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-5 - show graphs
Map loading...
Comment: CERT-5
Location: 38°18.88' N 122°17.21' W - locator CM88UH55NM - 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
38.0 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 14:28:08 EST (292d 1h58m ago)
2017-02-28 11:28:08 PST local time at Napa, United States [?]
Altitude: 98 ft
Course: 142°
Device: Byonics: TinyTrak3 (tracker)
Last path: W4KPR-5>APT3A2 via WB6IVK-1*,WIDE2-1,qAR,K6SJC-1 (good)
Positions stored: 2
Other SSIDs: W4KPR W4KPR-7
Stations near current position of W4KPR-5 - show more
callsign distance last heard - EST      callsign distance last heard - EST
AA6AV-102.0 miles 300°2017-12-17 16:17:51 KI6MLK-92.3 miles 162°2017-11-22 21:01:28
KE6SAR-122.8 miles 140°2017-12-03 13:13:51 KI6MLK-53.0 miles 141°2017-12-14 10:59:01
KB6VY-74.2 miles 192°2017-12-14 20:39:05 FW01874.5 miles 54°2017-12-17 16:15:09
EW68606.0 miles 222°2017-12-17 16:20:11 W6DDU-77.2 miles 321°2017-12-17 02:13:12
KAPC7.9 miles 179°2017-12-13 13:46:44 NJ6E-68.9 miles 256°2017-12-17 16:23:32
KI6TDP-39.3 miles 260°2017-12-15 23:35:36 EW24229.5 miles 79°2017-12-17 16:25:40
KI6TDP9.9 miles 242°2017-12-17 16:05:33 FW105811.0 miles 171°2017-12-17 16:23:48
K6AKK11.5 miles 123°2017-11-23 15:47:03 K6ASF-211.5 miles 56°2017-12-03 19:27:53
W6YAR11.5 miles 54°2017-12-17 16:15:20 VACA11.5 miles 54°2017-12-17 16:26:28
KK6BXP-1011.8 miles 137°2017-12-08 21:03:01 KE6BEA12.8 miles 108°2017-12-16 18:13:47
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