LHS Episode #029: Evil Empires

deathstarIt occurs to me that having an episode discussing evil empires during a celebration- and holiday-filled time of year might be a bit ironic but that's just how things turned out.

Thank you to everyone who has so generously donated to the podcast so that we might have a presence at the upcoming Dayton Hamvention in May, 2010. It was an idea spawned at Ohio Linux Fest in September, 2009 and we've come a long way since then. Every contribution helps and we hope you'll continue to support Linux in the HAM Shack in the future. We also hope to provide timely and essential information to amateur radio enthusiasts and computer users for a long time to come.

From our world to yours, have a Merry Christmas, Happy Hannukah, Joyous Saturnalia, or just a good ol' time--whatever your "thing" might be. We hope you enjoy our latest installment of the podcast, and please: Keep spreading the word. Every month our audience grows, and we predict world takeover by 2014. Well, maybe not, but we are talking about evil empires after all...

73 de Russ, K5TUX

Xastir and Linux Mint

Installing Xastir in Mint

Ben, VK5JFK, left a comment on my review of Linux Mint at the Linux in the Ham Shack web site, asking if I had installed Xastir under Mint.  I had not, but since Richard talked about Xastir in Episode 23, and Linux Mint is the "official" distribution for Linux in the Ham Shack, I thought a brief how-to article might be useful to our listeners.

In fact, installing Xastir in Linux Mint is fairly easy.  Here's a step by step procedure:

  • Launch the Synaptic Package Manager
  • Select the Amateur Radio (Universe) repository
  • Click on Xastir in the list - version 1.9.4-3 was available as I did this
  • Click on Apply - a bunch of dependencies were selected, and after approving that list, off it went.

A few minutes later (over a DSL connection) the installation was complete.

The first (and only) problem I encountered was that the installer did not create an entry in the Mint menu.  To remedy this, I clicked Menu, Preferences, Main Menu.  This utility allowed me to add a new menu category I called Amateur Radio, and a new item in that category that I creatively called Xastir.  The associated command is "/usr/bin/xastir".  After logging out and in, the new menu item appeared.

Before running Xastir for the first time, I opened a terminal and entered the command:

$ callpass ka9wka

and the computer responded:

Passcode for ka9wka is 19125
$

Of course, you will use your callsign and you'll receive a different passcode.  You'll need that number when configuring the interface.  No, the callsign is not case-sensitive.

After running Xastir, you must perform some configuration, as Richard discussed.  For this test, it was simply a matter of defining my location and adding the Internet interface.  When you launch Xastir the first time, it will automatically open the "Configure Station" dialog, but you can return to that by clicking File, Configure, Station.  Here I entered my callsign and location.  I left the rest of the options at the defaults.

Next, I clicked the Interface menu option, then Interface Control.  This brings up an empty list of configured interfaces.  I clicked Add, chose "Internet Server", and clicked the Add button. The "Configure Internet" dialog box appeared.  I entered 19125 into the Passcode field (see above), and "r/42/-87/500" (without the quotes) into the Filter Parameters field.  This filter says, I believe, show all stations within a radius of 500km of 42 degrees N and 87 degrees W.  Modify to suit your location and preference, and click OK.  Finally, still in the Interface Control dialog box, I clicked Start All.  The status changed from DOWN to UP, and I closed the dialog box.  In a few moments, stations began to appear on the map.

There are a lot more options in Xastir that I haven't explored here.  For example, if you're planning on installing this on a laptop with a TNC and GPS device attached, you'll need to add interfaces for those as well, and you'll probably want to add a more detailed map for your area.  For now, this should get Xastir running under Linux Mint with a minimum of time and bother.

73,

-Bill, KA9WKA

LHS Episode #028: The Art of Listening

rx320d_rearIt's the holiday season, and our gift to our listeners is a brand new podcast. During my time at Ohio Linux Fest back in September, several of the participants who visited the Linux in the HAM Shack booth provided topic ideas for the program. I recently dug those topics up and Richard and I will be tackling them over the next few episodes. In Episode #026, the topic we decide to visit is shortwave listening, including hardware and Open Source software for that very purpose. SWL is a way for non-hams to approach the hobby without encountering mic fright, and a way for existing hams and non-hams alike to explore the world of radio frequency communication, whether it be foreign broadcasts, pirate radio, amateur radio or time beacons. With several manufacturers of equipment still in business, SWL is by no means a lost art, and may be an interesting extension to the amateur radio hobby for those who don't currently participate in it.

Several thank yous go out to those who donated to the Dayton Hamvention 2010 fund. With my upcoming matching contributions we'll be about halfway to our goal. Please keep those donations coming, even after we've met our goal, so we can continue to improve our equipment, our hosting and our program. As always, thank you for downloading Linux in the HAM Shack. Please send us your feedback and questions, and please tell everyone you know about us--through word of mouth, blogging, social networking, whatever it takes. Our listenership continues to grow, and we hope that trend continues for years to come.

73 de Russ, K5TUX

LHS Episode #027: Where Are My Meds?

haarpWe have topped 40,000 downloads! Thanks go out to all of our listeners and live webcast attendees for making Linux in the HAM Shack as popular as it is. Give yourselves a huge round of applause. We're also well on our way to our donation goal of $750 so we can buy booth space and Internet access at the Dayton Hamvention in Dayton, Ohio, in May of 2010. Thank you for all of your donations. Please keep them coming as you're able to send them in!

In this episode, we address listener feedback and comments, and then in a burst of inspiration invite listeners from the chat room to come onto the program for a lively and very fun roundtable discussion. Topics were varied, from portable antenna design, to life without Red Bull; from the HAARP VLF array in Alaska to D-STAR, PACTOR and other digital ham radio communication modes. And since I was on meds and Richard was off his, things got a little crazy towards the end.

We hope you enjoy this episode of Linux in the HAM Shack. Please leave us comments or questions on the web site or via voice mail at 888-455-0305. And send your best wishes to Bill, KA9WKA, who has taken on the responsibility of getting LHS's show notes out in a timely fashion. Thanks, Bill. You're a lifesaver!

73 de Russ, K5TUX

LHS Episode #026: Junk in the Trunk

irlpBack from Baltimore and ready for more ham radio, Linux and Linux in the HAM Shack. I had originally planned to get this episode out before I left for the Large Installation System Administration conference in Maryland, but it didn't work out that way. I even brought all the audio with me to assemble the podcast during my off time at the conference. It turned out there wasn't any off time, so I wound up having to finish up when I got home. That being said, I have to admit this is my favorite episode so far.  It seems like Richard and I are finally getting the hang of this podcast thing. We truly appreciate all our listeners. It makes the time, effort and money of putting out this program worth it.

In Episode #024, we bring you some final wrap-up from Ohio Linux Fest, including interviews with ham radio operators, Linux users, Beth Lynn Eicher from OLF, members of the Drupal project and more. We answer listener comments and questions, of which there are many, and I talk about my getting back on the air and include my new experiences with digital communication via ham radio, from PSK to IRLP. Grab a drink, sit back and enjoy this episode of Linux in the HAM Shack. And if you have a spare couple of dollars, drop them in the can so we can bring our show to the national ham radio convention in 2010: The Dayton Hamvention.

73 de Russ, K5TUX