Raspberry Pi for Amateur Radio VOIP (Echolink) Part 1,2 and 3

This is an amateur radio transceiver wired into a Raspberry Pi and loaded with Echolink software (SVXLINK). One can use this with a 12V battery and connect to the echolink network. See video parts 1,2 and 3.

Software in use is SVXLINK at:
<p>i tried skype, viber, voip discount , mobile voip, i feel like the best one till now is freecallee. its very cheap comparing all other voip with excellent voice clarity.</p><p>https://www.freecallee.com/</p><p>https://www.facebook.com/freecallee</p>
Great project thanks. Can you tell me more about the sound interface card?
<p>You're doing COS, PTT, and DTMF decoding without the IRLP board. Excellent! Nicely done! I was wondering why PiRLP felt they needed the extra card these days :-)</p>
<p>Ahh happy to see some amateurs radio here. Very good project you got there. Nice work!</p><p>I'm working on a repeater in my house, just for fun.</p><p>You can see some pictures here : <a href="http://va2rme.com/photos.php" rel="nofollow">http://va2rme.com/photos.php</a></p><p>(Explanations in french, sorry)</p><p>Actually using multiple Arduinos to make the COM port communication interface between electronics and computer. I should spare some money to try this Rasberry Pie. I've linked the repeater on Echolink with a simple USB/Serial Port converter and an arduino. Working fine for now. Even still in experimentation. But I've to admit, I like your portable Echolink interface. Maybe I'll get on it for fun.</p><p>Amateur radio starting to be abandonned arround me. There is some clubs who own a couple of repeaters but they do nothing. They are not experiencing anything. When I've tried to help them and make some activity I got an &quot;It's ok like that. We don't need to do anything. Our club and our repeater won't need to be modified...&quot;. So amateur radio starting to die here. I'm trying to have some fun on my side, but radios, alone, are not very enjoyable =P</p>
<p>I have been building these for the past year. Mostly for IRLP but these are the first Echolink Raspberry Pi I build. I will feature them in Puerto Rico next weekend</p>
<p>Is there an easy way to make synthesized voice with a Raspberry Pi ?</p><p>thinking about changing the PC, for my repeater, for a simple Raspberry Pi.</p>
<p>Yes. there are 2 ways that I'm familiar with. One is using a package called festival. The other is called espeak.</p><p>install the package festival (apt-get install festival). Connect a speaker to the Pi, and use this command: </p><p>echo &quot;testing my raspberry pi with voice | festival --tts &gt;/dev/null 2&gt;&amp;1</p><p>------</p><p>With espeak, install with apt-get install espeak, and use this command:</p><p>espeak -ven-us+f2 -k3 -s200 &quot;testing my raspberry pi with voice&quot; &gt; /dev/null 2&gt;&amp;1</p><p>I use alsa-utils to control audio but thats another subject</p>
<p>Forgot a close quote. It is:</p><p>echo &quot;testing my raspberry pi with voice&quot; | festival --tts &gt;/dev/null 2&gt;&amp;1</p>
<p>Also, you can use flite as well, which has smaller space / voice requirements. (234k of space) (Sounds a lot more mechanical, but it works.) </p><p>flite in.txt out.wav</p>
<p>Thank you for the advice. Probably be my next purchase on eBay. It's been a while since I wanted to start learning linux. That will be a good start.</p>
The Raspbery Pi is a great platform to learn Linux. I am more of a &quot;command line&quot; junkie but it has a decent GUI
<p>If I'm going to learn linux, I'll go for the right way =P I'll try to put aside my &quot;Windows minded&quot; and get in these command line.</p>
<p>I have run into the same issue with local clubs and APRS mic encoder. When I wanted to put a TNC at repeater site to catch (and mute) packets, they said no, the repeater is a service. When I put the TNC at the digipeater site listening to the input of the repeater (and not muting b/c its not on site) they complained about the .5 sec burst. No innovation in ham radio lately.</p>
<p>Yeah, this is unfortunate. I don't know what was the trigger element of this &quot;mind changing&quot;. Between 1990 and 2000, here, this was the best years of Amateur radio. Active and innovationg. Unfortunately, for me, I was too yound to get on this in these years. Now it's start to degenerating. Local repeater are poor, less reliable, poorly maintained and currently used on 90% only for the phone path.</p>
<p>i like this and have been talking to kp4tr about him building one of these for me he built one for a ham radio friend of mine and these are neat allows ham radio operators to talk all over the world.</p>
<p>Excellent project! Wonder if you have more info on the additional commands you have programmed. Thanks,</p><p>Peter VK4QC</p>
Hi guys, <br>I'm having umpteen issues with installing svxlink on my pi :-( I've tried it over and over for nerely 2 days straight now, if anyone could send me a image of their working sd card that that could edit to work with my callsign etc, I would be most grateful! My email is hypamatdev@gmail.com <br><br>Thanks, <br>Matt, <br>2E0MJT
I like pronouncing it the way I feel is best for me...
Cool project. FYI, I believe it is pronounced Raspberry &quot;Pie&quot; as in the Greek letter Pi.
<p>I like using &quot;pee eye&quot;, otherwise my non-techie friends think I'm talking about desserts</p>
<p>To additionally confuse things, my Greek teacher pronounced the Greek letter 'Pi' as &quot;pee&quot; and claimed this was the proper way to do it. So I suppose you <em>could</em> pronounce it Raspberry Pee. But I don't think the creators intended that usage. We should make a version called the &quot;CowPi.&quot; Then either way we can snicker. :0)</p>
<p>Fine. So now you have them thinking it's a &quot;Private Investigator&quot;. Really, I think most non-techies have heard of pi times r to the second. &quot;P&quot; &quot;I&quot; really sounds dorky.</p><p>But really nice work on the project, just the same.</p>
Have done a few amateur radio projects.. Morse Code Keyer for Arduino and Amateur Radio http://www.instructables.com/id/ERUNRD7HKIT8Q0C/?lang=en 24Mhz -1800Mhz SDR Radio receiver for $15 (Digital,Sideband, AM, FM etc http://www.instructables.com/id/EAT08KGHKJTE0IY/?lang=en 0-40Mhz, Sine wave generator for $25. http://www.instructables.com/id/ET06MDVHKIT8Q4F/?lang=en
A beacon? Hmm i can easily do that with this node on 70cm. Even reconfigure it for fox hunting! <br>I have used dual band radios before . Maybe my next node will be 2m 70cm!
<p>Great project! I'm using my RPI as a stand alone 2 meter beacon, using the program PiFM. It puts out about 10Dbm. If the local clubs are not doing it for you, try getting involved with WSPR. There's even a WSPR app for the RPI! See how far you can communicate with 10 milliwatts.</p>
<p>73 de BJ, KM4RB, also in the Tampa area. Very nice!!! I'll echo the comment about enjoying seeing more ham related stuff out here. I haven't done anything with the Pi yet (I'm more of an Arduino guy) but you just got me very interested in it... hope to hear you on the air sometime!</p>
<p>Ahhhh voices from the ether.</p><p>Is it listing to the principalities and dominions of Satan, who is a spirit of the air?</p><p>Or my lack of medication?</p>

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