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 KS1G-4 - show graphs
Map loading...
Comment: 145.310MHz
Mic-E message: In service
Location: 38°59.25' N 77°23.74' W - locator FM18HX27MA - show map - static map
1.3 miles Northwest bearing 337° from Herndon, Fairfax County, Virginia, United States [?]
4.3 miles North bearing 4° from Oak Hill, Fairfax County, Virginia, United States
20.3 miles West bearing 288° from Washington, D. C., Washington, D.C., United States
46.9 miles Southwest bearing 244° from Baltimore, City of Baltimore, Maryland, United States
Last position: 2017-01-19 17:09:48 EST (2d 1h44m ago)
2017-01-19 17:09:48 EST local time at Herndon, United States [?]
Altitude: 381 ft
Course: 11°
Speed: 28 MPH
Device: Kenwood: TM-D710 (rig)
Last path: KS1G-4>S8UY2U via WIDE1-1,WIDE2-1,qAR,KS1G-1 (good)
Positions stored: 22712
Packet rate: 47 seconds between packets on average during 474 seconds.
Other SSIDs: KS1G-1 KS1G-10
Stations near current position of KS1G-4 - show more
callsign distance last heard - EST      callsign distance last heard - EST
KD2AVG-90.8 miles 22°2017-01-21 13:14:35 KS1G-11.0 miles 38°2017-01-21 18:38:27
N2LEE-101.4 miles 128°2017-01-21 18:37:54 W3RST-91.7 miles 11°2017-01-09 13:29:09
DW86011.9 miles 54°2017-01-21 18:48:28 KD2AVG-102.0 miles 255°2017-01-08 12:52:36
145.31DLS2.1 miles 220°2017-01-21 18:31:00 KG4TIH-52.2 miles 14°2017-01-17 22:19:11
N4TVC-72.3 miles 135°2017-01-12 11:36:07 N4LWW-92.3 miles 185°2017-01-20 07:07:24
KG4ICG2.4 miles 171°2017-01-15 23:18:25 DW46992.4 miles 95°2017-01-21 18:53:16
KG4TIH-12.4 miles 20°2017-01-21 03:13:25 N4JOG-22.5 miles 299°2017-01-04 09:31:07
KG4UPR-92.5 miles 0°2017-01-21 16:35:44 N1RM-62.6 miles 141°2017-01-15 13:28:14
DG8PZ-52.6 miles 299°2017-01-04 17:47:32 N1RM-72.6 miles 140°2017-01-04 22:51:11
N1RM-12.6 miles 140°2017-01-21 18:31:01 WD7RSQ-42.7 miles 173°2017-01-13 10:06:56
Stations which heard KS1G-4 directly on radio –
callsign pkts first heard - EST last heard longest (tx => rx) longest at - EST
N3KTX-4 1 2017-01-06 16:15:02 2017-01-06 16:15:02 FM19HA > FM19AP 53.1 miles 326° 2017-01-06 16:15:02
KV3B-1 2 2017-01-12 07:24:48 2017-01-19 17:09:21 FM18GW > FM19JE 19.4 miles 30° 2017-01-12 07:24:48
W4TTU 22 2017-01-06 16:14:00 2017-01-19 17:08:46 FM18HX > FM19HB 5.1 miles 5° 2017-01-11 17:55:54
N1RM-1 2 2017-01-06 17:18:56 2017-01-06 17:23:36 FM18HX > FM18HW 1.4 miles 130° 2017-01-06 17:23:36
KK4ZUU 1 2017-01-12 07:30:21 2017-01-12 07:30:21 FM18GV > FM18GT 4.1 miles 171° 2017-01-12 07:30:21
KS1G-1 7 2017-01-06 16:29:03 2017-01-19 17:09:48 FM18HX > FM18HX 2.1 miles 14° 2017-01-11 17:53:24

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.
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