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Supports full DIGI relay function, support custom relay name, support relay remote turn-off function, remote control peripheral sensor input and relay output module,Built-in advanced CMX programming algorithm, Built-in transmit level, receive level adjuster (-10.5dB -0dB), Built-in high performance GPS\Beidou\GLONASS multimode hybrid positioning module, Built-in advanced algorithm to support rich data analysisSupports heading, north position, relative motion position calculation, APRS distance, elevation target calculation, G5500 aircraft, vessel and other tracking control*'''Companion PC setup software (Chinese, English) (requires .NET 4.0)'''*UHF or VHF options, 1W RF outputSupport battery USB direct charging, comprehensive GPS interface, beacon list interface, real-time beacon interface, beacon record analysis interface Built-in temperature\pressure auxiliary sensor (temperature & air pressure values for referenceonly)Supports off-network use, no network, direct mutual positioning, liuyun, APRSdroid, LOCUS, Ovi and other APP and supports user independent firmware upgrade.== Operating ==[[File:aprsx1c50000001.gif]]