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APRS station KJ4TMM-9 - show graphs
Comment: 154.055MHz Mark
Mic-E message: In service
Location: 33°21.45' N 86°51.33' W - locator EM63NI75IT - show map
6.9 km North bearing 351° from Helena, Shelby County, Alabama, United States [?]
13.1 km North bearing 344° from Alabaster, Shelby County, Alabama, United States
18.8 km South bearing 195° from Birmingham, Jefferson County, Alabama, United States
121.7 km Northwest bearing 335° from Montgomery, Montgomery County, Alabama, United States
Last position: 2025-11-24 17:36:53 UTC (6d 12h56m ago)
2025-11-24 11:36:53 CST local time at Helena, United States [?]
Altitude: 190 m
Course: 260°
Speed: 31 km/h
Device: Yaesu: FTM-400DR (rig)
Last path: KJ4TMM-9>S3RQ4U via WA4TAL-2,WIDE1,W4AP-2*,WIDE2,qAR,N4LTX-4 (good)
Positions stored: 1557
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.
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