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APRS station E21SMM-3 - show graphs
Comment: E21SMM-3 DIGIPEATER AT NONTHABURI #
Location: 13°54.57' N 100°21.73' E - ตำแหน่ง OK03EV38LG - show map
6.7 km ตะวันตก bearing 262° มาจาก Bang Bua Thong, Nonthaburi, Thailand [?]
22.9 km ตะวันตกเฉียงเหนือ bearing 319° มาจาก Bangkok, Bangkok, Thailand
42.8 km ตะวันตกเฉียงเหนือ bearing 324° มาจาก Samut Prakan, Samut Prakan, Thailand
Last position: 2025-06-06 05:56:11 UTC (3m31s ago)
2025-06-06 12:56:11 +07 เวลาท้องถิ่น Bang Bua Thong, Thailand [?]
Last telemetry: 2023-09-15 00:33:46 UTC (630d 5h25m ago) – show telemetry
Ch 1: 188, Ch 2: 10, Ch 3: 0, Ch 4: 64, Ch 5: 62
Last path: E21SMM-3>APRSTH via WIDE1-1,WIDE2-1,qAR,E20EHQ-10 (good)
Positions stored: 5
APRS digipeater – Statistics for 2025-06:
Stations heard directly: 1 on radio path – show map
Last heard a station directly: 2025-06-06 01:58:59 UTC (4h ago)
Normal receiver range estimate: 120 km (Updated: 2018-11-30 22:56:51 UTC)
Position packets heard directly: 5 on radio path
Stations which heard E21SMM-3 directly on radio –
ชื่อสถานี pkts ได้ยินครั้งแรก - UTC ได้ยินล่าสุด ยาวสุด (tx => rx) ยาวสุด ณ ตำแหน่ง - 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.
Stations heard directly by E21SMM-3
ชื่อสถานี pkts ได้ยินครั้งแรก - UTC ได้ยินล่าสุด ยาวสุด (rx => tx) ยาวสุด ณ ตำแหน่ง - 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.
About this site
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.
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