Ntiaj teb no tsiaj taug qab ntaus ntawv, HQBV0702.
●GPS, BDS, GLONASS qhov chaw qhov system taug qab.
●Aerospace standard solar vaj huam sib luag.
●Yooj yim rau siv thiab tswj.
●Nws pib hloov ntawm cov ntaub ntawv sau zaus raws li cov khoom siv roj teeb.
●VHF/LoRa (yeem), kev sib txuas lus ntau ~ 30 km.
Kentish Plover (Charadrius alexandrinus yog ib qho ntawm ntau yam)
Dawb-faced Plover (Charadrius dealbatus)
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