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 SAG-4 - show graphs
Map loading...
Comment: Columbia Avenue, Holland, Michigan, US dBm:-95 sats:9 V:3.96 !BikeMS! W8CMN
Location: 42°47.17' N 86°05.94' W - locator EN62WS88CQ - show map - static map
0.5 miles East bearing 101° from Holland, Ottawa County, Michigan, United States [?]
4.5 miles Southwest bearing 246° from Zeeland, Ottawa County, Michigan, United States
25.0 miles Southwest bearing 241° from Grand Rapids, Kent County, Michigan, United States
42.9 miles Northwest bearing 323° from Kalamazoo, Kalamazoo County, Michigan, United States
Last position: 2018-06-10 16:03:11 EDT (11d 19h27m ago)
2018-06-10 16:03:11 EDT local time at Holland, United States [?]
Altitude: 609 ft
Course: 148°
Speed: 1 MPH
Last telemetry: 2017-10-08 14:24:32 EDT (256d 21h6m ago) – show telemetry
Battery: 369 Percent, Charging/AC: 617 Charge/On/Off, GPS+Sat: 0 Sats/On/Off, A4: 0 N/A, A5: 0 N/A
 A/C     Charging     GPS     B4     B5     B6     B7     B8 
Last path: SAG-4>TRACC via TCPIP*,qAS,W8CMN-GW
Positions stored: 44058
Stations near current position of SAG-4 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
SAG-26.6 yards 204°2018-06-10 14:46:29 SAG-69.2 yards 157°2018-06-10 14:24:36
WF5X-1114.6 yards 180°2018-06-10 13:00:01 SAG-518.5 yards 255°2018-06-10 13:57:15
SAG-719.3 yards 199°2018-06-10 15:35:18 MED-319.6 yards 159°2018-06-10 14:13:27
WF5X-1019.9 yards 204°2018-06-10 15:06:36 SUPPLY-222.4 yards 84°2018-06-10 15:09:50
MED-239.5 yards 170°2018-06-10 15:13:36 MED-139.5 yards 170°2018-06-10 16:01:09
SAG-140.3 yards 201°2018-06-08 22:39:52 SUPPLY-162.4 yards 159°2018-06-10 14:42:46
EW1019339.6 yards 16°2018-05-31 07:46:13 KC0QLU-71.4 miles 157°2018-06-11 21:42:44
KD8THX-101.5 miles 240°2018-06-22 11:27:17 KD8THX-152.2 miles 230°2018-06-18 15:02:34
CW93722.3 miles 333°2018-06-22 11:30:31 K8RJB-92.4 miles 332°2018-06-21 15:07:02
K0TWB-93.1 miles 48°2018-06-22 11:24:33 KE8DXB-93.9 miles 65°2018-06-21 22:38:20
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