at VHF frequencies "f1" and optionally "f2" to "fN" in Mhz (ie : -s 131.525 131.725 131.825 ). p ppm : set rtl ppm frequency correction g gain : set rtl preamp gain in tenth of db (ie -g 90 for +9db). : decode from rtl dongle number or S/N "rtldevice" receiving at VHF frequencies "f1" and optionally "f2" to "fN" in Mhz (ie : -r 0 131.525 131.725 131.825 ). b filter: filter output by label (ex: -b "H1:Q0" : only output messages with label H1 or Q0" i station id: id use in acarsdec network format. j ipaddr:port : send acars messages to addr:port via UDP in JSON format N ipaddr:port : send acars messages to addr:port via UDP in acarsdec format n ipaddr:port : send acars messages to addr:port via UDP in planeplotter compatible format l logfile : append log messages to logfile (Default : stdout) t time : set forget time (TTL) in seconds in monitor mode(default=600s) o lv : output format : 0 : no log, 1 : one line by msg, 2 : full (default), 3 : monitor mode, 4 : msg JSON, 5 : route JSON A : don't display uplink messages (ie : only aircraft messages) UsageĪcarsdec ] -r rtldevicenumber f1 | -s f1 It allows the user to directly monitor to up to 8 different frequencies simultaneously with very low cost hardware. Multi-channel decoding is particularly useful with broadband devices suchĪs the RTLSDR dongle, the AIRspy and the SDRplay device. decoding of ARINC-622 ATS applications (ADS-C, CPDLC) via libacars library.logging data over UDP in planeplotter or acarsserv formats to store in an sqlite database, or JSON for custom processing.Or airspy or sdrplay software defined radios (SDR)
up to 8 channels decoded simultaneously.Since 3.0, It comes with a database backend : acarsserv to store received acars messages. Acarsdec is a multi-channels acars decoder with built-in rtl_sdr, airspy front end or sdrplay device.
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