Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station K3NTR-10 - show graphs
Comment: vhf,hf,i-gate,digi,epower
Location: 40°32.79' N 75°32.18' W - locator FN20FN51PD - show map
3.4 km West bearing 283° from Emmaus, Lehigh County, Pennsylvania, United States [?]
13.4 km Southwest bearing 243° from Fountain Hill, Lehigh County, Pennsylvania, United States
73.2 km Northwest bearing 335° from Philadelphia, Philadelphia County, Pennsylvania, United States
117.9 km West bearing 270° from Staten Island, Richmond County, New York, United States
Last position: 2025-08-11 03:51:17 UTC (23m25s ago)
2025-08-10 23:51:17 EDT local time at Emmaus, United States [?]
Last telemetry: 2023-08-21 16:04:48 UTC (720d 12h9m ago) – show telemetry
Battery: 100 Percent, Charging/AC: 48 Charge/On/Off, GPS+Sat: 2 Sats/On/Off, Current: 0 mA, A5: 0 N/A
 A/C     Charging     GPS     B4     B5     B6     B7     B8 
Device: KJ4ERJ: APRSIS32 (software, Windows)
Last path: K3NTR-10>APWW11 via TCPIP*,qAC,T2SPAIN
Positions stored: 8
Items and objects originated: N3LWY
Other SSIDs: K3NTR-9 K3NTR
Last heard a station directly: 2025-07-31 15:09:39 UTC (10d 13h5m ago)
Normal receiver range estimate: 50 km (Updated: 2024-04-30 21:26:09 UTC)
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