Source callsign:	WB6DTB-S
Comment:	440 Voice 431.00000MHz +0.0005MHz
Location:	37°59.37' N 121°44.20' W - locator CM97DX17OL - show map 4.0 miles West bearing 291° from Knightsen, Contra Costa County, California, United States [?] 4.4 miles North bearing 352° from Brentwood, Contra Costa County, California, United States 40.0 miles East bearing 68° from San Francisco, San Francisco County, California, United States 45.7 miles North bearing 11° from San Jose, Santa Clara County, California, United States
Last position:	2025-02-01 02:35:44 EST (22s ago) 2025-01-31 23:35:44 PST local time at Knightsen, United States [?]
Last path:	WB6DTB-S>APDG01 via TCPIP*,qAC,WB6DTB-GS
Positions stored:	1918

callsign		distance	last heard - EST		callsign		distance	last heard - EST
WB6DTB-B		0.0 yards 0°	2025-02-01 02:35:54		EW9135		1.7 miles 157°	2025-02-01 02:28:11
DW9278		1.7 miles 150°	2025-02-01 02:35:04		K6CQU-13		2.0 miles 102°	2025-02-01 02:35:18
N6ML		2.5 miles 136°	2025-01-18 05:30:16		K6MRP-10		2.5 miles 235°	2025-02-01 02:31:55
KO6ECK-4		4.1 miles 151°	2025-01-29 16:31:48		GW2334		4.5 miles 116°	2025-02-01 02:34:53
KB6LFM-9		6.1 miles 86°	2025-01-13 19:35:34		DW3588		6.3 miles 173°	2025-02-01 01:44:48
W6MEW		6.7 miles 277°	2025-02-01 02:16:38		K6BIV		7.1 miles 290°	2025-02-01 02:35:04
K6BIV-D		8.4 miles 292°	2025-02-01 02:21:42		K6BIV-Y		8.4 miles 292°	2025-02-01 02:21:32
KN6SGE-9		8.6 miles 278°	2025-01-23 21:17:21		N6SPP		8.9 miles 276°	2025-02-01 02:32:10
FW6305		9.1 miles 280°	2025-02-01 02:35:29		KA6QLP		9.5 miles 137°	2025-02-01 01:10:12
KG6QET		10.6 miles 279°	2025-01-28 23:15:14		KG6QET-7		10.6 miles 279°	2025-01-28 23:21:26

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.