Latest symbol  House (VHF)
Latest Packet:
Position Packet
Receive Time:
Latest Forwarded:
Receive Time:
Latest Comment:
KD4EG ZumSpot Salem Va 441.1250/441.1250 CC1
Receive Time:
(Received in latest packet)
Latest Position4:
37.3016666666667, -80.0678333333333
Receive Time:
(Received in latest packet)
Nearby locations:
Salem , United States 1.47 km
Cave Spring , United States 9.56 km
Roanoke , United States 11.69 km
Hollins , United States 11.88 km
Latest PHG6:
Power 1 W, Height 3 m, Gain 1 dB omni
(Calculated range: 3.61 km)
Latest used symbols:
Symbol  Symbol 
Packet frequency:
3s (Latest 2 packets)
Latest symbol
Search for KD4EG at QRZ.COM!

(Link to

Nearby stations/objects:
Symbol  N4SJK-N 1.47 km
Symbol  EW9753 7.74 km
Symbol  KI4LLA-1 8.79 km
Symbol  K4FDS 9.02 km
Symbol  AB3U-11  (WINLINK) 10.13 km
Symbol  EW4061 11.28 km
Symbol  KJ4PHQ-7 11.29 km
Symbol  FW1350 11.36 km
Symbol  EW1645 11.8 km
Symbol  FW1584 11.85 km
Symbol  N4BHM 12.18 km
Symbol  K4FDS-5 13.23 km
Symbol  441.8875D  (K4FDS) 13.43 km
Symbol  444.7750D  (K4FDS) 13.54 km
Symbol  FW0268 14.84 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

© 2015-2019 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

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