Comment:	Sam GSM
Location:	52°11.75' N 4°25.57' E - locator JO22FE16DX - show map 326.2 m Northeast bearing 56° from Katwijk aan den Rijn, Gemeente Katwijk, South Holland, Netherlands [?] 1.2 km Northwest bearing 302° from Rijnsburg, Gemeente Katwijk, South Holland, Netherlands 30.6 km North bearing 353° from Rotterdam, Gemeente Rotterdam, South Holland, Netherlands 37.2 km Southwest bearing 238° from Amsterdam, Gemeente Amsterdam, North Holland, Netherlands
Last position:	2025-08-13 09:43:07 UTC (3d 2h1m ago) 2025-08-13 11:43:07 CEST local time at Katwijk aan den Rijn, Netherlands [?]
Altitude:	48 m
Course:	151°
Speed:	6 km/h
Device:	Open Source: APRSdroid (app, Android)
Last path:	PD2NS-5>APDR16 via TCPIP*,qAC,T2CZECH
Positions stored:	759
Other SSIDs:	PD2NS-7

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.