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Callsign, ship name or locator: Clear       
Stations near current position of Z FOUR
callsign distance last heard - EST      callsign distance last heard - EST
3681840500.4 miles 356°2025-01-26 03:52:09 LASSEN0.6 miles 326°2025-01-26 05:08:43
BETTY L0.8 miles 229°2025-01-25 13:53:07 DEL NORTE0.8 miles 248°2025-01-26 23:00:58
3670859400.8 miles 225°2025-01-26 15:53:38 3677489801.0 miles 350°2024-12-31 19:51:38
SYMPHONY1.0 miles 8°2025-01-25 13:46:13 BULLET1.0 miles 235°2025-01-25 17:01:28
CARINA 1.0 miles 239°2025-01-26 18:15:18 EMPRESS HORNBLOWER1.2 miles 131°2025-01-22 22:39:01
ASL TRINITY1.2 miles 256°2025-01-26 13:49:54 WOOYANG CLES1.2 miles 279°2025-01-24 16:42:10
COLLETTE C1.2 miles 140°2025-01-23 14:08:52 STEADFAST1.2 miles 329°2025-01-11 14:15:15
IRISH ROSE1.4 miles 244°2025-01-25 17:20:26 PELIKAN1.6 miles 224°2025-01-18 18:08:34
3673898401.6 miles 221°2025-01-13 19:20:43 3681442901.6 miles 187°2025-01-19 19:01:13
WEST WIND 1.6 miles 164°2025-01-23 14:01:56 INTINTOLI1.7 miles 187°2025-01-27 00:08:17
MERLOT COMMODORE1.7 miles 178°2025-01-25 18:46:54 3381575771.8 miles 89°2025-01-11 14:35:16
FLUX1.8 miles 243°2025-01-25 19:38:40 COASTAL MOON 1.9 miles 121°2025-01-11 16:22:25
MARE ISLAND1.9 miles 183°2025-01-26 20:06:54 GRACE1.9 miles 90°2025-01-25 16:01:25
WH6ETR2.2 miles 291°2025-01-20 13:24:38 SV MOON DANCE2.3 miles 54°2025-01-21 14:52:05
GOLDEN BEAR2.4 miles 187°2025-01-26 20:27:54 3383493162.5 miles 229°2025-01-02 13:48:04
QUIVER2.5 miles 203°2025-01-25 16:42:22 WANDERLUST IV2.6 miles 248°2025-01-18 11:43:46
MADONNA MIA2.6 miles 240°2025-01-25 16:45:24 3680938502.7 miles 216°2025-01-05 12:30:46
AHI2.7 miles 260°2025-01-19 16:43:25 3669757502.7 miles 216°2025-01-26 19:58:46
3673500502.7 miles 218°2025-01-26 18:41:02 ISLANDER2.7 miles 215°2025-01-14 13:22:42
SOLITARY2.7 miles 216°2025-01-23 09:17:28 SOLITON2.7 miles 319°2025-01-25 15:59:51
SAUSALITOBMPRESS2.7 miles 206°2025-01-24 23:49:46 3384500952.9 miles 216°2025-01-12 17:52:10
ROYAL_PRINCE3.0 miles 230°2025-01-26 21:16:16 PV GOLDEN GATE3.0 miles 199°2025-01-26 22:53:37
DW72133.0 miles 350°2025-01-27 01:15:20 ENHYDRA3.0 miles 194°2025-01-19 21:34:06
NADELOS3.0 miles 263°2025-01-19 15:30:01 3673382903.0 miles 198°2025-01-26 21:25:26
3389210003.0 miles 186°2025-01-09 18:45:22 T0WBOATUS_ALAMEDA3.1 miles 331°2025-01-26 18:58:29
FUME BLANC COMMODORE3.1 miles 195°2025-01-01 02:36:11 FIREBOAT 33.1 miles 225°2025-01-26 13:33:36
3383133933.2 miles 252°2025-01-26 12:40:54 C SQUARED3.2 miles 289°2025-01-25 16:29:50
FRANCESCA3.3 miles 277°2025-01-04 16:32:14 3680156903.3 miles 2°2025-01-25 18:12:25
3384427163.3 miles 265°2025-01-19 15:27:09 AMOR AL MAR3.3 miles 288°2025-01-25 16:02:10
STFYC LANGLAIS3.3 miles 219°2025-01-26 15:40:59 PETER M3.3 miles 16°2025-01-26 19:42:35
SEA SUITE3.3 miles 279°2025-01-14 14:33:30 3674220203.3 miles 17°2025-01-26 10:05:19
BAY MONARCH3.3 miles 210°2025-01-26 21:11:09 MA`S ROVER3.4 miles 209°2025-01-25 16:24:03
OLD BLUE3.4 miles 210°2025-01-08 14:26:07 STAR THROWER3.4 miles 207°2025-01-16 17:57:27
S/V RAPID3.5 miles 248°2025-01-24 15:04:07 3673697203.5 miles 17°2025-01-27 01:09:55
TERRI L.BRUSCO3.5 miles 26°2025-01-26 20:30:30 FINESSE3.5 miles 6°2024-12-31 17:46:54
3675147803.5 miles 18°2025-01-26 06:53:56 3383689943.5 miles 218°2025-01-09 16:12:41
APOLLO3.5 miles 189°2025-01-20 09:28:19 3677484903.5 miles 21°2025-01-24 09:52:14
MUDSHARK3.5 miles 277°2025-01-25 16:51:58 FOUR SEASONS II3.6 miles 282°2025-01-09 17:58:38
GREYHOUND3.6 miles 267°2025-01-25 16:22:34 3683876803.6 miles 216°2025-01-17 20:12:40
3667510603.6 miles 322°2025-01-06 13:33:18 WILDCARD 3.6 miles 276°2025-01-25 14:50:18
GERD MAERSK3.6 miles 170°2025-01-26 10:35:49 MYSTIC 3.6 miles 279°2025-01-19 18:39:46
P V CALIFORNIA3.6 miles 213°2025-01-23 13:18:37 3681699203.7 miles 204°2025-01-26 17:05:02
3673109903.7 miles 332°2025-01-16 11:59:52 SARAHBELLA 3.7 miles 239°2025-01-02 18:11:06
DEFIANT 3.7 miles 246°2025-01-18 17:31:02 NANTUCKET SLEIGHRIDE3.7 miles 216°2025-01-25 21:27:55
ANGEL ISLAND3.7 miles 286°2025-01-26 18:38:07 CALIFORNIAHORNBLOWER3.7 miles 184°2025-01-26 16:19:50
GEMINI3.8 miles 147°2025-01-25 00:07:19 PLUMERIA3.8 miles 247°2025-01-18 16:04:40
SV ATTITUDE 3.8 miles 222°2025-01-26 16:45:59 RUM TUM TUGGER3.8 miles 262°2025-01-25 15:39:53
FLY BOYS3.8 miles 275°2025-01-19 15:26:38 SV SLAINTE3.8 miles 270°2025-01-25 16:51:13
PRIME NUMBER3.8 miles 270°2025-01-26 14:06:18 NO MORE SEARCHING3.8 miles 249°2025-01-01 17:34:24
3682278103.9 miles 221°2025-01-09 13:35:42 RECONNAISSANCE3.9 miles 222°2025-01-15 18:29:26
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.
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