Automatic Packet Reporting System (APRS)
From Signal Identification Wiki
 | |
|---|---|
| Frequencies | 144.39 MHz,145.57 MHz,144.575 MHz,144.64 MHz,144.66 MHz,144.93 MHz,145.825 MHz,432.5 MHz,144.8 MHz,145.175 MHz |
| Frequency Range | 144.39 MHz - 432.5 MHz |
| Mode | NFM |
| Modulation | AFSK |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 12.5 kHz |
| 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
- 144.640 MHzMegaHertz (MHz) 10^6 Hz – China [1]
- 144.660 MHzMegaHertz (MHz) 10^6 Hz – Japan
- 144.800 MHzMegaHertz (MHz) 10^6 Hz – Europe, South Africa, 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) [2]
- 432.500 MHzMegaHertz (MHz) 10^6 Hz - IARU R1 [3]
Decoding Software[edit]
- See the Software page at dxzone
- Qtmm AFSK1200 Decoder
- multimon-ng
- Direwolf APRS TNC
Decoding Tutorials[edit]
Video Examples[edit]
- Decoding APRS traffic with qtmm soundcard modem
- GQRX + RTL-SDR decoding AFSK1200 from a local repeater
Additional Images[edit]
References[edit]
- ↑ IARU Region 3 Interim Band Plan [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 [2]
- ↑ IARU VHFVery High Frequency (30-300 MHz) Handbook 2019
