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 WB4SMS-9 - show graphs
Comment: WB4SMS - Mobile
Location: 35°46.99' N 78°47.00' W - locator FM05OS67AX - show map
951.2 m South bearing 192° from Cary, Wake County, North Carolina, United States [?]
5.9 km Southeast bearing 140° from Morrisville, Wake County, North Carolina, United States
10.8 km West bearing 268° from West Raleigh, Wake County, North Carolina, United States
13.1 km West bearing 275° from Raleigh, Wake County, North Carolina, United States
Last position: 2025-07-16 13:20:05 UTC (3d 9h18m ago)
2025-07-16 09:20:05 EDT local time at Cary, United States [?]
Altitude: 109 m
Course: 179°
Speed: 15 km/h
Device: BTECH: DMR 6x2 (ht)
Last path: WB4SMS-9>APBT62 via WR4AGC-3,WIDE1*,WIDE2-1,qAO,W4GSO (good)
Positions stored: 19917
Other SSIDs: WB4SMS-7
Stations which heard WB4SMS-9 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