Source callsign:	PI4ADH-S
Comment:	440 Voice 431.80000MHz +0.0000MHz
Location:	52°55.75' N 4°46.85' E - locator JO22JW33QA - show map 2.3 miles Southeast bearing 157° from Den Helder, Gemeente Den Helder, North Holland, Netherlands [?] 8.7 miles South bearing 185° from Den Burg, Gemeente Texel, North Holland, Netherlands 38.6 miles North bearing 353° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands 70.7 miles North bearing 10° from Rotterdam, Gemeente Rotterdam, South Holland, Netherlands
Last position:	2024-05-09 15:02:24 EDT (13d 8h34m ago) 2024-05-09 21:02:24 CEST local time at Den Helder, Netherlands [?]
Altitude:	10 ft
Last path:	PI4ADH-S>APDG01 via TCPIP*,qAC,PI4ADH-GS
Positions stored:	4

callsign		distance	last heard - EDT		callsign		distance	last heard - EDT
PI4ADH-B		0.0 yards 0°	2024-05-09 15:02:34		PA7X-9		0.8 miles 305°	2024-05-14 08:21:21
PA7X-10		0.9 miles 305°	2024-05-22 23:36:09		PD9WTN		1.0 miles 0°	2024-05-16 03:25:05
NAVIGA		1.2 miles 348°	2024-05-19 20:17:37		ALABORG [GUARD]		1.3 miles 348°	2024-05-18 21:19:56
PELICAN 1		1.3 miles 349°	2024-05-18 21:31:41		BREAKER		1.3 miles 349°	2024-05-18 19:44:59
HENDRIK KARSSEN		1.4 miles 348°	2024-05-19 20:47:40		CHRISTOFFEL		1.4 miles 5°	2024-05-18 16:46:14
NAUTICAL SURVEYOR.		1.4 miles 351°	2024-05-18 16:43:01		OFFSHORE PERFORMER		1.5 miles 4°	2024-05-18 16:17:44
MERCUUR		1.5 miles 6°	2024-05-19 20:41:20		HD35 NOORDERLICHT		1.6 miles 3°	2024-05-18 16:27:57
Z201 PIETER SENIOR		1.6 miles 2°	2024-05-09 22:49:48		DUIKIE		1.6 miles 162°	2024-05-18 16:26:52
AVIA EXPRESS		1.6 miles 162°	2024-05-18 19:47:40		GLOMAR VENTURE		1.7 miles 1°	2024-05-18 16:12:53
UK210 CHRISTINAMARIA		1.7 miles 0°	2024-05-18 21:14:35		PD9WTN B		1.7 miles 296°	2024-05-22 23:23:23

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.