Latest symbol  Antenna
Latest Packet:
Position Packet
Receive Time:
Telemetry devices
Latest Forwarded:
Receive Time:
Latest Comment:
APRS144.640MHz TNC is Powered by SolarEnergy 13.4V 20.6C
Receive Time:
(Received in latest packet)
Latest Position4:
32.2146666666667, 119.435166666667
Receive Time:
(Received in latest packet)
Nearby locations:
Zhenjiang , China 1.19 miles
Zhengdonglu , China 2.56 miles
Qilidian , China 3.02 miles
Guyang , China 5.49 miles
Latest PHG6:
Power 25 W, Height 39 ft, Gain 8 dB omni
(Calculated range: 14.99 miles)
Packet frequency:
54s (Latest 11 packets)
Latest symbol
Search for BG4WDV at QRZ.COM!

(Link to

Related stations/objects7:
Nearby stations/objects:
Symbol  BG4WDV-13 657 yd
Symbol  BY4RB-13 3.08 miles
Symbol  BY4RB-10 3.79 miles
Symbol  BG4XUX-9 4.65 miles
Symbol  BH4WCW-10 15.85 miles
Symbol  BH4WCW-3 16.9 miles
Symbol  BH4WAD-8 19.56 miles
Symbol  BG4XTW-6 20.18 miles
Symbol  BR4SYZ-10 21.07 miles
Symbol  BI4TAM-2 21.12 miles
Symbol  BH4WAL-10 21.19 miles
Symbol  BR4SYZ-3 22.23 miles
Symbol  BH4WAL-2 22.68 miles
Symbol  BI4QJF-13 23.35 miles
Symbol  BH4WAL-6 23.64 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