{"id":590,"date":"2023-02-12T08:41:13","date_gmt":"2023-02-12T06:41:13","guid":{"rendered":"https:\/\/www.galanto.com\/?p=590"},"modified":"2026-01-30T09:44:05","modified_gmt":"2026-01-30T07:44:05","slug":"aprs","status":"publish","type":"post","link":"https:\/\/www.galanto.com\/en\/aprs\/","title":{"rendered":"APRS"},"content":{"rendered":"

\"\"<\/p>\n

What is APRS?<\/strong><\/p>\n

APRS stands for Automatic Position Reporting System.<\/p>\n

APRS arose with attempts to use PACKET-RADIO for civilian real-time purposes. PACKET-RADIO is not a good solution for networks in which information is updated for a short time and where it is more important not to have 100% reception, but to reach the maximum amount of information in the minimum time – meteorological and telemetry data, rescue operations, etc.<\/p>\n

It usually works in conjunction with GPS.<\/p>\n

Frequencies for APRS<\/strong><\/p>\n

The main radio communication channel is 144.800Mhz – Europe and 144.390Mhz – USA.<\/p>\n

VHF:<\/strong><\/p>\n

Europe (Bulgaria), Russia: 144.800 MHz 1200bps AFSK – voice announcement = 136.5Hz, voice announcement in Norway = 123 Hz,<\/p>\n

North America: 144.390 MHz – voice announcement = 100 Hz.<\/p>\n

Argentina: 144.930 MHz<\/p>\n

Australia: 145.175 MHz – voice announcement = 91.5 Hz and announced 123.0 Hz, in certain areas 439.100 MHz 1200 baud.<\/p>\n

Japan: 144.640 MHz (Kyushu area: 144.660 MHz)<\/p>\n

New Zealand: 144.575 MHz – in some areas use of 432.575 MHz 1200 baud<\/p>\n

UHF:<\/strong><\/p>\n

France: 439.700 MHz 1200 baud<\/p>\n

Netherlands: 430.5125 MHz 1200 baud<\/p>\n

Proposed for USA: 445.925 MHz (by WB4APR)<\/p>\n

HF:<\/strong><\/p>\n

14.103 MHz LSB 300bps \u2013 APRS Gateway & DIGI & Mobile<\/p>\n

More information about these and other digital regimes can be found for example at: http:\/\/www.arrl.org\/FandES\/field\/regulations\/techchar\/<\/a><\/p>","protected":false},"excerpt":{"rendered":"

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