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 N4SNI-6 - show graphs
Comment: Alinco DJ-MD5
Location: 38°36.20' N 77°07.60' W - locator FM18KO44TT - show map
1.3 km Southeast bearing 116° from Potomac Heights, Charles County, Maryland, United States [?]
5.4 km Southwest bearing 240° from Bryans Road, Charles County, Maryland, United States
33.4 km South bearing 194° from Washington, D. C., Washington, D.C., United States
88.3 km Southwest bearing 210° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2025-12-20 21:06:51 UTC (1d 12h33m ago)
2025-12-20 16:06:51 EST local time at Potomac Heights, United States [?]
Course: 121°
Speed: 0 km/h
Device: R3ABM: BrandMeister DMR
Last path: N4SNI-6>APBM1D via N4SNI,DMR*,qAR,N4SNI (good)
Positions stored: 1
Other SSIDs: N4SNI
Stations which heard N4SNI-6 directly on radio –
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.
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