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 WZ0C-4 - show graphs
Comment: WZ0C-4 145.09 Packet/50.640 USB VARA
Last status: NOSaprs 2.0h WZ0C-4 BBS 145.09 Packet/50.640 USB VARA
Last beacon: WZ0C-4 BBS [MAYNARD, MA]
Location: 42°26.14' N 71°27.18' W - locator FN42GK54PN - show map
379.3 m Northwest bearing 311° from Maynard, Middlesex County, Massachusetts, United States [?]
4.3 km East bearing 92° from Stow, Middlesex County, Massachusetts, United States
33.4 km West bearing 285° from Boston, Suffolk County, Massachusetts, United States
35.0 km West bearing 289° from South Boston, Suffolk County, Massachusetts, United States
Last position: 2025-11-27 06:45:55 UTC (6d 16h21m ago)
2025-11-27 01:45:55 EST local time at Maynard, United States [?]
Last telemetry: 2024-09-17 15:22:58 UTC (442d 7h44m ago) – show telemetry
Ch 1: 444, Ch 2: 631, Ch 3: 0, Ch 4: 0, Ch 5: 0
Device: VE4KLM: NOSaprs for JNOS 2.0
Last path: WZ0C-4>APN20H via WIDE1-1,WIDE2-1,qAR,W1DMR-4 (good)
Positions stored: 80
Other SSIDs: WZ0C-13 WZ0C-9 WZ0C-11 WZ0C-12
Last heard a station directly: 2025-11-26 17:41:25 UTC (7d 5h26m ago)
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