Latest symbol  D-STAR (D-PRS IGate)
Latest Packet:
Object Packet
Receive Time:
Latest Comment:
2/D-STAR NoraGateway 144.52MHz
Receive Time:
(Received in latest packet)
Latest Position4:
37.2058333333333, 138.304166666667
Receive Time:
(Received in latest packet)
Nearby locations:
Jōetsu , Japan 5.45 miles
Myoko , Japan 13.3 miles
Arai , Japan 14.82 miles
Kashiwazaki , Japan 17.5 miles
Latest PHG6:
Power 4 W, Height 20 ft, Gain 2 dB omni
(Calculated range: 4.75 miles)
Latest symbol
Search for JH0ZMR D at QRZ.COM!

(Link to

Related stations/objects7:
Nearby stations/objects:
Symbol  JH0ZMR-10 0 yd
Symbol  NG-JH0ZMR 0 yd
Symbol  EL-462884 0 yd
Symbol  JH0ZMR 0 yd
Symbol  JH0ZMR-D 0 yd
Symbol  JA0QEV-10 5.68 miles
Symbol  JP0YEB-I 10.51 miles
Symbol  JR0YBR-10 22.73 miles
Symbol  JP0YEF-I 25.11 miles
Symbol  JJ0MKB-10 27.16 miles
Symbol  JP0YEA-I 32.37 miles
Symbol  JA0BES-13 37.44 miles
Symbol  EL-249199 38.17 miles
Symbol  JH0JRL-10 38.18 miles
Symbol  JR0ZFO-10 38.4 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.
  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:


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