Automatic Packet Reporting System (APRS)

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Automatic Packet Reporting System (APRSAutomatic Packet Reporting System, an amateur radio-based system for real time tactical digital communications of information of immediate value in the local area)
APRS.jpg
Frequencies 144.390 MHzMegaHertz (MHz) 10^6 Hz144,390,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
144,390 kHzKiloHertz (kHz) 10^3 Hz
,145.570 MHzMegaHertz (MHz) 10^6 Hz145,570,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
145,570 kHzKiloHertz (kHz) 10^3 Hz
144,390 kHzKiloHertz (kHz) 10^3 Hz
144.39 MHzMegaHertz (MHz) 10^6 Hz
145,570 kHzKiloHertz (kHz) 10^3 Hz
145.57 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 144.39 MHzMegaHertz (MHz) 10^6 Hz144,390,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
144,390 kHzKiloHertz (kHz) 10^3 Hz
- 145.57 MHzMegaHertz (MHz) 10^6 Hz145,570,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
145,570 kHzKiloHertz (kHz) 10^3 Hz
Mode NFMNarrowband Frequency Modulation
Modulation AFSKAudio Frequency-Shift Keying
ACFAutoCorrelation Function
Bandwidth 10000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).10 kHzKiloHertz (kHz) 10^3 Hz
0.01 MHzMegaHertz (MHz) 10^6 Hz
10 kHzKiloHertz (kHz) 10^3 Hz
0.01 MHzMegaHertz (MHz) 10^6 Hz
10 kHzKiloHertz (kHz) 10^3 Hz
0.01 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description Packet system for real time data communications. Used by hams for location reporting, weather stations etc.
I/Q Raw Recording Download file
Audio Sample

Packet system for real time data communications. Used by hams for location reporting, weather stations etc. APRSAutomatic Packet Reporting System, an amateur radio-based system for real time tactical digital communications of information of immediate value in the local area is transported over the AX.25 protocol using 1200 bit/sBits per second (bps) Bell 202 AFSKAudio Frequency-Shift Keying on frequencies located within the 2 meter amateur band.


Frequencies[edit]

  • 144.390 MHzMegaHertz (MHz) 10^6 Hz – Colombia, Chile, Indonesia, Malaysia, North America, Thailand
  • 144.575 MHzMegaHertz (MHz) 10^6 Hz – New Zealand
  • 144.660 MHzMegaHertz (MHz) 10^6 Hz – Japan
  • 144.800 MHzMegaHertz (MHz) 10^6 Hz – South Africa, Europe, Russia
  • 144.930 MHzMegaHertz (MHz) 10^6 Hz – Argentina, Uruguay
  • 145.175 MHzMegaHertz (MHz) 10^6 Hz – Australia
  • 145.570 MHzMegaHertz (MHz) 10^6 Hz – Brazil
  • 145.825 MHzMegaHertz (MHz) 10^6 Hz - ISSInformation Sending Station in an ARQ link (The station sending information to the recipient). Usually the signal that's longer in duration than the short RQ (Repeat Request) bursts from the IRS. (International Space Station) [1]

    Decoding Software[edit]

  • See the Software page at dxzone

Decoding Tutorials[edit]

Video Examples[edit]

Additional Images[edit]

References[edit]

  1. AMSAT-UK: How to work the ISSInformation Sending Station in an ARQ link (The station sending information to the recipient). Usually the signal that's longer in duration than the short RQ (Repeat Request) bursts from the IRS. using APRSAutomatic Packet Reporting System, an amateur radio-based system for real time tactical digital communications of information of immediate value in the local area Packet Radio [1]

Additional Links[edit]