Station info - map view · info · telemetry · weather · raw · status · beacons · messages · bulletins · browse · moving · my account
Callsign, ship name or locator: Clear       
It is possible to search using wildcards (*?) after a prefix. Example: OH*
APRS station SRS1BA - show graphs
Comment: APRS-IS for Win32
Location: 41°42.92' N 88°15.29' W - locator EN51UR91KQ - show map
4.2 miles East bearing 87° from Boulder Hill, Kendall County, Illinois, United States [?]
4.6 miles Southeast bearing 133° from Aurora, Kane County, Illinois, United States
32.5 miles West bearing 254° from Chicago, Cook County, Illinois, United States
Last position: 2025-01-21 16:43:59 EST (11d 2h35m ago)
2025-01-21 15:43:59 CST local time at Boulder Hill, United States [?]
Last telemetry: 2025-01-20 21:40:56 EST (11d 21h38m ago) – show telemetry
Battery: 79 Percent, Charging/AC: 48 Charge/On/Off, GPS+Sat: 2 Sats/On/Off, Current: 0 mA, A5: 0 N/A
 A/C     Charging     GPS     B4     B5     B6     B7     B8 
Device: KJ4ERJ: APRSIS32 (software, Windows)
Last path: SRS1BA>APWW11 via TCPIP*,qAC,T2TAS
Positions stored: 3
Last heard a station directly: 2025-01-21 01:59:05 EST (11d 17h20m ago)
Stations near current position of SRS1BA - show more
callsign distance last heard - EST      callsign distance last heard - EST
SRS1-151.6 yards 323°2025-01-25 18:07:19 SRS151.6 yards 323°2025-02-01 11:50:35
MED13-5339.9 yards 162°2025-01-26 00:52:47 SRS1-4420.6 yards 215°2025-01-24 22:45:52
SRS1-15469.4 yards 187°2025-01-20 21:32:13 SRS1-12471.6 yards 189°2025-01-27 02:01:43
N9HXR-11.0 miles 354°2025-01-04 10:35:35 KD9PKQ-11.2 miles 4°2025-02-01 17:46:55
GW01821.7 miles 54°2025-01-31 14:33:41 EW98532.3 miles 114°2025-02-01 19:15:58
N9HXR-102.4 miles 6°2025-01-22 04:04:42 KD9YQK-23.6 miles 330°2025-01-11 17:13:51
N9VDQ-13.7 miles 261°2025-01-21 20:23:00 N9HXR-64.2 miles 9°2025-02-01 19:17:06
N9HXR-74.2 miles 9°2025-01-03 10:51:10 N9HXR-D4.2 miles 9°2025-02-01 19:14:27
NC9J-14.3 miles 105°2025-01-09 21:04:28 KE7ENX4.5 miles 157°2025-01-08 21:03:16
K9QA-94.7 miles 243°2025-01-27 07:43:08 CW94635.0 miles 214°2025-02-01 19:15:52
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.
User guide · FAQ · Blog · Discussion group · Linking to aprs.fi · AIS sites · Service status · Database statistics · Advertising on aprs.fi · Technical details · API · Change log · Planned changes · Credits and thanks · Terms Of Service · iPhone/iPad APRS