Proposal for a fourth ultimatic mode: First paddle priority

The ultimatic mode is an alternative to the iambic mode for sending Morse code from a dual lever paddle. When pressing both paddles the last one to be pressed takes control, rather than the alternating dit-dah or dah-dit of the iambic mode.

In the K1EL Winkeyers there are actually three ultimatic priority modes. This is shown in the table below that comes from page 9 in the specification for the command for setting the PINCFG Register. (K1EL CW Keyer IC for Windows Winkeyer2 v23 10/5/2010). This is a de facto standard for interfacing to and controlling a keyer, as an example it is used in the K3NG Arduino Open Source Morse keyer.

K1EL has defined bits 6 and 7 for setting this up by remote command. I propose that the last possibility, ’11’, presently undefined and unused, be used for a new mode. This mode is “First paddle priority” meaning that the last paddle which is pressed is ignored. It can also be interpreted as an emulation of a single-lever paddle. I and others have found that helpful in eliminating errors when keying. See for instance “Single Paddle operation with Iambic paddles” by Larry Winslow, W0NFU, in QST, October 2009 and the Iambic to Single Paddle kit from WB9KZY or my earlier blog post “Single-lever and ultimatic adapter“.

My proposal is that the bits for the ultimatic mode be used like this:

  • 00 – Last paddle priority, i.e normal ultimatic
  • 01 – Dah priority
  • 10 – Dit priority
  • 11 – First paddle priority or Single Paddle Emulation (New)

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Sverre Holm, LA3ZA, is a regular contributor to AmateurRadio.com and writes from Norway. Contact him at [email protected].

Arduino Frequency Display For Kenwood TS-520S HF Ham Radio PART 2

This is (PART 2A & 2B) of the project “Arduino Frequency Display For a Kenwood TS-520S HF Ham Radio”. This part covers small signal amplification of  a 0.2 volt peak-to-peak 5.5 MHz signal into Schmitt triggered NAND gate for cleanup before being cleanly counted by the Arduino. All parts: (PART 4), (PART 3), (PART 2), (PART 1)

(PART 2A)

(PART 2B)

Here are the datasheets for the two chips I used in (PART 2)

74HCT132 Quad 2-input NAND Schmitt trigger (PDF)
NE592 video Amplifier (PDF)

 

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Todd Harrison, KF7NBI, is a regular contributor to AmateurRadio.com and writes from Arizona, USA.

Are American Amateurs Different?

I’ve noticed two things in recent years, and I’m not sure if it’s just me or I’m really on to something different with American radio amateurs.  The first observation is that there seems to be more “homebrewing” or construction of equipment outside of the US.  This isn’t to say there isn’t homebrewing within the US, far from it.  Obviously there is an active and vibrant QRP community in the US.  But as a general trend, there seems to me to be more equipment construction and “rolling your own” in other countries.  I’ve noticed with the number of inquires and feedback emails I receive for my open source amateur radio hardware projects, foreign amateurs outnumber US amateurs by a ratio of 10 to 1.  Most are in Europe, however I’ve heard from amateurs in India, Japan, Australia, and other countries outside of Europe.  I think US amateurs spend a lot of money on the hobby, but there seems to be more of a buy it and operate mentality where DX amateurs tend to be more frugal and more apt to construct things.

My second observation is that US amateurs seem more down about the future of amateur radio, in general, than foreign counterparts.  US amateurs tend to complain about the state of the hobby, ARRL, the FCC, code tests, incentive licensing, young people, etc.  US amateurs tend to be more negative online.  They’re much more apt to bring up partisan politics in QSOs and online, and they often make mental leaps connecting the perceived decline of amateur radio and the social and political climate in the US.

These are just observations, and I have no scientific data to back this up.  I’m especially curious about what radio amateurs outside of the US observe with those in their countries. Is the US unique in some regard with attitudes about amateur radio?  Do you feel there’s more low-level technical experimentation outside the US?  Is this all just my perception and not reality?


Anthony, K3NG, is a regular contributor to AmateurRadio.com.

Spring Hike to Profile Falls

It was gorgeous today. Tim W3ATB and I headed to Profile Falls and set up right alongside the Pemigewasset River. We worked Russia, the Canary Islands, PA, OH, NC, and Belgium.

We had lunch in Bristol and then drove out the back road toward Hill Village. We turned left toward the Smith River and parked the car not far from Profile Falls.

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We walked through the woods about a half mile toward the Pemi. The Corps of Engineers has a picnic area along the river. We set up right under an 85 foot pine tree.

Tim brought his HB-1B and tossed a line over the pine branch and pulled up his portable Par antenna. He was running about 4 watts with internal batteries on 20 meters and snagged W1AW/8 in Ohio within a few minutes of sitting down. He was ecstatic.

tim2

I set up on a nearby table. I tossed a line over a second pine branch and pulled up a 33 foot wire. I was using the earchi.org 9:1 unun with the internal tuner on the KX3. I set up on 12 meters with 5 watts.

I worked Alex RA6MQ in Russia almost immediately. He was a 599 and gave me a 559. Within two minutes, I worked another station… EA8/OH2OT in the Canary Islands. We exchanged quick 599’s.

jim

I switched to 10 meters, and worked ON6MG in Belgium followed by Alex RA6MQ again. He had also switched to ten meters. It was fun to work him on two bands. By now my fingers were getting a bit chilly so I built a small fire in the grill by the table and listened while Tim racked up the QSOs.

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Tim had a long chat with Don, KD3CA in PA and told him we were operating outdoors alongside the river. When they finished Tim made a quick contact with K4DJ in North Carolina and exchanged SKCC numbers.

We packed up and walked along the river to enjoy the remarkable scenery… sparkling water, deep blue sky and brilliant snow. We stopped for a minute to soak up some warm sun before heading back down the trail towards the car.

From here, it only gets better… warmer days, melting snow and finally spring!


Jim Cluett, W1PID, is a regular contributor to AmateurRadio.com and writes from New Hampshire, USA. Contact him at [email protected].

Sri Lanka

It was early (06:21) in the morning, but I tried 10 meter checking for activity. I only heard 1 CW station; not very strong but finally I could decode the signal 4S7LXG Sri Lanka. A new DXCC, so I tried my luck. Yes, after a few calls he replied to me. That’s DXCC number 132.


Paul Stam, PC4T, is a regular contributor to AmateurRadio.com and writes from the Netherlands. Contact him at [email protected].

Our Club Activity at the Charleston Hamfest

Last year, in 2013, before the WV Chapter of the NAQCC Club was established, I set up my QRP station at the Charleston Hamfest and worked several DX stations in Eastern Europe with just a few watts of power. I used a simple “dedicated band” dipole antenna. It drew a lot of interest from many people. I was invited back, this year, to do a special QRP forum.

On March 15th, I saw this new opportunity, as a way for our new West Virginia Chapter to share our enthusiasm for QRP CW radio and especially the NAQCC club.

I’m very grateful to John Shannon (K3WWP) for the use of his banner. It looked great sitting on top of the table and was a good focal point for conversation. I’m also very grateful to the staff of the Charleston Hamfest for allowing us this opportunity to highlight our NAQCC club.

The hamfest committee provided me with a small dual band HT, to give away at the end of my presentation! I had those attending the talk put their tickets in my hat and had a little girl draw the winning call sign.  This went over VERY well and allowed me a captive audience.

Our club members Eric (AC8LJ) and Steven (KC4URI) helped me with both the presentation and the “club table” at the event. We were also joined by Jeff (K9ESE) and Jim (NX8Z). In addition to these members of the “core group”-  I met a few more members of the NAQCC club. It was nice to see Lonnie (KY8B) # 5043 and Bill (WR8S) #6608, who by the way, has a great idea for a future highlight of the club.

Bill (K3QEQ) # 1426 introduced himself to me. We were having a nice conversation about QRP, and the new chapter, and when he offered me his QSL card, I immediately realized we had previously worked many years ago. I remembered the exact CW conversation, which by the way, lasted nearly an hour at the time. We’re both Navy vets, and as old sailors, we exchanged several sea stories.

The longer I continue CW operations, the more I realize how many of us served our country when asked, and are still very proud, not only our own efforts, but of all those who served in difficult times.

Just a few weeks earlier, I had some new “business cards” printed myself (radio is now my second career) and I exchanged mine for his. 
By the way, for those who may choose to do so, you can get 250 of these for $14.95 from an internet site. E-mail me and I will send you the link. I altered the card a bit for internet display, but you can get the jest of it below. 

I especially like the “back side” of the card.  
My presentation emphasized the fun of operating radio in the field and our preference for simple wire antennas. I made sure the NAQCC club was portrayed as a enthusiastic group dedicated to the art of Morse Code. I talked about our monthly sprints, newsletter, our award programs, and our monthly challenges. I emphasized our willingness to help new Hams struggling with the art of Morse Code, and a preference for using slow straight keys among several other aspects of the hobby. 
I also had a great conversation with Geoff Boorne who is the curator of the Huntington Museum of Radio and Technology. I still thinking of  that great nine element beam our club used last month. I’m looking forward to receiving their next newsletter since I applied for membership in that organization. They also have a functional QRP station there now along with a fan dipole. (hint) 
At the end of the day, I had the names and e-mails of 20 people who attended my power point presentation. I personally had a good time, and with the help of the “core” group of our members, it was a successful event. 

John Smithson, Jr., N8ZYA, is a regular contributor to AmateurRadio.com and writes from West Virginia, USA. Contact him at [email protected].

LHS Episode #124: Dog Boarding

beaglebone-in-handHello, folks! A couple weeks late and a dollar or two short, we’re back! In this delectable episode of Linux in the Ham Shack, your intrepid hosts discuss a variety of topics from antenna safety to Linux conventions to getting your name on an asteroid. For our main discussion, we tackle a couple updates to Linux distributions, including one specifically for amateur radio use. Then we plow on through a heaping helping of feedback. Thanks for tuning in, and be sure to tell all your friends about us. Also, hope to see you all at Dayton this year! Rewards for those who pledged to our fund are coming soon. Stay tuned.

73 de The LHS Guys


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].

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