AmateurRadio.com

The source of all my Faros problems…..The netbook itself. I hadn’t actually checked the obvious and that was what it was. The noise generated by the netbook was stopping it from finding signals in all the noise. Hence the 100% QSB. When I disconnected and unplugged everything the noise level dropped massively and that was the end of the problem.

Trouble is I sort of need that to run the program. Oh well, I suppose I can try and run it under wine with Linux and put it on the RPI as that makes little or no noise. I feel some hours being used up ahead!

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 [email protected].
• 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 [email protected], Russ at [email protected], or both at the same time at [email protected].
• 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.

Its probably not news to many people but whilst I was thinking about a suitable site for the UKAC 144Mhz contest next Tuesday (4th December) I remembered about a coverage prediction programme called Radio Mobile.

Now seeing as things on the internet are steadily replacing things on the desktop I had a go with comparing sites with the model outputs. As a contest novice I am entering in ‘in the spirit of’ contesting. Any site needed to be quite close to home and easily accessed / operated from.

Radio mobile confirmed what you’d expect, the site closest to home that I can get to with the car isn’t the best but its a whole load better that operating from the house. So armed with the knowledge that I’ll get some contacts at least I’ll take the plunge and aim not to be at the bottom of the pile.

The key kit will be

1. A warm coat (its 20.00UTC – 22.00 UTC) – So it’ll be chilly

2. FT817 and extra power supply – Seeing as it runs out of puff within a few minutes

3. Sotabeams 3 element yagi and fishing pole

4. A flask of tea and chocolate hobnobs

The output from a 4w Tx at the Sandwith site is below. More than enough to get a couple of contacts I hope.

We’ll have to see how I get on next week, but if you’re in earshot listen out for the weedy signal from Cumbria (rather than the stronger on from G4VFL, who has nabbed the Corney Fell site – perhaps I should tramp up Scafell Pike to out do him on height!)

Wow – what a difference a different wire makes.

I signed on to the 40 Meter QRP Fox hunt tonight and spotted Dave AB9CA pretty much right off the bat.  He was a bit on the weak side – and then I switched on over to the W3EDP from the EDZ  Dave went from super weak to 569 – easy!  To say I was amazed by the increase in his signal by changing wires is an understatement.  I went from thinking that I might not have a chance to getting in the log.

Drew K9CW in Illinois is even tougher.  No matter which antenna I switch to, this is going to be tough. I am hearing him the best on the W3EDP, though. Right now about 339 at best.

Fingers are crossed for an improvement in propagation.

Addendum – Got Drew ……… using the Butternut HF9V!  Didn’t think the vertical was the best club in the bag for 40 Meters; but it did the trick.  So much for conventional wisdom!

72 de Larry W2LJ
QRP – When you care to send the very least!

Another reason why Steve WGØAT is one of my Ham Radio QRP heroes …….. imagine hiking up to a mountain top in the pre-dawn darkness, just so you can activate a SOTA mountaintop as the sun rises.

That is dedication, my friends!

72 de Larry W2LJ
QRP – When you care to send the very least!