Station info for WC4J – aprs.fi

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APRS igate – Statistics for 2025-12:
Comment:	MANASSAS, VA FM18
Last status:	APRS 144.39 / 50.62
Location:	38°47.59' N 77°31.53' W - locator FM18FT60WI - show map 2.4 km West bearing 271° from Sudley, Prince William County, Virginia, United States [?] 9.9 km Southwest bearing 238° from Centreville, Fairfax County, Virginia, United States 43.8 km West bearing 255° from Washington, D. C., Washington, D.C., United States 96.3 km Southwest bearing 235° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-12-16 03:47:32 UTC (9m56s ago) 2025-12-15 22:47:32 EST local time at Sudley, United States [?]
Device:	KJ4ERJ: APRSIS32 (software, Windows)
Last path:	WC4J>APWW11 via TCPIP*,qAC,T2CSNGRAD
Positions stored:	6380
Other SSIDs:	WC4J-14 WC4J-9
Stations heard directly:	29 on radio path – show map
Last heard a station directly:	2025-12-13 04:07:07 UTC (2d 23h50m ago)
Normal receiver range estimate:	20 km (Updated: 2025-12-13 02:27:06 UTC)
Position packets heard directly:	8006 on radio path
Position packets sent to APRS-IS:	29998 – show map

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.

callsign		pkts	first heard - UTC	last heard	longest	(rx => tx)	longest at - UTC

Only stations from which a position packet has been heard 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.

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.