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 MARS-13 - show graphs
Comment: RX-only iGate, Raspberry Pi Zero 2, Nooelec RTL-SDR v5
Location: 37°53.49' N 122°37.40' W - locator CM87QV53EX - show map
3.6 miles East bearing 110° from Bolinas, Marin County, California, United States [?]
4.4 miles West bearing 257° from Mill Valley, Marin County, California, United States
13.7 miles Northwest bearing 306° from San Francisco, San Francisco County, California, United States
55.1 miles Northwest bearing 314° from San Jose, Santa Clara County, California, United States
Last position: 2024-06-07 17:29:44 EDT (7d 19h30m ago)
2024-06-07 14:29:44 PDT local time at Bolinas, United States [?]
Device: WB2OSZ: DireWolf
Last path: MARS-13>APDW17 via qAO,MARS-13
Positions stored: 5
Other SSIDs: MARS-9 MARS-5 MARS-3 MARS-4 MARS-2 MARS-1 MARS-10 MARS-15 MARS-6 MARS-7
Last heard a station directly: 2024-05-04 22:15:38 EDT (41d 14h44m ago)
Stations near current position of MARS-13 - show more
callsign distance last heard - EDT      callsign distance last heard - EDT
K6DRK-60.0 yards 0°2024-06-09 14:38:44 N6DVS-70.5 miles 84°2024-06-09 14:05:23
K6DRK-110.9 miles 303°2024-06-08 14:55:44 EW99392.4 miles 43°2024-06-13 16:45:53
W6/CC-0632.7 miles 33°2024-06-09 13:42:53 EW82843.0 miles 89°2024-06-15 12:45:29
KN6RST-73.4 miles 82°2024-06-09 15:02:35 NZ6J-133.6 miles 44°2024-06-15 12:16:07
MARS-94.3 miles 93°2024-06-10 21:25:36 DW70944.3 miles 70°2024-06-15 11:45:09
NZ6J4.3 miles 93°2024-06-07 22:50:48 K6GWE-54.3 miles 93°2024-06-10 09:57:12
MARS6J-74.4 miles 93°2024-05-22 20:46:39 MARS6J-84.4 miles 93°2024-05-24 01:34:57
KB6HOH-114.4 miles 90°2024-06-15 12:07:11 AG6FR4.6 miles 79°2024-05-17 20:01:17
W6TVO-74.6 miles 127°2024-05-27 15:36:42 GW29695.0 miles 77°2024-06-15 12:55:25
DW31535.7 miles 82°2024-06-15 02:32:11 FW20015.8 miles 34°2024-06-15 12:59:02
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.
User guide · 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