102 lines
5.2 KiB
Markdown
102 lines
5.2 KiB
Markdown
irmc - Internet Relay Morse Code
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================================
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# What is IRMC?
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IRMC stands for Internet Relay Morse Code. It implements the [CWCom protocol](http://kob.sdf.org/morsekob/docs/cwcom.pdf) as adopted by [MorseKOB](http://kob.sdf.org/morsekob/docs/history.pdf). You can try out the software in a [browser](http://kob.sdf.org/morsekob/morsekob30/index.htm) using Java.
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## Why morse code over IP?
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Why not? A number of different approaches for CW over IP exist. An early implementation has been the CWCom protocol,
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which has been the basis for Morse KOB, a ready-to-use software. Both chat programs have been written for CW exclusively and are compatible. An alternative implementation in C exists as well as a port to the ATMEL AVR Microcontroller.
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Besides a variety of other approaches exist, for example an IRC plugin ([CWirc](http://myspace.voo.be/pcoupard/cwirc/)), a [JavaScript implementation](http://morsecode.me), a [bandwidth-eating UDP implementation](http://hans.liss.pp.se/node/343), a [chat for iOS](http://pignology.net/cwwithme.html) or a modulated CW over IP using Mumble ([iCW](https://sites.google.com/site/icwoip/)).
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# How to build?
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## Install dependency: morse keyer library
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```
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wget https://github.com/8cH9azbsFifZ/morse/archive/v0.1.tar.gz
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tar xzf v0.1.tar.gz
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cd morse-0.1
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libtoolize
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./autogen.sh
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./configure --with-portaudio
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make
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sudo make install
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```
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## Debian (Wheezy)
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Some dependencies have to be installed:
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```
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apt-get install -y alsa-oss oss-compat build-essential autoconf libao-dev libtool
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```
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Afterwards compilation with `make` should work. If something went wrong, you may have
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to adjust your `LD_LIBRARY_PATH`. Alternatively try:
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```
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LD_LIBRARY_PATH=/usr/local/lib ./irmc mtc-kob.dyndns.org 7890 33 123
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```
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## OSX (Yosemite)
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Compilation with make :)
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For the USB serial devices you need a PL2303 driver (i.e. [PL2303_Serial-USB_on_OSX_Lion.pkg](http://changux.co/osx-installer-to-pl2303-serial-usb-on-osx-lio/)).
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## Testing with MorseKOB 3.0 (Java)
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This [software](http://kob.sdf.org/morsekob/morsekob30/MorseKOB.jar) will run on
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Linux, Windows and OSX. With the [RXTX software](http://morsekob.org/morsekob30/help.htm)
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for Java (i.e. [librxtxSerial.jnilib](http://blog.brianhemeryck.me/installing-rxtx-on-mac-os-mountain-lion/) on OSX) it is even possible to connect to external hardware.
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NB: before you transmit make sure you uncheck the "circuit closer".
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# How to use:
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The usage is: `irmc [hostname] [port] [channel] [id] [serialport`
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For example:
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`./irmc mtc-kob.dyndns.org 7890 103 MyID /dev/tty.usbserial´
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## Morse KOB Servers
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* faeroes.sdf.org 7890
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* mtc-kob.dyndns.org 7890
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A current list of servers if provided on the [MorseKOB Website](http://mtc-kob.dyndns.org).
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## Hardware interface options
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A good description on how to build differnt interfaces (telegraph key, sounder or both) is given on the [MorseKOB Website](http://kob.sdf.org/morsekob/interface.htm). Landline telegraphs use "closed circuits" for communications; if you have built one at home, you may also use the [loop interface](http://kob.sdf.org/morsekob/docs/loopinterface.pdf).
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# Changelog
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* v0.2 [zip](https://github.com/8cH9azbsFifZ/irmc/archive/v0.2.zip) - ported to debian wheezy and osx yosemite, DG6FL
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* v0.1 [zip](https://github.com/8cH9azbsFifZ/irmc/archive/v0.1.zip) - original version, VE7FEB
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# References
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## Original post by Fernan Bolando (VE4FEB)
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Copied on 20150103 from http://fernski.blogspot.de/2013/03/internet-relay-morsecode.html
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> I have been using cwcom to practice sending morsecode, unfortunately my main computer at home is running openbsd and it has gotten harder to gain access to a reliable MS Windows machine. So I wrote my own client that works on openbsd.
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> This is written in C and although not tested it should compile under other OS. If any one wants to try it and send me feedback. you can download version 0.01 here http://fernan.bitbucket.org/irmc.tgz
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> Les Kerr of https://home.comcast.net/~morsekob/ has been very patient in answering my questions regarding the cwcom protocol and setting up a test server during debugging.
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>
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> There are few difference between this and the official cwcom client
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> 1. It is a command line tool
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> 2. It does not send the characters of the message to the receivers screen.
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> 3. It does not translate CW for you. You can try fldigi if you just want see the transmission.
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> 4. Tone pitch is currently hard coded to 650Hz
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> 5. It does not have a way to show you who is listening.
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>
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> Bugs:
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> There are a few that I am working on right now, but feel free to send me feedback if you get a chance to try it out.
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>
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> File(s)
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> http://fernan.bitbucket.org/irmc.tgz
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> The following people have helped me a lot to learn the protocols and setting up test servers.
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> Les Kerr - https://home.comcast.net/~morsekob/
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> Bob Denny - http://morse-rss-news.sourceforge.net/
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> John Samin - http://www.mrx.com.au/
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## Resources
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* CWCom, John Samin (VK1EME): http://www.mrx.com.au/d_cwcom.htm
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* Morse KOB, Les Kerr: https://sites.google.com/site/morsekob/ and http://kob.sdf.org/morsekob/
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* Relay server for CW communicator and morse KOB: http://morsecode.dc3.com:7890
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* Sources for the Relay Server: http://sourceforge.net/projects/morse-rss-news/
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* MorseKOB for AT Mega, Fernan Bolando (VE4FEB): http://fernski.blogspot.de/2013/05/sending-morsecode-via-atmega.html
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