Latest symbol  Digipeater (digipeater is also an IGate)
Latest Packet:
Other Packet
Receive Time:
Latest Comment:
8/W1,SOn-N Fill-in 1200bps {UIV32N}
Receive Time:
Latest Status:
DX: JF2ZGN-3 34.52.72N 139.01.94E 45.6km 142E 17:50
Receive Time:
Latest Position4:
35.2036666666667, 138.726166666667
Receive Time:
Nearby locations:
Fuji, Japan 5.66 km
Fujinomiya, Japan 10.05 km
Susono, Japan 16.76 km
Numazu, Japan 17.21 km
Latest PHG6:
Power 9 W, Height 110 m, Gain 8 dB omni
(Calculated range: 56.06 km)
Nearby stations/objects:
Symbol  JA2YLN 16.31 km
Symbol  JP2YHA-I 17.1 km
Symbol  JJ2YIS-3 20.1 km
Symbol  JG2CTF-1 28.91 km
Symbol  JP2YHC-I 29.67 km
Symbol  7J1YAK-1 32.63 km
Symbol  JE2ZUF-10 33.14 km
Symbol  JJ2YMT-2 35.45 km
Symbol  JA2GSV-1 35.57 km
Symbol  JP2YGY-I 39.46 km
Symbol  JA2HZA-12 40.61 km
Symbol  JJ2YJG-1 42.73 km
Symbol  JJ2YJG-3 42.74 km
Symbol  7L3KIL-I 44.28 km
Symbol  JF1XMW-9 50.29 km

  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

© 2015-2017 Per Qvarforth SM4WJF
All Rights Reserved
Here you can change how long time a station should be visible.

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:


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