Category: Show Notes

Show Notes #097

Posted on by Russ Woodman

Introduction:

  • Welcome to another episode of Linux in the Hamshackedness, where the Chocolate Shake Fairy visits Richard.

Announcements:

  • LHS now accepts micropayment donations via Flattr. It's been successful for the Linux Outlaws guys, so we're giving it a try here.
  • We now have a countdown timer on the Web site that shows the time remaining until the next live recording. Of course, now that we're recording on Wednesdays, we've decided to move back to Tuesdays. That will happen in January. Keep an eye on the web site for the dates. (Tuesday, January 8, 2013, as of this moment.)
  • We also have a Google Community for Linux in the Ham Shack. It's a great method for leaving feedback, show suggestions, questions, hate mail or anything else.
  • The Dayton Hamvention 2013 will be coming up soon, so we've added the donation thermometer to the website. Please make a donation and help send LHS to Dayton again in 2013.
  • Sign up for the LHS mailing list, too.
  • Gnorman has a bio on the LHS About Us page.

Topics:

  • Raspberry Pi in the Ham Shack
    • Russ has been working on getting an Echolink node running on his Raspberry Pi.
    • He's chosen Raspbian as the operating system, which is based on Debian Wheezy.
    • Installation consists of downloading the iso, using dd to copy it to a secure digital card (SD flash memory card), booting the Raspberry Pi with the SD card, and following the prompts to install.
    • VK2MEV has posted instructions for configuring a Raspberry Pi as an Echolink node.
    • So far, Russ has Raspbian installed, as well as svxlink and qtel, but has not yet connected it to the usb sound card or attached it to his Rascal GLX interface to control the radio. Another option would be to use the Pi's GPIO bus to control the radio instead of a digital mode interface.
    • VK2MEV also has a page describing WSPR on a Raspberry Pi. (Another page is VK2MEV's blog on WSPRnet.)
    • Ted, WA0EIR, says he thinks some folks have his PSK31LX program running on a Raspberry Pi.
    • Russ mentions that there is a Slackware build for the Raspberry Pi.

Feedback:

  • Cory, KD0QEA, asks if there are any "hangout" radio frequencies for LHS hosts and listeners. Well, Cory, there are none due to lack of time for the hosts to get on the radio. However, perhaps our listeners would like to establish an LHS net. Email your suggestions for bands, frequencies and times and we'll announce them on the podcast. When Russ gets his Echolink node/Raspberry Pi running, he'll be there more often. The node number will be 54711 (LHS11 on the telephone pad).
  • Doug, N6LMX, left a voice mail about the Raspberry Pi. He has one and wonders which ham radio apps can be used on the Pi. He's also using Raspbian as the operating system. Doug will be attempting to create a media center with his, as well as ham radio applications. Russ suggests running the Pi headless and using ssh from a smartphone or tablet to access it. That would avoid having to carry a monitor and keyboard around with the Pi. It's likely that most of the popular Linux ham applications, such as fldigi, would work fine with the Pi, though you may need to compile them yourself. As for the media server idea, the Pi may not be quite powerful enough. Raspbmc is based on XBMC, and might be the best option. Ted, WA0EIR, has several Linux ham radio applications that should work quite well on the Pi. Richard also wonders if there are folks running APRS on the Pi, and there's at least one. Thanks for the voice mail, Doug. We appreciate it.
  • Dave, M0DCM, has been catching up on the show, and responds to episodes 95 and 96. He uses 75-ohm coax as a feedline with a 1:1 balun to horizontal and vertical dipoles, and is able to bypass his tuner on 21 and 24MHz. He goes on to describe his Linux and radio activities. Thanks, Dave.
  • Thanks to everyone who sent happy birthday messages to Russ.
  • Gorkon, aka Joel, says there may have been a problem with the ogg version of episode 96. Russ will take care of it if he finds the problem.
  • Mike, from Sugarland, TX, has been trying to use N3FJP's Amateur Contact Log (ACLog) program for logging, presumably under WINE, but it crashes and he wonders if anyone else has had any experience with this. If any of our listeners have tried ACLog under Linux, let us know, or respond on the Google+ LHS community. Russ suggests forcing WINE into 16-bit compatibility mode.

Contact Info:

  • Contact Richard at kb5jbv@gmail.com, Russ at k5tux@lhspodcast.info, or both at the same time at info@lhspodcast.info.
  • Listen to the live stream every other Tuesday at 8:00pm Central time. Check the LHS web site for dates.
  • Leave us a voice mail at 1-909-LHS-SHOW (1-909-547-7469), or record an introduction to the podcast.
  • Sign up for the LHS mailing list.
  • Sign up for the MAGNetcon mailing list.
  • LHS merchandise is available at the Merch link on Web site. Check out the Badgerwear or buy one of the other LHS-branded items at PrintFection.com/lhs or Cafe Press. Thanks!
  • Thanks to Dave from Gamma Leonis for the theme music.

Music:

  • None this episode.

Show Notes #096

Posted on by Russ Woodman

Introduction:

  • Welcome to another edition of the Super Happy Crappy Hour!

Announcements:

  • The Black Sparrow Media mobile app is again hosted thanks to listener donations. Visit the BSM website to download the app and enjoy all of the BSM affiliated shows.
  • CafeNinja and the Tin Foil Hat Show have joined the Black Sparrow Media network.
  • If you'd like to participate in the chat room, point your IRC client at the irc.freenode.net server, and join the #lhspodcast channel.
  • You can listen to the live show by pointing your media player (VLC, Totem, or whatever) to https://stream.blacksparrow.net:8008/lhslive.
  • Our live recording night will be moving to Wednesday evenings (CST) beginning with Episode 97, scheduled for December 12th, 2012.
  • Welcome Gnorman to the LHS staff.

Topics:

  • TLF Contest Logger.
    • We've mentioned TLF in episodes 12, 65 and 70.
    • TLF is a console-mode general purpose CW and voice keyer, logging and contest program for Linux.
    • Our hosts compare this to YFKTest.
    • If you have used TLF, send us your experience with the program.
  • Our hosts then embark on several digressions about Gnorman, Lua, and other podcasters.

Feedback:

  • Torsten, DL1THM, sends an email describing his use of a Raspberry Pi as an APRS digi using aprx software and as a D-Star repeater using a DV-RPTR board. Thanks, Torsten.
  • Greg responded to episode 94 about uses for the Raspberry Pi, including a media PC with Raspbmc and perhaps as a weather station. Thanks, Greg.
  • Russ and Richard also talk about D-Star stuff, and D-RATS. (D-RATS has been mentioned in LHS episodes 17, 32, 56, 71 and 90.)
  • Comment from the Web site from Leif, KC8RWR, in response to episode 91 where Russ rants about the lack of speakers in the head units of mobile radios. Thanks, Leif.
  • Fred, DH5FS, sent a suggestion to consider TLF as a Linux contest logger. Thanks, Fred. Your email inspired tonight's topic.
  • Bill, KJ4KNI, on Facebook expressed his appreciation for help getting Linux Mint 13 with the MATE desktop running on his main computer. He also provides several reasons a ham might wish to use RG6 (75 ohm coax) in radio applications. Thanks, Bill.

Contact Info:

  • Contact Richard at kb5jbv@gmail.com, Russ at k5tux@lhspodcast.info, or both at the same time at info@lhspodcast.info.
  • Listen to the live stream every other Tuesday at 8:00pm Central time. Check the LHS web site for dates.
  • Leave us a voice mail at 1-909-LHS-SHOW (1-909-547-7469), or record an introduction to the podcast.
  • Sign up for the LHS mailing list.
  • Sign up for the MAGNetcon mailing list.
  • LHS merchandise is available at the Merch link on Web site. Check out the Badgerwear or buy one of the other LHS-branded items at PrintFection.com/lhs or Cafe Press. Thanks!
  • Thanks to Dave from Gamma Leonis for the theme music.

Music:

  • "Crooked Smile Girl" by Heather Pierson, from her album Make It Mine.
  • "Agnostic" by Daniel Bautista from the album 15, courtesy of Jamendo.

Show Notes #095

Posted on by Russ Woodman

Introduction:

  • Welcome to episode 95 of Linux in the Ham Shack. Episode 100 looms on the horizon, and we'd like to do something a little special. Call in to the LHS voice mail line at +1-909-LHS-SHOW (1-909-547-7469), or send an email, and share your thoughts about the show.
  • LHS recommends this LOL Cat image.

Announcements:

  • Kevin O'Brien, Publicity Director of the Ohio LinuxFest, is looking for someone to step up and take on the role of Volunteer Coordinator. If anyone is interested please reply to news@ohiolinux.org.
  • We now digress into a ramble about censorship.
  • On page 45 of the December 2012 issue of QST has an article on vertical vs. horizontal antennas, a topic we discussed in episode 91. In the same issue, on page 52, there is also an article about the NorthWest Digital Radio UDR56K, a topic we discussed in episode 90. Are we seeing a pattern here?
  • Also in that issue is a description of several FCC Proposed Rule Changes, and our hosts discuss each of them:
    • Reduction of license expiration grace period from 2 years to 6 months.
    • Reduction of vanity call waiting period from 2 years to 6 months.
    • Reduction of the number of Volunteer Examiners at test sessions from 3 to 2.
    • Possible allowance of "remote testing" facilities using video and audio over a network that allows for proper administration of tests.
    • Allow single-slot TDMA transmissions.
  • The 2012 Fort Wayne Hamfest is this weekend, November 17-18, in Fort Wayne, Indiana. This is also the ARRL Convention for Indiana. This launches Richard into reminiscing about the presentation of The Last Voice from Kuwait.

Topics:

  • Symbolic (or soft) Links vs. Hard Links
    • Russ and Richard offer a discussion of the difference between soft, or symbolic, links and hard links in Linux.
    • A symbolic link is a pointer to another file name. Symbolic links can be created with the ln -s command: 
      ln -s [original file] [link name]
    • Symbolic links can point to files on other volumes or file systems.
    • Hard links, on the other hand, are pointers to the data of another file, just like a directory entry is a pointer to the first block of data for the file. Hard links are also created with the ln command, but without the -s switch.
    • Hard links can only be used on the same file system.
    • A symbolic link is equivalent to a Windows shortcut, a pointer to the name of another file. A hard link is a reference to the data (first inode) of another file, and thus must be created on the same file system.
    • When the original file with associated hard links is deleted, the data remains until all of the hard links are also deleted. Deleting the original file with associated soft links will delete the file and the data, but the soft links will remain, now orphaned.
    • More information about links is available here.

Feedback:

  • Listener Dave left a comment on the web site expressing his appreciation for the show, and also became a subscriber. Thanks, Dave!
  • Jeremy, KD5HQN, also commented on the web site, claiming he's actually learning something from the shows! He also corrected Richard about the proper location of Orthanc. Thanks, Jeremy.
  • Bill, KJ4KNI, asked, via Richard's Facebook page, for suggestions about the best Linux distribution for a beginner. (Linux Mint 13 is a good choice.) He also wonders why a ham might use 75-ohm RG6 coax as an antenna feedline. Our hosts discuss the possibilities.

Contact Info:

  • Contact Richard at kb5jbv@gmail.com, Russ at k5tux@lhspodcast.info, or both at the same time at info@lhspodcast.info.
  • Listen to the live stream every other Tuesday at 8:00pm Central time. Check the LHS web site for dates.
  • Leave us a voice mail at 1-909-LHS-SHOW (1-909-547-7469), or record an introduction to the podcast.
  • Sign up for the LHS mailing list.
  • Sign up for the MAGNetcon mailing list.
  • LHS merchandise is available at the Merch link on Web site. Check out the Badgerwear or buy one of the other LHS-branded items at PrintFection.com/lhs or Cafe Press. Thanks!
  • Thanks to Dave from Gamma Leonis for the theme music.

Music:

  • "Easier As Us" by Michael McEachern, courtesy of Jamendo.
  • "Wicked" by Fresh Body Shop, from their album Bring Me Down, courtesy of Jamendo.

Show Notes #094

Posted on by Russ Woodman

Introduction:

  • No music this episode.
  • It's the night before Halloween and we're off to another spooky episode of LHS with our hosts starting with a ramble about horror movies. It's a trick AND a treat!

Announcements:

  • Please consider donating to the podcast or subscribing for #20/year. Also, the free Black Sparrow Media app is at risk of disappearing unless our listeners are willing to provide $15/month to keep the download site alive. Please contact us if you can help.

Topics:

  • Creating a desktop wallpaper slideshow in GNOME:

    It's actually a built-in feature of GNOME. Briefly, here are the steps:

    • As root, create a new directory in /usr/share/backgrounds (any name you want).
    • In that directory, place your desired background images (or links to them).
    • There's already a directory in /usr/share/backgrounds called cosmos which you can use as a guide.
    • Copy background-1.xml from the cosmos directory into your new directory and edit it to specify your images.

    More information can be found in this askubuntu thread. Be sure to read through all the comments.

  • Richard points us to one of many articles about ham radio operators helping out during and after Hurricane Sandy. Our sympathies to the victims of hurricane.
  • More about EchoLink and Linux: Richard found the CQiNet project, which includes two applications, Echolinux (an EchoLink client for Linux) and The Bridge, an iLink/EchoLink compatable conference bridge. Of course, there is still the svxlink package, which includes the Qtel Echolink client.
  • C'mon, people, where are my Raspberry Pi suggestions? Russ is still looking for good uses for his Raspberry Pis. Send your suggestions!
  • Google Webfonts are open source fonts that can be embedded in Joomla, WordPress and others, embedded in CSS, or with Javascript. Visit Russ' blog page for an example of Google Webfonts in action.

Feedback:

  • David, KE0AZ, sent an email about our discussion of antennas in Episode #091. He's opting for a used 4BTV vertical.
  • Tim, KI6BGE, in response to Richard's computer power supply repair in Episode #092, shares his success story involving a printer repair he attempted.
  • Scott, N8VSI, sent this audio report on his experience as the LHS ambassador at the Ohio Linux Fest. (We talked to Scott in Episode 93.)
  • Harrison, VE2HKW, made a donation to the Black Sparrow Media app server fund. Thanks, Harrison!

Contact Info:

  • Contact Richard at kb5jbv@gmail.com, Russ at k5tux@lhspodcast.info, or both at the same time at info@lhspodcast.info.
  • Listen to the live stream every other Tuesday at 8:00pm Central time. Check the LHS web site for dates.
  • Leave us a voice mail at 1-909-LHS-SHOW (1-909-547-7469), or record an introduction to the podcast.
  • Sign up for the LHS mailing list.
  • Sign up for the MAGNetcon mailing list.
  • LHS merchandise is available at the Merch link on Web site. Check out the Badgerwear or buy one of the other LHS-branded items at PrintFection.com/lhs or Cafe Press. Thanks!
  • Thanks to Dave from Gamma Leonis for the theme music.

Show Notes #093

Posted on by Russ Woodman

Introduction:

  • Richard is looking forward to winter in Texas... all three days of it.

Announcements:

  • Subscribers to LHS now have access to the Etherpad, or via the Etherpad link in the Content area of the LHS website.
  • Black Sparrow Media now has a Twitter feed at BSM_Network.
  • Richard rants: Ubuntu has added a nag screen to the download page requesting a donation.
  • Linux Distributions for Ham Radio:
  • Jeff Hodsdon published a list of influential ham radio operators, and neither Richard nor Russ are on that list! For shame!

Topics:

Feedback:

Contact Info:

  • Contact Richard at kb5jbv@gmail.com, Russ at k5tux@lhspodcast.info, or both at the same time at info@lhspodcast.info.
  • Listen to the live stream every other Tuesday at 8:00pm Central time. Check the LHS web site for dates.
  • Leave us a voice mail at 1-909-LHS-SHOW (1-909-547-7469), or record an introduction to the podcast.
  • Sign up for the LHS mailing list.
  • Sign up for the MAGNetcon mailing list.
  • LHS merchandise is available at the Merch link on Web site. Check out the Badgerwear or buy one of the other LHS-branded items at PrintFection.com/lhs or Cafe Press. Thanks!
  • Thanks to Dave from Gamma Leonis for the theme music.

Music: