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 W4KPR-7 - show graphs
Map loading...
Comment: CERT-7
Location: 38°18.86' N 122°17.20' W - locator CM88UH55OK - show map - static map
1.2 miles North bearing 357° from Napa, Napa County, California, United States [?]
7.2 miles Southeast bearing 146° from Yountville, Napa County, California, United States
37.9 miles North bearing 11° from San Francisco, San Francisco County, California, United States
70.6 miles North bearing 343° from San Jose, Santa Clara County, California, United States
Last position: 2017-02-28 13:51:31 EST (360d 4h58m ago)
2017-02-28 10:51:31 PST local time at Napa, United States [?]
Altitude: 78 ft
Course:
Device: Byonics: TinyTrak3 (tracker)
Last path: W4KPR-7>APT3A2 via N6ZX-3*,WIDE2-1,qAR,K6RPT (good)
Positions stored: 2
Other SSIDs: W4KPR W4KPR-5
Stations near current position of W4KPR-7 - show more
callsign distance last heard - EST      callsign distance last heard - EST
AJ4BB-515.3 yards 270°2018-02-14 19:09:34 KM4YRA26.5 yards 337°2018-01-30 11:04:23
KD2ONQ28.2 yards 330°2018-02-03 22:42:21 NE4AM-140.6 yards 311°2018-02-22 10:00:42
KE6BEA1.5 miles 158°2018-02-23 10:54:53 AA6AV2.0 miles 300°2018-02-23 16:52:40
AA6AV-102.0 miles 300°2018-02-23 18:46:50 KI6MLK-53.0 miles 141°2018-02-15 19:47:57
FW01874.5 miles 54°2018-02-23 18:43:12 EW68606.0 miles 222°2018-02-23 18:36:18
W6DDU-77.2 miles 321°2018-02-17 21:08:10 NJ6E-68.9 miles 256°2018-02-23 18:45:52
EW24229.5 miles 79°2018-02-23 18:45:31 KI6TDP-310.2 miles 256°2018-02-17 02:00:15
FW105810.9 miles 171°2018-02-23 18:46:42 W6YAR11.5 miles 54°2018-01-26 17:55:31
VACA11.5 miles 54°2018-02-23 18:44:53 KK6BXP-1012.9 miles 108°2018-02-18 19:49:38
CW694413.0 miles 139°2018-02-23 18:35:20 EW607913.3 miles 104°2018-02-23 18:48:50
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