Latest symbol  Antenna
Latest Packet:
Position Packet
Receive Time:
Latest Comment:
KP4BW-R rpt 440.025+ PL141.3 (Allstar 40356 & Echolink 255952)
Receive Time:
(Received in latest packet)
Latest Position4:
18.2361666666667, -65.813
Receive Time:
(Received in latest packet)
Nearby locations:
Peña Pobre , Puerto Rico 1.55 miles
Río Blanco , Puerto Rico 2.03 miles
Pueblito del Rio , Puerto Rico 3.32 miles
Antón Ruiz , Puerto Rico 3.53 miles
Latest PHG6:
Power 25 W, Height 39 ft, Gain 9 dB omni
(Calculated range: 15.88 miles)
Packet frequency:
545s (Latest 11 packets)
Latest symbol
Search for KP4BW at QRZ.COM!

(Link to

Related stations/objects7:
Symbol  KP4BW-2
Nearby stations/objects:
Symbol  FW4300 1.22 miles
Symbol  447.175  (WP4YF-5) 8.05 miles
Symbol  CW8822 13.26 miles
Symbol  FW2480 14.18 miles
Symbol  EW6754 15.18 miles
Symbol  NP3QL-2 16.29 miles
Symbol  KP4OSP 18.61 miles
Symbol  449.900  (WP4YF-5) 19.76 miles
Symbol  WP4YF-5 19.76 miles
Symbol  MARQSA 19.86 miles
Symbol  CW5318 20.42 miles
Symbol  KP4TP 20.58 miles
Symbol  KP4TP-3 20.61 miles
Symbol  KP4AG-B 21.68 miles
Symbol  DW7249 22.62 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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