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 W4WWM-B - show graphs
Map loading...
Comment: 440 Voice 443.67000MHz +5.0000MHz
Location: 34°44.84' N 86°45.45' W - locator EM64OR99CI - show map - static map
3.4 miles North bearing 351° from Madison, Madison County, Alabama, United States [?]
7.6 miles Northwest bearing 305° from Redstone Arsenal, Madison County, Alabama, United States
9.8 miles West bearing 277° from Huntsville, Madison County, Alabama, United States
16.1 miles Northeast bearing 53° from Decatur, Morgan County, Alabama, United States
Last position: 2017-12-13 13:37:37 EST (18m9s ago)
2017-12-13 12:37:37 CST local time at Madison, United States [?]
Device: Jonathan, G4KLX: ircDDB Gateway (D-Star)
Last path: W4WWM-B>APDG02 via TCPIP*,qAC,W4WWM-BS
Positions stored: 1
Packet rate: 1176 seconds between packets on average during 58811 seconds.
Other SSIDs: W4WWM W4WWM-C W4WWM-R
Stations near current position of W4WWM-B - show more
callsign distance last heard - EST      callsign distance last heard - EST
KJ4NYH C0.0 yards 0°2017-12-13 13:37:07 KJ4NYH-C0.0 yards 0°2017-12-13 13:37:17
KJ4NYH D0.0 yards 0°2017-12-13 13:37:47 KJ4NYH-D0.0 yards 0°2017-12-13 13:37:57
KJ4NYH A0.0 yards 0°2017-12-13 13:38:07 KJ4NYH-A0.0 yards 0°2017-12-13 13:38:17
W4WWM B0.0 yards 0°2017-12-13 13:37:27 KJ4SQN-50.3 miles 263°2017-12-03 07:06:23
N8WJE1.5 miles 310°2017-12-13 13:50:20 KC5ZJO-11.6 miles 154°2017-12-13 13:54:31
KM4WOK B2.5 miles 26°2017-12-06 21:54:51 KM4WOK-B2.5 miles 26°2017-12-06 21:55:01
KV4PC-B2.6 miles 113°2017-11-30 09:52:26 KV4PC B2.6 miles 113°2017-11-30 09:52:16
FW12252.7 miles 87°2017-12-13 13:37:31 HUNSVR01B2.7 miles 101°2017-11-18 19:34:30
FW03513.0 miles 7°2017-12-13 13:53:01 EW27483.1 miles 178°2017-12-13 13:47:49
W4JT-23.1 miles 68°2017-12-07 21:15:11 W4JT-93.2 miles 67°2017-12-06 09:55:58
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.
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