Station info for BY4SA-10 – aprs.fi

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APRS igate – Statistics for 2025-06:
Comment:	昆山APRS网关 BY4SA 144.640Mhz 天线高度180m 功率25W 13.3V
Location:	31°20.22' N 120°57.22' E - locator PM01LI40KV - show map 4.5 km South bearing 181° from Yushan, Jiangsu Sheng, China [?] 10.6 km Northeast bearing 50° from Luzhi, Jiangsu Sheng, China 49.6 km West bearing 285° from Shanghai, Shanghai Shi, China 138.4 km Northeast bearing 33° from Hangzhou, Zhejiang Sheng, China
Last position:	2025-06-10 23:29:38 UTC (15s ago) 2025-06-11 07:29:38 CST local time at Yushan, China [?]
Last path:	BY4SA-10>AP51D8 via BH4URE-10,WIDE1,qAS,BI4VNM-10
Positions stored:	22
Stations heard directly:	53 on radio path – show map
Last heard a station directly:	2025-06-10 22:43:49 UTC (46m4s ago)
Normal receiver range estimate:	70 km (Updated: 2024-12-31 20:19:35 UTC)
Position packets heard directly:	1761 on radio path
Position packets sent to APRS-IS:	1583 – show map

callsign		pkts	first heard - UTC	last heard	longest	(tx => rx)	longest at - UTC

Only position packets which were originated by the station are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.

callsign		pkts	first heard - UTC	last heard	longest	(rx => tx)	longest at - UTC

Only stations from which a position packet has been heard are shown here. The range statistics show some extra long hops, because some digipeaters do not correctly add themselves to the digipeater path. Please check the raw packets.

This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.