Source callsign:	CT4TX
Comment:	# OBRAS (Metro Mondego)
Location:	40°12.81' N 8°24.80' W - locator IN50TF01JF - show map 1.0 km Northeast bearing 31° from Coimbra, Coimbra, Coimbra, Portugal [?] 13.0 km Northeast bearing 34° from Condeixa a Nova, Condeixa-A-Nova, Coimbra, Portugal 105.3 km South bearing 171° from Porto, Porto, Porto, Portugal
Last position:	2025-12-06 18:37:50 UTC (4d 15h6m ago) 2025-12-06 18:37:50 WET local time at Coimbra, Portugal [?]
Last path:	CT4TX>APU25N via TCPIP*,qAC,PORTUGAL
Positions stored:	2
Others sourced by CT4TX:	DIGI01 INFOS OBRAS
Other SSIDs:	OBRAS

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.