Latest symbol  D-STAR (D-PRS IGate)
Latest Packet:
Position Packet
Receive Time:
ircDDB Gateway (dstar) by Jonathan, G4KLX
Latest Forwarded:
Receive Time:
Latest Comment:
440 Voice 430.99000MHz +0.0000MHz
Receive Time:
(Received in latest packet)
Latest Position4:
42.73, 141.773833333333
Receive Time:
(Received in latest packet)
Nearby locations:
Chitose , Japan 14.05 km
Tomakomai , Japan 17.36 km
Eniwa , Japan 24.31 km
Kitahiroshima , Japan 32.11 km
Latest RNG6:
1.61 km
Packet frequency:
92s (Latest 3 packets)
Latest symbol
Search for JR8YOM at QRZ.COM!

(Link to

Related stations/objects7:
Nearby stations/objects:
Symbol  JR8YOM B  (JR8YOM-S) 23 m
Symbol  JJ8EMJ-3 8.46 km
Symbol  JA8ZQT-10 16.68 km
Symbol  JI8BRZ-13 26.2 km
Symbol  JR8YJD-3 26.49 km
Symbol  JR8YJC-13 34.04 km
Symbol  JR8YJC-I 34.04 km
Symbol  JI8TEY-10 38.62 km
Symbol  JI8TEY-13 38.62 km
Symbol  JH8OVN-R 38.76 km
Symbol  JH8OVN-13 38.76 km
Symbol  JH8OVN-I 38.76 km
Symbol  JH8OVN R  (JH8OVN-S) 38.76 km
Symbol  JE8QJH-3 42.2 km
Symbol  JE8DBM-1 48.07 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. 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