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 object YO4FRF C - show graphs
Map loading...
Source callsign: YO4FRF-S
Comment: 2m Voice 145.55500MHz +0.0000MHz
Location: 44°10.80' N 28°37.90' E - locator KN44HE53TE - show map - static map
0.9 miles West bearing 256° from Constanţa, Municipiul Constanţa, Constanţa, Romania [?]
6.8 miles Southeast bearing 152° from Ovidiu, Oraş Ovidiu, Constanţa, Romania
75.5 miles Northeast bearing 28° from Varna, Obshtina Varna, Varna, Bulgaria
Last position: 2018-02-07 16:10:15 EST (13d 23h22m ago)
2018-02-07 23:10:15 EET local time at Constanţa, Romania [?]
Last path: YO4FRF-S>APDG01 via TCPIP*,qAC,YO4FRF-GS
Positions stored: 15
Stations near current position of YO4FRF C - show more
callsign distance last heard - EST      callsign distance last heard - EST
YO4FRF-C0.0 yards 0°2018-02-07 16:10:24 YO4J122.7 yards 71°2018-02-21 15:16:39
YO4ISC-100.7 miles 140°2018-02-21 15:27:26 YO4ISC-110.7 miles 140°2018-02-18 10:43:26
YO4ISC-120.7 miles 140°2018-02-18 16:37:11 YO4ISC-90.7 miles 138°2018-02-18 15:31:42
YO4ESB-R1.5 miles 347°2018-02-21 15:30:08 YO4ESB-91.5 miles 347°2018-01-28 15:53:50
YO4ESB-101.5 miles 347°2018-02-13 03:08:06 YO4KCA/B1.7 miles 259°2018-02-21 15:00:55
YO4ITU-WX1.9 miles 147°2018-02-21 15:30:15 YO4SIA-52.8 miles 181°2018-02-21 06:59:18
YO9INA/35.5 miles 326°2018-02-20 16:21:08 Agigea5.5 miles 179°2018-02-20 16:52:39
YO4FYQ-157.4 miles 256°2018-02-21 15:24:30 YO4FYQ-57.4 miles 256°2018-02-17 08:09:35
YO4ISC-D13.4 miles 183°2018-02-01 16:00:05 LRCK14.4 miles 331°2018-02-21 15:08:36
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