Latest symbol  D-STAR (D-PRS IGate)
Latest Packet:
Position Packet
Receive Time:
ircDDB Gateway (dstar) by Jonathan, G4KLX
Latest Comment:
440 Voice 430.81000MHz +0.0000MHz
Receive Time:
(Received in latest packet)
Latest Position4:
34.8158333333333, 135.3425
Receive Time:
(Received in latest packet)
Nearby locations:
Takarazuka , Japan 1.4 miles
Itami , Japan 3.98 miles
Kawanishi , Japan 4.21 miles
Ikeda , Japan 4.97 miles
Latest RNG6:
1 miles
Packet frequency:
1090s (Latest 11 packets)
Latest symbol
Search for JA3ZFL at QRZ.COM!

(Link to

Related stations/objects7:
Nearby stations/objects:
Symbol  JA3ZFL A 0 yd
Symbol  JP3YDH-I 5.66 miles
Symbol  JN3VDE-10 6.29 miles
Symbol  JF3UYN-10 6.94 miles
Symbol  JR3VK-I 7.49 miles
Symbol  JF3PZN-9 12.62 miles
Symbol  7J3ACR-10 13.04 miles
Symbol  JP3YIN-I 13.4 miles
Symbol  JA3QOS-13 13.44 miles
Symbol  JR5VL-I 13.86 miles
Symbol  JL3ZDI-10 13.98 miles
Symbol  JP3YID-I 14.1 miles
Symbol  JH1BEC-9 14.84 miles
Symbol  JR3VG-I 14.98 miles
Symbol  JA3VQW-10 18.25 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. RNG is the "pre-calculated omni-directional radio range" of the station (reported by the station itself). If this station has reported several positions or symbols the RNG data will only be used for the position and symbol used in the RNG-packet. It seems like many D-STAR station use the RNG value to specifify D-STAR range.
  7. If station has more than 30 related stations we will only show the 30 closest related stations.
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