AmateurRadio.com

I’m trying something new this weekend and operating VHF RadioSport is a first inside the shack relaxation zone. My operating location isn’t a hilltop nor am I located inside my vehicle either. It is one of those fantastic days when weather conditions fall into place. The marine layer isn’t rolling in early or lingering late without a hint of sunshine.

Our Cycle 24 generator has heated ambient air into the comfortable seventies. The sound of Morse code mingles with finches and scrub jays creating wonderful conditions both inside and outside the shack.

CQ World Wide VHF Contest (link).

VHFDX (link).

Certainly, this weekend isn’t going down as epic 6m, instead, it is taking on a new challenge and propagating a little radio frequency toward unknown destinations.

73 from the shack relaxation zone.

SFI = 79 | A-index = 1 | K-index = 0 | Sunspot count is 17 @ 2111UTC.

Image courtesy of Astrid's Embroidery

1. Quick Identification

   It’s very important that other hams can identify you quickly at hamfests, classes, license tests, club meetings, and other events.  A callsign hat lets others know, from across the room, who you are.  If you are involved in EmComm, being recognizable is even more important.

2. Conversation Starter

   If you have your call on your license plate, you’ll be able to relate to this.  “What does WA7MDE mean?”  There are a few ways to answer this, but it really is a great opportunity to educate the public about our hobby and the contributions Amateur Radio operators make to society.  By displaying your callsign proudly, you’ll be surprised how many people will ask you what it means.  You might also meet other hams in your area, at the grocery store or a local restaurant, and have the chance to have an eyeball QSO with a new friend.   Use the opportunity!  Network and grow the hobby in your area.  While our hobby is often about talking to people all over the world, the real fun happens in your own community when you have the chance to interact with others who share your interests.

3. Support Our Hobby

   Are you proud to be in this hobby?  Are you proud of the service we offer to the community? Then why aren’t you showing it?  There is something special about the camaraderie that the men and women in our hobby share.  You’ve worked hard for your Extra (or General or Technician) call.  You should wear it on your person proudly.

Where can you buy one?  Most communities have local embroidery shops that will make you a hat for under $15 or $20.  If you don’t have a shop in your area or you would rather buy one from a fellow ham, Todd WM8C owns and operates Astrid’s Embroidery in Michigan.  They ship all over the United States and offer a huge selection of styles.  They even have a huge gallery for you to browse through.  Not comfortable ordering online?  Call them at (269) 795-7297.

Know of other embroidery shops owned by hams?  Post them in the comments!

As I’ve stated in the past, I’m fascinated by the use of radio communications by governments for espionage and wartime use.  When I came across this little nugget, I couldn’t resist.  What a joy it will be for those of us that can’t quite make it over to visit Bletchley Park.

The BBC has an article at:

http://www.bbc.co.uk/news/10239623

Bletchley Park (really hard to resist using “BP” for this one…..) has been trying to do this for quite some time.  Dwindling funds, repairs needed for the site have just made this one of those “round to it” projects. Many documents are too fragile to handle at this time and will take awhile to get posted online, but it will indeed make for a fascinating online resource.

I’ve had the pleasure of actually getting my hands on  real, wartime Enigma machine and it was REALLY NEAT!!!  You can read about it, but there is nothing like actually using one to get you even more interested in this topic.  Professor Tom Perera gives a number of great discussions at the New England ARRL Division convention in Boxboro Mass (I spoke to Tom at Dayton and he said there may not be a presentation this year).  His site is a HUGE wealth of information on this topic (and CW keys).  If you ever get the chance to hear him give a presentation – JUMP ON IT!!!!

His website is:

http://chss.montclair.edu/~pererat/telegraph.html

If you want to visit the actual Bletchley Park site and look at the offerings there, check them out at:

http://www.bletchleypark.org.uk/

The West Mountain Radio RigBlaster has always seemed to me to be evidence that most ham radio enthusiasts have more money than sense. Why spend all that when you could easily manage using a couple of cables?

Even if you wanted switching and level controls like you get with a RigBlaster, a sound card interface is not exactly rocket science to build, nor should it be expensive to manufacture. It’s hard to see how the cost is justified, given that the RigBlaster doesn’t contain an actual sound card.

You would think that someone forking over $200 or more for an interface would expect it to contain a sound card so as to preserve the one in the computer for normal use. But no! West Mountain Radio actually try to make a virtue out of this lack. Under the heading “Why RIGblasters don’t have built in sound chips” they state:

We designed RIGblasters to leave your computer’s sound fully functional as it was before. Plugging in any external audio device with Windows automatically disables the computers built in sound system. There is a work around’s to restore your computer’s normal function but this leaves most of the Amateur Radio sound card programs non functional. Re-configuring the few programs that can be re-configured is a chore that is not necessary with any present RIGblaster.

We do not use sound chip VOX circuits either; as any sound generated by a computer will go out over the air whether you want it to or not. We don’t want illegal transmissions of Windows melodies or “You have mail”!

Since every Amateur Radio sound card program, without exception, has provision for positive PTT control via a RS232 serial port we provide a software controlled PTT circuit in every RIGblaster, via USB, instead unpredictable VOX PTT operation.

Also the majority of Amateur Radio sound card programs work perfectly with any sound card! The only programs that require anything special are those written for transmit speech processing or digital audio over HF, and those only require a standard full duplex sound card, which is what most computers have anyway. Using transmit speech processing and digital audio is only possible with one interface on the market: the RIGblaster Pro!

What utter nonsense! The first paragraph is completely untrue, while the risk of unwanted announcements being broadcast if you use VOX is only present if you use the computer’s one and only sound card which the RigBlaster’s lack of one encourages you to do. An interface with its own sound card that you could dedicate to radio use would eliminate the risk entirely.

Whilst PTT control using a serial port is technically better than audio derived VOX, the fact that the majority of digital modes work quite happily with VOX combined with the fact that most computers don’t have serial ports make the VOX based solution by far the most convenient. And convenience is presumably what you are paying for.

What’s more, the lack of VOX forced many people who used RigBlasters to use TWO serial ports, one for the CAT control and one for the PTT, because the RTS and DTR lines, though unused by the CAT interface, were inaccessible to the RigBlaster.

At the other extreme, there are several ham websites that state that the quality of the built-in sound cards in computers is so poor that they cannot be used to operate digital modes satisfactorily. The only answer is to buy another plug-in board or use a SignalLink external sound card. I have never used a SignalLink, but the quality of all the low-cost USB sound cards I have tried has been demonstrably too poor to work with most digital modes. I have never had a problem using the built-in sound hardware, usually based on a Realtek chip. Another example of the nonsense talked about sound cards. The only problem is, each computer contains only one, which isn’t enough if you want to interface two or more radios or retain the ability to hear the sound from online video and audio.

Modern sound cards are getting very expensive due to the fact that they must perform as home cinema systems with surround sound, special effects and so on. There is a real need for more reasonably priced ham radio dedicated interfaces that include plain and simple sound cards. Currently the only products that I know of that do this are the SignalLink and the RigExpert interfaces. It’s time the RigBlaster started living up to its name and becoming a complete radio to computer interface instead of an expensive fancy alternative to a couple of home made cables.

There was a lot of excitement on the Elecraft email reflector over the fact that the majority of participants in the World Radio Team Championship 2010 (WRTC 2010) were using Elecraft K3s. There was even more glee when it was discovered that Scott Robbins W4PA, former Ten-Tec product manager, and Tim Duffy K3LR of Team Icom had taken K3s. This was like the President of Coca Cola serving Pepsi at his anniversary party!

There have not been many comments now the results are out, which show that the top two teams, from Russia and Estonia respectively, were using FT-1000MPs. The USA team of N6MJ and KL9A in third place used K3s, as did K5ZD and W2SC who came fifth, but the fourth placed S50A and S57AW again used FT-1000MPs as did the Lithuanian entry in seventh place.

So let’s get this straight: the winning stations and several others in the top ten used a now obsolete radio that was introduced in 1996 which has frequently been criticized as inferior to the K3? I suspect the fact that many international competitors took K3s may have more to do with the fact that the Elecraft radio is small enough and light enough to be taken on an aircraft as hand baggage. And I suspect that the reason for the success of the stations using FT-1000MPs is that there is more to winning a contest than having a receiver with the best performance numbers.

Anyone want to swap an Elecraft K3 for an FT-1000MP? (Only joking.)

Ed Piskor's QSL card for N2H

The station has a great QSL card (above) which was drawn by Ed Piskor of Wizzywig Comics.  Ed shows on his blog how he created the QSL card. I will have to try and catch N2H on the air to get one of those cards.

Great to see amateur radio involved in the hacker scene.

For above image note: Ed Piskor / CC BY-NC-ND 3.0

Last Saturday, I made two QSOs (a quiet day, then!) but what interested me was the difference between them. Both highly enjoyable, but of very different natures.

Sitting out in the sun, before breakfast I was listening to my IC-E92ED handheld, monitoring the local 2m repeater, GB3WH and the D-STAR reflector REF005A. Tyler, WX4TX from Knoxville, TN popped up on D-STAR and we had a great chat. Tyler was some distance from his local D-STAR gateway, but was running 50W and a beam antenna pointing at the gateway. The connection was solid, with a few moments of R2-D2 audio as the propagation went up and down. We had a good relaxed chat about the different styles of breakfast in our respective countries – Tyler was planning a Buttermilk and Cornbread breakfast!

A few hours later, I was briefly in the shack, doing some work on the computer – monitoring 70.200. I heard a little SSB a little LF of the calling frequency. It turned out to be a Spanish station operating from the coastal area near Alicante. He was using 10w to a small beam and I was surprised to work him with my small station. Interestingly it sounded like propagation was favouring the Oxfordshire area as he was hearing the GB3RAL beacon at Harwell, me and not much else! Shortly after our QSO he faded out and I’m sure that the propagation moved to favour another area of the country.

Two different types of contact – but both very enjoyable. Diversity is one of amateur radio’s strengths!