Latest symbol  Digipeater
Latest Packet:
Position Packet
Receive Time:
Aprx (software, Linux/Unix) by Kenneth W. Finnegan, W6KWF
Latest Forwarded:
Receive Time:
Latest Comment:
Digi Lublin APRX, aliasy:WIDE,LU,SD,SP op. Grzegorz SP8GBP
Receive Time:
(Received in latest packet)
Latest Telemetry:
Latest Position4:
51.2306666666667, 22.519
Receive Time:
(Received in latest packet)
Nearby locations:
Lublin , Poland 2.46 miles
Kozubszczyzna , Poland 3.99 miles
Jakubowice Murowane , Poland 5.67 miles
Jastków , Poland 6.23 miles
Latest PHG6:
Power 16 W, Height 161 ft, Gain 5 dB omni
(Calculated range: 22.56 miles)
Packet frequency:
787s (Latest 11 packets)
Latest symbol
Search for SR8NDU at QRZ.COM!

(Link to

Related stations/objects7:
Nearby stations/objects:
Symbol  SR8BBS-12 0.65 miles
Symbol  SR8NLU-5 0.65 miles
Symbol  SR8BBS-5 0.65 miles
Symbol  SR8NLU 0.66 miles
Symbol  SQ8GKT-EL 0.67 miles
Symbol  438.275LU 1.25 miles
Symbol  SP8KAF 1.31 miles
Symbol  SP8NCG-15 1.57 miles
Symbol  SQ8NXM 1.77 miles
Symbol  HF8N-8 2.53 miles
Symbol  WIR-31122 4.49 miles
Symbol  439.050LU 4.49 miles
Symbol  438.825LU 4.49 miles
Symbol  SR8FHL 4.49 miles
Symbol  SR8LHL 4.5 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