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Before you knew it 00:00 came and the ARRL international CW contest was a go. During my first 1/2 hour 20m was open but only to non DX to me. So it was off to 40m's and it was alive and hopping! Here at VE3WDM the contest power is 5 watts or less. The band was crowed and the pileups long I did give a few DX stations a call but the KW powered stations going back to the DX really gave me no chance. I did hang in for the whole 1/2 hour but it was just not happening to night. I shut the rig down for the evening just to crazy out there, once the contest adrenaline cools I will get back on. I am looking at Saturday to give 10m, 15m and 20m a go for some DX soup.
Until then....contest on!!
Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

Do you live in a neighborhood with a restrictive antenna policy and despair of having a useful HF antenna?

Can you solder or know someone who can?

A magnetic loop antenna may be the answer and they are not as difficult to build as you might think. Like getting on the air for the first time or taking your license exam there is a certain amount of uncertainty when you first approach magnetic loop antennas, there are a few new ideas to grasp. However, thanks to other hams like Steve AA5TB there are tried and tested designs, calculators & building methods that are known to work and that you can follow.

At the heart of every radio and MLA (Magnetic Loop Antenna) is the resonant circuit. The combination of an inductor (a wire has inductance, but a coil of wire has more) and a capacitor (two conductors separated by an insulator) in a circuit will resonate or ‘ring’ at a certain frequency. Sound vibrations at a certain frequency can cause a piano string to vibrate in sympathy and a vibration of the correct radio frequency will cause a resonant circuit to electrically vibrate in sympathy.
Since there is no such thing as a free lunch, the sacrifice you make with a MLA is that it needs to be re-tuned whenever you change frequency on your transceiver. The frequency range over which it is resonant is very small, typically only a few hundred kilohertz at the most.

The materials you can get your hands on is going to decide the capabilities of your MLA. Ideally you’ll have a loop made from a conductor with very low resistance (usually copper) and a capacitor that can handle high voltages. A variable capacitor is required if you want to use your antenna on multiple frequencies but you can use or make a fixed capacitor if you operate on one frequency, for Eg PSK31.

A MLA calculator like the Excel spreadsheet from Steve AA5TB or this web page from 66pacific.com will help you to decide what size components you’ll need to make your antenna.

The four pieces of information required are:

1. What frequency or frequencies do you wish to transmit on?
2. How large do you want the loop to be (It should have a circumference less than 10% of the design frequency wavelength, both calculators help you figure this out)
3. The diameter of your conductor (Three quarter inch (0.75 inch) copper pipe is a good start)
4. How much power you want to use (The voltage across the capacitor is proportional to the input power to the MLA)

Owen Morgan, KF5CZO, is a regular contributor to AmateurRadio.com and writes from Texas, USA. Contact him at [email protected].

Introduction:

• We’re a little light on content, but we’ll make up for it with enthusiasm!

Announcements:

• Ronny, K4RJJ, will be the LHS ambassador at the Dalton Hamfest, February 25, 2012, in Dalton, GA. Stop by and say hello.

Topics:

• Linux Mint 12 Review
  • Richard has been using Ubuntu for some time, but he’s been unhappy with the latest version. He’s rediscovered Linux Mint! Version 12 is out, with Gnome 3, Gnome 2, MATE, and Cinnamon, and he gives a brief review.
  • His primary needs: browser, email, Audacity, XChat, and a few others.
  • Using the Gnome 3 desktop, as a desktop fills with icons, a new desktop is automatically created.
  • By moving the mouse to a hot corner, you’ll see a high-level view of all your open applications.
  • Russ has been using Linux Mint Debian Edition, so he’s missing out on the Gnome 3 goodies, at least for now.
  • Our hosts then drift into a discussion of various desktop managers and visual effects.
• WINE: Wine Is Not an Emulator
  • WINE is a collection of libraries for Linux that support Windows library calls from a Windows application.
  • EchoLink, for example, is a Windows application works quite well under WINE on Linux.
  • If you can’t find a native Linux application that does what you want, you may find that WINE will allow you to run the Windows program.
  • There are a couple of different versions of WINE, all based on the core version of WINE.
  • Cedega: a version of WINE that supports a variety of Windows games.
  • CrossOver: a version of WINE that originally focused on supporting business applications such as Internet Explorer and MS Office, but has also expanded to include some games and running Windows applications on a Mac.
  • Richard browses the list of ham radio applications in the WINE application database.
  • Russ talks about installation and configuration:
    • Red Hat/Fedora: yum install wine
    • Debian-based: apt-get install wine
    • Some repositories may not have the most recent version of WINE (1.4 at the time of recording).
    • Under System Tools (in Linux Mint, or Debian) there is a WINE Configuration tool.
    • To install a Windows program under WINE, download the Windows installer application. At the command line, type “wine [name of installer executable]“, and the setup program should proceed just as with Windows. A program icon should appear under the WINE program folder, and the program will, hopefully, run just like in Windows.
    • Some Windows programs will run just fine under WINE; others won’t. Give your favorite a try and see!
  • One of the most-wanted ham radio applications, Ham Radio Deluxe v. 5.0, does not run at all under WINE. If you can find a copy of HRD v. 4, it should work under WINE. Remember, too, the native Linux application fldigi does much of what HRD would do.
  • Russ has also tried the N1MM Logger under WINE, and it worked fine.
  • The Winetricks tool might help get a Windows application running under WINE.
  • The WineHQ forum is a good resource for help.

Feedback:

• We had a donation from William A. Thank you!
• Leif, KC8RWR, continues a comment dialog about the origin of CUPS in Episode 67.
• G8FXM, mentioned LHS in his blog. Thanks, David.
• The Hoosier Hills Ham Club linked to the LHS site and we linked back. Thanks to W.W., KB9TMP.

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:

• To be added.

Russ Woodman, K5TUX, co-hosts the Linux in the Ham Shack podcast which is available for download in both MP3 and OGG audio format. Contact him at [email protected].

Well I can call it a summit because it features in Wainwright’s book but it really something to write home about as far as height for me. But, there’s always a but, I decided to go with the XYL, kids, mother in law (not sure what the shorthand is for one of those) and two dogs. Abigail is my eldest at 5 years old and Sam is only 3 so to them this was a veritable Himalaya.

Progress as you can image was at their pace and eventually I had an extra 20Kg on my shoulders as we went back into the cloud near the summit of Dodd (LDW-174). The summit is low at only 502m but the propagation into both Southern Scotland and Northern Ireland was in effect and I managed a summit to summit before the kids / XYL got bored. Needless to say the dogs didn’t bat an eyelid.

So I’m off the mark for this year and hopefully I’ll be able to get a few SOTA and WOTA summits in this year although I think I’ll avoid carrying the kids. The lake district is an excellent place to live and visit and I’m glad to have made some new contacts for the log and I hope it will help WOTA to grow and grow

Alex Hill, G7KSE, is a regular contributor to AmateurRadio.com and writes from Cumbria, UK. Contact him at [email protected].

This has been a bad week for me as far as the QRP Fox hunts go.  On Tuesday night, I was only able to hear both Foxes at ESP levels.  I “knew” where they were; but they were much too weak to even bother calling – no way they would have heard me. Tonight is a rare QRN free night on 40 Meters, but alas, same problem as Tuesday night.  I can’t hear the Foxes for anything.

So instead, I headed down the lower part of the band and was picking off Caribbean stations that are flexing their CW muscles for this weekend’s big DX contest.  I got Curacao, and Bonaire and Aruba among others. And I even got a “brandy-new” entity for me via QRP. I worked PZ5RO in Suriname on 40 Meters.  I heard him call “QRL?” and he gave out his call and I nabbed him on my first shot. Sweet!

If you’re new to QRP and you’re hesitant about jumping into this contest, don’t be.  Have no fear, jump in and have fun.  But (there’s always a “but”, isn’t there?) you have to be sensible about it.  For the first half or so of the contest, don’t get frustrated if you don’t get the results that you want.  Remember at the beginning, you will be competing with a ton of QRO stations.  As a beginner, you might want to stay with “hunting and pouncing” and working the loudest stations.  If you try and try; but can’t get an answer within a reasonable amount of time – move on.  Work what you can.  As Kenny Rogers sang, “You have to know when to hold ’em, and when to fold ’em”.  Contests like this will really help you learn the capabilities and strong points of your station.

QRPers stand a better chance during the last half of the contest, if my experience means anything.  Towards the end, stations that are still hungry for points seem to hear sharper as they eke out those weaker signals in order to inflate their point totals.  On Sunday afternoon, I would try working just about anyone that you can hear.  At this point, even the weaker stations without super antenna arrays seem to respond to QRPers.

Don’t be surprised when you find out you can work a lot of DX with low power and modest antennas.  A few years ago, as a personal experiment, I decided to get on Saturday night and work the loudest DX stations that I was hearing, while the K2 was turned down to 1 Watt.  I think I earned the “1000 Mile per Watt” award about thirty times over that evening – and that was when we were in the middle of the sunspot doldrums.

And speaking of the “1000 Mile per Watt” award – you should be able to earn that this weekend without breaking a sweat.  And if you’re working on your DXCC – just starting,  in the middle, or near the finish line, this is always a great event for that.  Also keep in mind Diamond DXCC for this year. I am hoping to inflate my country total big time towards that award.

The contest is also a good way to increase your code speed a bit.  Don’t get frustrated with the guys who seem to be sending at 50 WPM,that sound like a buzz saw.  Pay them no attention – move on.  But don’t fall into the trap of only working slower speed guys either.  Work the ones who are a bit faster than you’re comfortable with.  It may take you eight or nine times to get their call correct; but what they hey – it’s not like you’re in this to take the whole shebang, right?

Bottom line is to have fun – be a “Giver of Points”, relax and have a good time.

On quite a different; but sad note ……. I heard on the radio, on the way home from work today, that Gary Carter passed away, losing his battle with cancerous brain tumors.  Gary “Kid” Carter, along with Johnny Bench may arguably have been two of the greatest catchers the National League has ever seen.  His coming to the NY Mets in 1985 was a catalyst that started a series of winning seasons that lasted until the early 90s.  I had the great fortune to meet him at a baseball card show after he had retired from the game.  Not only was he a great baseball player, totally worthy of his induction into the Baseball Hall of Fame, he was also a total gentleman.  The world of baseball (and NY Met fans) is poorer today for Gary’s passing.  But I’m sure he’s being more than welcomed on Heaven’s All Star Team.

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

Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].

 

Elecraft said they hope to start shipping at the end of February or the beginning of March when I talked to them on the phone today.

I’m at the tail end of the line too, I just ordered on today!

While we’re waiting for that big day when the Kx3 arrives, I was wondering how many ordered the Kx3 assembled by the factory or in Kit form?

Just curious! I ordered mine ‘Factory Fresh’!

 

de AA1IK

Ernest Gregoire

73

 

 

Ernest Gregoire, AA1IK, is a regular contributor to AmateurRadio.com and writes from Florida, USA. Contact him at [email protected].

Dr. Bob Heil, K9EID, is the founder of Heil Sound and host of TWiT.tv's Ham Nation which streams live each Tuesday at 6:00pm PT (9:00pm ET) at http://live.twit.tv. Contact him at [email protected].