Posts Tagged ‘self’

Show Notes #081

Introduction:

  • Loctite… not just for noisy children any more.

Announcements:

  • The Fourth Annual Southeast Linuxfest is scheduled for June 8-10, 2012 in Charlotte, NC.
  • Please sign up for the LHS mailing list.
  • Please join our new Subreddit and contribute news stories, discussion topics, and any other items that may be of interest to our listeners.
  • Scott, N8VSI, has tentatively agreed to be our ambassador at the Ohio Linux Fest in Columbus, Ohio in September, 2012.
  • It looks like LHS will be at the Dayton Hamvention, May 18-20, 2012 in Dayton, OH. If you’d like to help make that happen, please donate!
  • LHS is syndicated by the Kamiak Butte Amateur Radio Association, KB7ARA. The linked repeater sites cover almost all of Washington State, some of Oregon, and a bit of Canada as well. They are IRLP and Echolink connected.
  • Ronny, K4RJJ, will be our ambassador at the Knoxville Hamfest on June 8th, 2012. Ronny calls in to discuss the upcoming Knoxville Hamfest, and his previous experiences as LHS ambassador.

Feedback:

  • David, KE0AZ, writes to ask if LHS will be at Ham-Com, June 8-9, 2012, in Plano, TX.
  • LinuxCanuck writes to defend Kubuntu against Richard’s recent tirades.

Topics:

  • IRSSI Tips and Tricks
    • Irssi is a terminal based IRC client for UNIX systems. It also supports SILC and ICB protocols via plugins. Russ offers some tips on making Irssi a bit friendlier.
    • The functionality and ease of use of Irssi can be extended by installing and using third-party scripts. These scripts are written in Perl and available at scripts.irssi.org.
    • Once you download the script file, which we’ll call “dlfile” in the example below, you can install it and have it automatically run with Irssi by performing the following steps:
      # Create the scripts and autorun directories:
      linux> mkdir -p ~/.irssi/scripts/autorun   
      # Move the downloaded script file to the scripts directory:
      linux> mv  ~/.irssi/scripts
      # Change to the autorun directory:
      linux> cd ~/.irssi/scripts/autorun
      # Create a link to the downloaded script:
      linux> ln -s ../ . 
    • Some interesting scripts Russ is using:
  • Our hosts discuss the new release of Linux Mint Debian Edition (LMDE) with the MATE and Cinnamon desktops.

More Feedback:

  • Stefano, IZ3NVR and KD2BGM, asks for help finding a good Linux contest logging program that supports SO2R (single operator, two radios) and CW keying. We don’t know of any, but perhaps one of our listeners can offer a suggestion.
  • John, KD7AAT, offered a bit of criticism about the political content of episode 79 with Fab.
  • Mike writes to extol the virtues of Linux Mint Debian Edition with the XFCE desktop, and hopes Richard will find it a suitable alternative to Linux Mint or Kubuntu. He also suggests Crunchbang Linux. Richard and Russ respond.

Donations:

  • Don sent a nice donation for the Hamvention fund. Thanks, Don! We also received donations from Bob K., Charles H., Scott P., Craig B., and Harrison K. Thank you, everyone!

Contact Info:

Music:

  • “Gold and Steel” by Isaac Graham from the album Empty Vessels.
  • “Charly” by Higgins from the album Zs.

LHS Show Notes #061

Promo:

Announcements:

  • LHS will be at the Dayton Hamvention, May 20-22, 2011, booth 131 in the North Hall. Russ and Cheryl will be there. Stop and say hello.
  • LHS will also be at the Southeast Linuxfest, June 10-12, 2011, in Spartanburg, SC. Russ will be giving a talk on Saturday, and Russ and Cheryl will be at the LHS booth.

Feedback

  • Dan writes in about a Linux discussion he had at his radio club on March 8, and he mentioned LHS. Dan is also recording his own podcast, “Every Day Linux Use”. Good luck with that, Dan, and let us know where to find the podcast when it’s released.
  • B.B., KC5PIY, writes about an article in the February 2011 issue of Linux Magazine discussing the OpenHatch project. B.B. shares his thoughts about how OpenHatch may apply to the podcast and amateur radio. Russ and Richard respond. Unfortunately, when this was recorded, the OpenHatch website was down. (From the OpenHatch website: “OpenHatch is an open source community aiming to help newcomers find their way into free software projects.”)
  • Rick, K9AO, sent some detailed instructions for building SVXlink, an open source Echolink client, under Linux, and we’re including it in it’s entirety here. As you may recall from episode 56, Russ had problems with compiling the program.Hi Russ,
    I thought I’d send along the method that I have used to successfully build SVXlink under Mandriva 2010.2 and Ubuntu 10.10. I built the source on Ubuntu 10.10 late last year, so don’t have access to that machine at the moment. I built SVXlink from the latest SVN checkout on this Mandriva box, but this method also works fine for the release tarball.

    I don’t know if you generally use SVN projects, but I’m thinking that you likely do if you are as interested in helping to shape the development of actively developed projects.

    I create a directory called SVN in my home directory, and then do the SVN checkouts from there. Using the SVN checkout command below will create a subdirectory in the folder that you run it in, and then you can do the install from there. You likely are already familiar with this.

    Here are the specifics:

    ——————–
    Get the source:
    svn co https://svxlink.svn.sourceforge.net/svnroot/svxlink svxlink
    cd to the below directory:
    Build the source branch in /svxlink/trunk/src
    From there:
    make realclean
    make
    su to root
    make install
    ——————–

    If there are any missing deps, these will show up as the compile progresses. As you already know I am sure, you need the devel packages to match the deps to build from source.

    You will see errors, or what looks like errors as the build progresses after a realclean command. But if all of the needed libs and devels are there, the build process will create the necessary configs and then build the app. If you are concerned that the app might not have built correctly, doing another make will have the terminal scroll through the build process rapidly and then complete. If you get that far, do the root install. Then qtel from the terminal will bring up the client.

    There are a number of branches of the source code for SVXlink in development. I recommend the above main trunk first.

    There haven’t been any changes in the Qtel client for a while, so if all you are after is the client part of SVXlink there is no advantage to using cutting-edge SVN. There has been quite a bit of development going on in the server part, so experimenting with the SVN and joining the SVXlink devel list might be a good idea.

    Hope that helps, and keep up the good work.

    Rick, K9AO

Contact Info:

Music:

  • To be added.

LHS Show Notes #060

Promo:

Topic 1: JT65

  • Richard enjoys the digital modes. Recently, he came across a signal he could not immediately identify, and found it was JT65.
  • JT65 is one of the suite of programs in the WSJT package written by Joe, K1JT, and was originally developed for weak signal Earth-Moon-Earth (EME) contacts.
  • It’s easier to install than WSPR (Weak Signal Propagation Reporter); simply download, extract, and go.
  • Because the software is designed to achieve a weak signal contact, information is sent repeatedly. If everything is working well, a simple contact will take about 7 minutes.
  • Like WSPR, stations transmit on a two-minute interval, so the computer clock must be accurate.
  • One station will “transmit on the ones” meaning he is transmitting on the odd number minutes. Each transmission is usually about 50 seconds. Then, the other station sends on the even minutes.
  • Typical contacts are callsign, signal report, and location.
  • Signals sound a bit like weather fax, usually a bit above the PSK area on 20m.
  • Richard was able to make 10 contacts in 15 minutes with 5 watts into his G5RV at 30 feet, on the 10m band, no less. He then made 5 contacts in 30 minutes on 15m, one of which was to South America.
  • WSJT and WSPR are both developed by Joe, K1JT, a physicist and amateur radio operator.
  • WSJT and WSPR can be found at http://www.physics.princeton.edu/pulsar/K1JT/index.html.
  • One of the best websites Richard found for learning to use JT65 on HF is “The Complete Bozo’s Guide to HF JT65A by Andy, K3UK”. It hasn’t been updated in a while, but is still a good resource.
  • The manual included with the program is very good, too.
  • Richard recommends using the second set of messages provided in the program, rather than the default set, as the default does not include a signal report.
  • Richard has prepared an “Intro to JT65″ video, available at the RF Podcast website.

Topic 2: Codec2

  • Bruce, VE9QRP, back in January, suggested we talk about Codec2.
  • From the Codec2 website:
    “Codec2 is an Open Source and patent-free audio codec, currently in alpha testing. It provides good voice rendition at 2550 bits per second, and we expect that its bandwidth will be reduced with continuing development. Its voice quality and latency are an improvement over Speex, when Speex is run at a similarly low bandwidth rate. The original motivation for its development was to provide a completely open codec to replace AMBE+, MELP, and other proprietary codecs for use in Amateur (“Ham”) Radio communications. However, the codec is potentially useful for commercial two-way radio, telephony, and other applications.”
  • Russ plays some audio samples, and our hosts discuss how this might be used in ham radio applications.
  • The resulting file is in a .wav container and thus can be played by any program that plays .wav files. While the result is adequate for voice, it’s not suitable for music.
  • More links:

Feedback:

  • We received donations from Dan W., Matt M., Andrew H., and Paul G. Thank you!
  • LHS will be at the Dayton Hamvention, in the North Hall, booth 131. We hope to see you there!
  • Jim, N2ENN, linked to us on his blog site. Thanks, Jim.
  • The Panhandle ARES group linked to LHS on their website. Thanks, guys.
  • regexorcist of The Daemon and Penguin Oggcast linked to LHS. Thank you.
  • Gary, KE2YK, has syndicated the LHS RSS feed on his eHamStore.net site. Thanks, Gary.
  • Burt, K1OIK, thought the clip art of the foo dog (episode 55) looked like Russ.
  • B.B., sent a long email, which we’ll discuss in an upcoming episode.
  • Danny asked about the podcast that Gene has about Apple. That’s the Tech Night Owl Live program with Gene Steinberg.
  • Dave, KI6ZHD, just found the LHS podcast website. Dave has written some documentation for various Linux topics and is a recent ham. His distro of choice is CentOS. He has been documenting his adventures at his blog and thought our listeners might be interested. He asked if we talked about TrustedQSL on Linux, and we did in episodes 43 and 46.
  • Leif, KC8RWR, commented about dual-booting a computer with Windows if Linux has already been installed. He suggests using gparted to shrink the Linux partition, creating a Windows partition in the free space, and then installing Windows. Of course, it’s best to just use a spare computer or another hard drive. (We talked about all this in episode 56.)
  • Richard points out that version 1.0 of CQRLog has been released.
  • Jim, N2ENN, just installed straight Debianand offers a few hints:
    • Extra repositories: In the system/administration tab, there’s a package called software sources. Check them all and click close.
    • Flash vs gnash: don’t worry about gnash. Once the nonfree repositories are selected, open the Synaptic package manager and install flashplugin-nonfree, or from a terminal, type “apt-get install flashplugin-nonfree”.
    • Regarding codecs: all the codecs are already installed, or should be. If not, again in Synaptic, tick good, bad and ugly plugin modules, along with the base plugin.
  • Russ received this from a radio club: Steve, N1NXU, wrote that he had a Tripp-Lite power supply that needed repair and he asked them for a schematic. They declined to provide one, so he recommends Astron power supplies, as schematics are included. These are available a most of the ham radio stores.
  • John, KF6EFG, attended Indiana LinuxFest and asked Russ for a copy of his presentation from that event. Look for that information on the LHS website in the near future.

Announcements:

  • Some listeners have requested a calendar of upcoming LHS events. So, if you have a calendar program that uses ICS calendar feeds, go to the LHS site and on the right side, look for the ‘Follow Us’ heading. Click at the third icon that looks like a calendar. Or, to see the information in your browser, click this https://zmx.bcef.info/service/user/[email protected]/LHS-Podcast.html.
  • Again, LHS will be at the Dayton Hamvention on May 20-22. We’ll be giving away a computer, so drop by the booth and say hello. Please donate at the website to help defray the costs. Thanks.

Contact Info:

Music:

  • To be added.

LHS Episode #060: apt-get install make-pr0n-work

Hello, faithful listeners and newcomers alike. A couple of big events are coming up. The first is the Dayton Hamvention, this weekend from May 20th through the 22nd. The other is the Southeast Linux Fest, from June 10th through the 12th. Linux in the Ham Shack will have a presence at both events and we hope to see everyone there. We will be having raffles for “quite good” prizes so you don’t want to miss that either.

In this episode of our show, we catch up on almost all of our (very old) feedback and even manage to discuss a couple of items which may interest ham radio and Linux enthusiasts alike: JT65, a weak-signal digital mode, and codec2, a new audio codec designed for low bandwidth, telephone quality, error correction and to be free of patents or encumbrances of any kind. Enjoy.

LHS Episode #039: Best. Episode. Ever.

Lately it seems like if there were an extra day in the week it still wouldn’t be enough to get everything done. That being said, Episode #037 is here and it’s even released on time. We’d like to especially thank Dan and Gary for leaving us audio comments via our call-in numbers. If you’d like to participate by leaving us audio feedback, the number to call can be found at the top of the left column of this site. We really do like to “hear” from our listeners.

This has also already been announced, but I’d like to promote our merchandise shops once again. If you’d like T-shirts, tote bags and lots of drinkware items with the cool new Linux in the Ham Shack logo on them, take a trip over to http://www.printfection.com/lhs and pick up an item or two. You’ll be helping us out with a small donation and advertising the show to your friends, family and colleagues. If caps or wall clocks are your thing, http://www.cafepress.com/lhspodcast has exactly what you need. They make great gifts, too. And every purchase helps Linux in the Ham Shack out with our hosting expenses.

Hopefully we’ll see a lot of our listeners at the Dayton Hamvention this month, and hopefully we’ll have many more faithful followers by the end of the event. Thanks as always for downloading the show, and make sure to leave us a comment. Don’t be a stranger.

73 de The LHS Guys

LHS Episode #035: Soylent Green is Bad Apples

Last week in the Linux in the HAM Shack chat room, we had a lot of participation from our listeners. It was so great to see everyone there. We hope that in the future, more people will get a chance to check out the live show. Check back here on the web site for the schedule of live recordings.

This episode of Linux in the Ham Shack is jam-packed with content. We have a special guest from around the Interwebs that you will likely know if you listen to other podcasts about Linux. The show did run a bit longer than usual, but there is just so much in it I couldn't begin to tell you everything you're going to hear. I do hope that you'll stick around for the entire episode because there are some goodies near the end that you will not want to miss out on, including how you can win significant cold, hard cash.

Thanks to our special guest, our live participants and to everyone who listens to the show. PLEASE, tell everyone you know about us, and that we're not just for amateur radio enthusiasts. Technofiles, geeks, Linux and FOSS addicts and just about everyone will gain something from the podcast. Oh, and due to a couple of technical problems, the audio quality in this episode is poor in a few places. I did the best I could. Next time it'll be better. Have a great week!

73 de Russ and Richard


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