ข้อมูลสถานี - ดูแผนที่ · รายละเอียด · telemetry · สภาพอากาศ · raw · status · beacons · ดูข้อความ · bulletins · browse · moving · ชื่อบัญชีฉัน
Callsign, ship name or locator: ล้าง       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station W4TTU-9 - show graphs
Comment: /TinyTrak4 Alpha
Mic-E message: Off duty
Location: 39°02.71' N 77°07.01' W - ตำแหน่ง FM19KB50XU - show map
7.3 km เหนือ bearing 349° มาจาก Bethesda, Montgomery County, Maryland, United States [?]
8.9 km ตะวันตกเฉียงเหนือ bearing 337° มาจาก Chevy Chase, Montgomery County, Maryland, United States
18.1 km ตะวันตกเฉียงเหนือ bearing 337° มาจาก Washington, D. C., Washington, D.C., United States
51.3 km ตะวันตกเฉียงใต้ bearing 238° มาจาก Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-04-12 20:58:17 UTC (20h44m ago)
2025-04-12 16:58:17 EDT เวลาท้องถิ่น Bethesda, United States [?]
Altitude: 137 m
Course: 98°
ความเร็ว: 0 km/h
Last path: W4TTU-9>SYPR7Q via KV3B-1,WIDE1*,WIDE2-1,qAR,W4VA-13 (good)
Positions stored: 61096
Other SSIDs: W4TTU-2 W4TTU-10 W4TTU-7 W4TTU-1 W4TTU
Stations which heard W4TTU-9 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.
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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS