Latest symbol  Antenna
Latest Packet:
Object Packet
Receive Time:
WX3in1 Mini by Microsat
Latest Comment:
RU72 430.900 +7600
Receive Time:
(Received in latest packet)
Latest Position4:
51.5056666666667, -0.116333333333333
Receive Time:
(Received in latest packet)
Nearby locations:
City of Westminster , United Kingdom 631 m
London , United Kingdom 725 m
Lambeth , United Kingdom 1.09 km
Clerkenwell , United Kingdom 2.12 km
Latest PHG6:
Power 4 W, Height 49 m, Gain 6 dB omni
(Calculated range: 27.19 km)
Packet frequency:
818s (Latest 11 packets)
Latest symbol
Related stations/objects7:
Symbol  GB2GP  (M0BPQ-1)
Symbol  GB4YOL  (M0BPQ-1)
Symbol  M0BPQ-1
Symbol  GB3NL  (M0BPQ-1)
Symbol  M0BPQ-3
Nearby stations/objects:
Symbol  GB2RN  (M0XDC) 2.46 km
Symbol  M0HZQ-1 3.53 km
Symbol  M0HSL-10 4.55 km
Symbol  PS-M0XPX  (PE2KMV) 5.44 km
Symbol  TA1USA 8.46 km
Symbol  HS3PZA-9 8.66 km
Symbol  M6OLZ-N 10.03 km
Symbol  DW5621 10.48 km
Symbol  M0XPX-2 11.06 km
Symbol  M0KPU 11.36 km
Symbol  M6ORT-13 13.82 km
Symbol  M6ORT-10 13.87 km
Symbol  M0BEH 15.38 km
Symbol  GB3NL  (M0BPQ-1) 16.83 km
Symbol  M0HVC B  (M0HVC-S) 17.05 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.
  7. If station has more than 30 related stations we will only show the 30 closest related stations.
Initial position
Current position

© 2015-2018 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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