Latest symbol  Digipeater (LIMITED New n-N Paradigm digi)
Latest Packet:
Position Packet
Receive Time:
APN383 via KC9SZ-15*,WIDE2-1,qAR,K0ATT-10
KPC-3 by Kantronics
Latest Forwarded:
Receive Time:
Latest Comment:
Wn,W2,SIn Digi Alto Pass IL
Receive Time:
(Received in latest packet)
Latest Position4:
37.5575, -89.3458333333333
Receive Time:
(Received in latest packet)
Nearby locations:
Cobden , United States 5.37 miles
Jonesboro , United States 8.46 miles
Anna , United States 8.63 miles
Murphysboro , United States 14.31 miles
Latest PHG6:
Power 9 W, Height 249 ft, Gain 0 dB omni
(Calculated range: 18.31 miles)
Packet frequency:
1848s (Latest 9 packets)
Latest symbol
Search for W1OB at QRZ.COM!

(Link to

Nearby stations/objects:
Symbol  KC9WSM-6 8.64 miles
Symbol  N9RRM-10  (WINLINK) 11.95 miles
Symbol  VE1LRL-9 19.92 miles
Symbol  KU9R-10 20.93 miles
Symbol  W9RY-N 21.97 miles
Symbol  W9RY-10  (WINLINK) 21.99 miles
Symbol  W9RY-3 23.63 miles
Symbol  CW5752 24.7 miles
Symbol  WB0VTM-7 30.23 miles
Symbol  DW3094 30.26 miles
Symbol  N9AZZ 33.21 miles
Symbol  FW2807 37.52 miles
Symbol  CM FD  (KD9IWV) 39.87 miles
Symbol  KC9SZ-15 40.15 miles
Symbol  N9TWG-14 45.53 miles

  1. A packet is either recived from the regular APRS-IS servers or from the CWOP servers. Packets received from the APRS-IS servers are sent from ham radio operators, and packets received from the CWOP servers are sent from citizen weather stations.
  2. To get a better understanding of the APRS path I recommend reading the explanation written by wa8lmf.
  3. Used Aprs Device according to the APRS device identification database.
  4. Position accordning to the Google geocoding service, based on the reported latitude and longitude (if we get no valid position from the Google gecoding service we will show the latitude and longitude).
  5. This is the Maidenhead Grid Square Locator, used by ham radio operators to specify a location (using few characters).
  6. PHG stands for Power-Height-Gain (and directivity). The height is not the height above sea-level, it is the height above average terrain (HAAT = Height Above Average Terrain). PHG is used to calculate the relative RF range of a station. If this station has reported several positions or symbols the PHG data will only be used for the position and symbol used in the PHG-packet.
Initial position
Current position

© 2015-2019 Per Qvarforth SM4WJF
All Rights Reserved

In this tab we show all APRS packets of any packet type that has been added to the map.

In this tab we show APRS packets of type position that has been added to the map (note that any station may send a position packet).

In this tab we show all APRS packets of type object or item that has been added to the map.

In this tab we show APRS packets of type weather that has been added to the map (note that any station may send a weather packet, not only weather stations).

In this tab we show APRS packets of type direction finding, telemetry, message, query and status that has been added to the map.

Select date and time to show map data for (enter time for your locale time zone). The regular time length select box can still be used to select how old data that should be shown (relative to selected date and time).

*Note that the heatmap will still based on data from the latest hour (not the selected date and time).

Date and time:


APRS Direct

Current time is:


Station filter

Loading Loading
Searching Searching