Packet - Revision history

Admin: /* Links */

2016-08-17T03:41:46Z

Links

← Older revision		Revision as of 03:41, 17 August 2016
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	TNC modem for Packet via Raspberry Pi: http://www.tnc-x.com/TNCPi.htm		TNC modem for Packet via Raspberry Pi: http://www.tnc-x.com/TNCPi.htm

			Nice writeup of using a Baofeng UV-3R for packet. TLDR: Baofeng had some issues. Icom worked better.

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Admin at 03:29, 17 August 2016

2016-08-17T03:29:34Z

← Older revision		Revision as of 03:29, 17 August 2016
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	Basically, Packet is a way of using radios to connect to a de-centralized, alternative "internet" for communications. There are message board, chat, and email functionalities provided by packet routers, and packet modems are what enable you to talk to those routers. By linking in with repeater systems, you can still connect and communicate with systems that are father away.		Basically, Packet is a way of using radios to connect to a de-centralized, alternative "internet" for communications. There are message board, chat, and email functionalities provided by packet routers, and packet modems are what enable you to talk to those routers. By linking in with repeater systems, you can still connect and communicate with systems that are father away.

			=AX25 details=

			Info on using Baofeng UV5R to do packet or AX25:

			https://www.reddit.com/r/amateurradio/comments/1a5c6f/baofeng_uv5r_and_psk31_interfacing_with_laptop/

			To make a sound modem to do AX25 with a handheld radio, you need two paths for audio:
			* output of soundcard goes to radio mic
			* output/speaker of radio goes to soundcard mic
			* audio transformers needed to match impedance between these
			* PTT - if something is plugged into the combination headphone/mic jack, PTT will engage the button if the mic is on
			* You can add an optoisolator - connected to the radio mic connection - and a serial port interface
			* USB serial adapter that has a real RTS or CTS signal

			How many parts? two or three parts, depending on how you do transformers. Bunch of audio cables, proper USB-serial adapter, serial connector to fit adapter (so you have something to solder on to), but an FTDI cable could have pinouts.

			Most popular one is Singal Link USB - making your own is cheap and fun.

			Can use VHF/UHF for APRS and Packet BBS on 2 meters. PSK will only be on SSB on HF. Would require upverters. Circuit could interface with other HF-capable radios.

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Admin at 19:03, 13 August 2016

2016-08-13T19:03:51Z

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	Packet, or AX.25		Packet, or AX.25

			=The Rundown=

			Basically, Packet is a way of using radios to connect to a de-centralized, alternative "internet" for communications. There are message board, chat, and email functionalities provided by packet routers, and packet modems are what enable you to talk to those routers. By linking in with repeater systems, you can still connect and communicate with systems that are father away.

			=Links=

	Introduction: http://www.m0spn.co.uk/2016/01/10/introduction-to-packet-ax-25/		Introduction: http://www.m0spn.co.uk/2016/01/10/introduction-to-packet-ax-25/

	TNC modem for Packet via Raspberry Pi: http://www.tnc-x.com/TNCPi.htm		TNC modem for Packet via Raspberry Pi: http://www.tnc-x.com/TNCPi.htm

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Admin: Created page with "Packet, or AX.25 Introduction: http://www.m0spn.co.uk/2016/01/10/introduction-to-packet-ax-25/ TNC modem for Packet via Raspberry Pi: http://www.tnc-x.com/TNCPi.htm =Flags=..."

2016-08-13T18:33:15Z

Created page with "Packet, or AX.25 Introduction: http://www.m0spn.co.uk/2016/01/10/introduction-to-packet-ax-25/ TNC modem for Packet via Raspberry Pi: http://www.tnc-x.com/TNCPi.htm =Flags=..."

New page

Packet, or AX.25

Introduction: http://www.m0spn.co.uk/2016/01/10/introduction-to-packet-ax-25/

TNC modem for Packet via Raspberry Pi: http://www.tnc-x.com/TNCPi.htm
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