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introduction-to-packet-radio [2024/04/21 03:03] – Initial creation n6ctaintroduction-to-packet-radio [2025/11/29 11:27] (current) n6cta
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 ====== Introduction to Packet Radio ====== ====== Introduction to Packet Radio ======
 +
 +----
  
 ===== What is packet radio? ===== ===== What is packet radio? =====
-Packet radio in the context of amateur radio has historically revolved around the use of the AX.25 protocol transmitted via FSK or AFSK at 300 to 9600 baud over FM or SSB. Most commonly, Bell 103 300Bd is used on HF over SSB and Bell 202 1200Bd has been used over VHF and UHF links. Links above 2400Bd require special hardware considerations and generally therefore aren’t as commonly used. Today we have software based modems to encode and decode enabling radically greater performance as well as the introduction of protocols such as [[https://web.archive.org/web/20160303180431/http://eludium.stensat.org/mcguire/projects/FX-25/Presentation_slides_02.pdf|FX.25]] and [[http://tarpn.net/t/il2p/il2p.html|IL2P]] which add a layer of FEC. The most popular use of AX.25 and packet radio today is APRS.+Packet radio in the context of amateur radio has historically revolved around the use of the AX.25 protocol transmitted via FSK or AFSK at 300 to 19200 baud over FM or SSB. Most commonly, Bell 103 300Bd is used on HF over SSB and Bell 202 1200Bd has been used over VHF and UHF links. Links above 2400Bd require special hardware considerations and generally therefore aren’t as commonly used. Today we have software based modems to encode and decode enabling radically greater performance as well as the introduction of protocols such as [[https://web.archive.org/web/20160303180431/http://eludium.stensat.org/mcguire/projects/FX-25/Presentation_slides_02.pdf|FX.25]] and [[http://tarpn.net/t/il2p/il2p.html|IL2P]] which add a layer of FEC. The most popular use of AX.25 and packet radio today is APRS.
  
 ===== What kinds of things can I do with packet radio? ===== ===== What kinds of things can I do with packet radio? =====
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   * **Over RF**   * **Over RF**
     * A computer      * A computer 
-    * Am FM or SSB capable transceiver with an integrated or external USB audio interface+    * An FM or SSB capable transceiver with an integrated or external USB audio interface
     * CAT control     * CAT control
  
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   * **Over IP**   * **Over IP**
     * A computer     * A computer
-    * [[https://wiki.ampr.org/wiki/Main_Page|AMPRnet]] Connectivity +    * [[mesh|Yggdrasil]] connectivity
- +
-Head over to [[getting-connected|Getting Connected]] for next steps on joining the network. +
 ===== Further reading ===== ===== Further reading =====
   * [[https://web.archive.org/web/20240229201707/http://www.choisser.com/packet/|Packet Radio Primer by Larry Kenney, WB9LOZ]]   * [[https://web.archive.org/web/20240229201707/http://www.choisser.com/packet/|Packet Radio Primer by Larry Kenney, WB9LOZ]]
   * [[https://github.com/wb2osz/direwolf-presentation/blob/master/direwolf-presentation-WARA-2-2021.pptx|Packet Radio History and Direwolf PowerPoint Presentation by John Langner, WB2OSZ]]   * [[https://github.com/wb2osz/direwolf-presentation/blob/master/direwolf-presentation-WARA-2-2021.pptx|Packet Radio History and Direwolf PowerPoint Presentation by John Langner, WB2OSZ]]
 +  * [[https://wiki.oarc.uk/packet|Online Amateur Radio Community Wiki - OARC Packet]]
 +  * [[https://archive.org/details/the-amateur-packet-radio-handbook|The Amateur Packet Radio Handbook (1993)]]
 +
 +===== What's Next? =====
 +
 +Head on over to [[packet-station-planning|Packet Station Planning]].
introduction-to-packet-radio.1713668613.txt.gz · Last modified: by n6cta