On Thursday, May 16, I attended Four Days in May (FDIM), an event put on by the QRP Amateur Radio Club International (QRP ARCI). The first FDIM was held in 1996, and QRP ARCI has held it every year since, excluding the Covid years. This year, nearly 300 people attended the event.

Like the name implies, there are FDIM events on Thursday, Friday, Saturday, and Sunday, but the main event is the series of talks on Thursday. These start at 8 am and run until 5 pm. This year, the talks included:

• The Construction and Use of a WhoZat by Jack Purdum, W8TEE. Jack is a retired professor from Purdue University, a frequent speaker at FDIM, and the designer of many microcontroller-powered ham radio projects, including transceivers and antenna analyzers. This year, he talked about his latest design, the WhoZat. WhoZat is a portable, battery-powered device that allows an operator to type in a call sign prefix and obtain information about the country associated with the callsign. It will give you the country name, and the azimuthal bearing from your location to that country. One of the takeaways from this talk is that the WhoZat is powered by a Raspberry Pi Pico, and Jack encouraged everyone to consider the Pico for future projects because it has more computing power and more memory than most Arduinos.In addition to talking about the WhoZat, Jack was promoting his latest book, Digital Signal Processing and Sofware Defined Radio. It’s available on Amazon for $45.
• Top 10 Junkbox Projects by Hans Summers, G0UPL. Hans is the genious(?), madman(?), entrepreneur(?) behind QRP Labs. In this talk, he extolled the virtues (as I have done) of a well-stocked junkbox. The project that resonated the most with me is the one-tube transmitter.The reason it resonates with me is that I’ve been threatening to build one for years myself. Hans actually did it, though. In fact, he made his first QSO with a transmitter he built from an ECL82 tube.At the end of his talk, Hans gave a little plug for his newest transceiver, the QMX+. The embedded SDR rig covers 160 – 6m, in a slightly bigger form factor than the QMX, for only $125. It’s incredible, really.
• zBitx–A Portable Station for the CW Operator by Ashar Farhan, VU2ESE of HF Signals. In this talk, Ashar described his zBitx, a portable CW/FT8 SDR transceiver. This isn’t a radio that Ashar is selling (yet!), but it does look like a complete design. And, of course, that design is completely open source, something he ribbed one of the other presenters about.

  

  This radio is powered by a Raspberry Pi, specifically the Raspberry Pi Zero 2 W. This module costs $15 and runs Linux. Ashar says, “If Arduino was a matchbox RC car, this Raspberry Pi is an Airbus A380, both in terms of size and speed. It can run WSJT X, fldigi, and full-stack SDR.” The radio also takes advantage of the WiFi capablity of the RPi. There’s an app that runs on a smart phone that acts as a front panel.

  At the end of his talk, instead of flogging a product, Ashar passed out a small PCB assembly called the sBitx Hat. Designed to plug into a Raspberry Pi, it includes an Si5351 clock generator and a 96 kbps, dual-channel audio codec. It looks it will be a fun thing to play with.

• Adventures of a QRP Evangelist by Cliff Batson, N4CCB, proprietor of the QRP School YouTube channel. Cliff gave us a primer on QRP operation and on how to make YouTube videos. He encouraged us all to go out and make videos. I’m not so sure about this myself. It seems to me that there is already too many ham radio videos to watch.
• Amplifying Your Adventures, Minimizing Your Power by noted YouTuber Tom Witherspoon, K4SWL. In his presentation, Tom concentrated on the personal and operating aspects of QRP, not the technical. The conclusion published in the proceedings does a good job of summarizing his talk. It reads, “Since my journey into ham radio began in 1997, I’ve encountered countless naysayers proclaiming, ‘That won’t work’ or ‘Life’s too short for QRP.’ These discouraging words often came from individuals who lacked firsthand experience in the field. Rather than accepting the pessimistic views, I’ve treated them as a checklist of challenges to overcome. my approach has been simple: get out there, experiment, and fully immerse myself in the moment. It’s through this hands-on exploration that I’ve discovered the true joy and potential of QRP operations.”
• Designing the Elecraft KH1: From Vision to Reality by Wayne Burdick, N6KR. Wayne certainly needs no introduction. His talk concentrated on how he made some of the decisions he made in designing the Elecraft KH1 hand-held HF transceiver. It was a great talk that gave quite a bit of insight into the design process. Personally, I’m not sold on the KH1, but Elecraft can’t make them fast enough, so I guess that tells you how valuable my opinion is.
• The Amazing Thermionic Valve by Greg Latta, AA8V. Greg is a professor emeritus of electrical engineering from Frostburg State University. He delved into some of the theory of how vacuum tubes work and some of the practical applications.
• Stealth Operation from Hotel Rooms and Other Unlikely QTHs by Ross Ballantyne, VK1UN.

Unfortunately, Ross was unable to present, either in person or via Zoom. According to the paper in the proceedings, Ross was part of several peace-keeping missions to remote spots around the world. On these trips, he operated from many hotel rooms and gained quite a bit of experience doing so. For example, he writes that virtually all of his antennas are made from wirewrap wire, which he gets from Ali Express. To couple the wire antenna to the transmitter, he uses a Z-match tuner or a modified Z-match tuner called the FRI match ATU. It’s a shame that Ross wasn’t able to adress us in person, as he sounds like quite an interesting fellow.

A walk with VU2ESE

After the talks, I decided to take a walk and stretch my legs. Just as I got to the street, I ran into a friend of mine, Arun, W8ARU, and Ashar, VU2ESE. We decided to walk together, and ended up walking about a mile and a half or so.

Arun and Farhan have been friends for many years. In fact, Arun hired Ashar to work for a company that Arun owned when he lived in India. (Arun now lives in Ann Arbor, MI, which is how I got to know him.) Arun once told me the taught Farhan how to solder. I confirmed that story at Hamvention last year when Ashar visited the ARDC booth.

In addition to all his development activities, Farhan recently joined the board of directors of Amateur Radio Digital Communications (ARDC), the private foundation that I retired from last May. We had a great chat about the future of ARDC and amateur radio in general, among other topics. It will be interesting to see in which direction the new board members take ARDC.

Vendor Night

Thursday evening, FDIM holds Vendor Night. It’s a great deal for vendors. There’s no charge to participate as a vendor, and it’s a lot of fun. A couple of years ago when I did Vendor Night, I also shared a booth with the Dayton Makerspace on Friday and Saturday at Hamvention and ended up selling more books in 2 hours at the FDIM Vendor Night than I did in 2 days of Hamvention.

This year, I sold about $150 worth of books. What was even better was meeting everyone, including those who have used my books to get licensed or to upgrade. For example, Tom, K4SWL, came over and shared his story with me.

He said that one year his wife said that she would also get her ticket as an anniversary present. He gave her my study guide and ten days later, she had her license. How cool is that?

Kudos to QRP ARCI for another successful FDIM. If you’d like to get a copy of this year’s proceedings, you can contact them by emailing toystore@qrparci.org or n8et@woh.rr.com. QRP ARCI also has some other goodies, if you’re interested, in their Toy Store.

And not all that much radio to show for it - oy!

Although I did get on Friday night for a couple hours after dinner to partake of the QRP ARCI Spring QSO Party, which ran from 8:00 PM to Midnight, my local time. There was a decent amount of activity, which was really, really nice to see/hear. I worked 17 stations - all QRP ARCI members. I mainly searched and pounced, but I did call CQ on 20 and 40 Meters, not so much to run a frequency, but to get an idea via the Reverse Beacon Network in order to see where I was being heard.

From the results tally so far, I'm sitting in the bottom third of the pack, which I half as much expected. If I had put in the full four hours, instead of just under two, I probably would have worked a lot more stations. When I decided to pull the plug stations from the West Coast started coming in on 20 Meters and I worked two from Washington state. I was beat because Friday afternoon was an experience in and of itself.

Recently, Marianne and I decided to drop Verizon FiOS TV from our Verizon package. Neither of us watch TV all that much, and pretty much everything we want to watch, we can catch on our Roku device - pretty much everything, expect for local channels. I'll be looking into getting an indoor HDTV antenna as the only thing I don't want to miss is "Jeopardy" and NYC is only about 25 miles away as the crow flies, so I should be able to get WABC TV rather easily. Dropping the TV portion of the bill reduced it .......... dramatically.

However,  when you drop the TV package, Verizon has to come in and install a new router, as that's how the TV portion is transmitted. When I called to make the service appointment, they noted that my internet connection was ancient, and they upgraded that and provided a new router free of charge.  The upgrade in internet speed is quite noticeable Not so much on my phone or laptop, but the data to my Hamclock set up in the basement shack is much faster and I get a lot less fewer drop outs/error messages..

The pain in the posterior aspect of all of this is that re-setting devices for the new SSID and password is akin to going around the house and re-setting clocks for the time change! I didn't have to deal with Cara or Joseph's devices as they're young and computer savvy, and I didn't have any trouble reconfiguring the laptop in the computer room, or Marianne's and my phones and tablets.

The "fun" part came when reconfiguring our Ring doorbell and chime. The instructions they give you on line are there all right, and complete - but they're not the easiest to locate. It's almost like operating the menus on an HF radio where there are multiple sublayers. I finally figured that out and got those working again. Reconfiguring the Rokus was quite easy, because as soon as the Roku couldn't detect the internet via the old SSID, it took you directly to where you had to reconfigure for the new one.

The real pain in the butt one was/is the weather station. I have an Ambient WS-2902. I managed to dig out the instruction manual to refamiliarize myself with the procedure for setting up the wifi connection. it's actually quite simple as you go to the Ambient Tool on your phone and go from there. And that's where things got interesting. My weather station has been out there and running since ........ it was either 2016 or 2017 when Marianne bought it for me as a Christmas gift. The current version of this model weather station is the WS-2902D. The Ambient Tool has gone away and has been replaced by the AWN app.

Not a problem, right? Just go to Google Play, download the new app and reconfigure the wifi, right? That's what you would think, but it turned out to be much more than that. I followed the instructions, which told me to press the "wind" and "pressure" buttons on the console until a little wifi icon popped up in the temperature indicator square. I tried that several times with no result. So I thought maybe I have to unplug the console from its AC adapter, wait a minute and try again. I did that - no wifi icon.

As they say, Google is your friend and I searched on "Reconfiguring wifi for WS-2902". What I found was that the AWN app will NOT work with the original WS-2902 and the old Ambient Tool is no longer available. I had changed phones since I originally installed the weather station, so the old app was not carried over to my current phone. The solution is that I had to purchase a new WS-2902D console. It will work with the sensor package, as that hasn't changed (except that I can now add some fancy new things, like soil moisture detectors and lightning detectors, which I chose not to do). It should be here within the week, and in the meantime the weather station is still working, it's just not reporting to WeatherUnderground and the Ambient Weather Station network for now.

Saturday was our monthly VE Exam session and we had two candidates, with one coming all the way from East Stroudsburg, PA. One got his Technician ticket and our East Stroudsbuger, Jeremy KB3OPJ upgraded to Amateur Extra.  After the exam session, I headed over to a clothing drive for HCT Technologies, the company that finances SPARC, to help with accepting bags of used clothes.

Sunday morning it was back to the clothing drive for a while and then into Plainfield to help out with our parish's Second Sunday Soup kitchen. I did manage to check into the St. Max Net on 80 Meters at 0000 UTC, but the QRN was horrific! The net usually lasts for a half hour to 45 minutes. It was over by 00:15 UTC last night.

Tonight, SPARC members who are also CERT members are going to show up at the monthly Boro Council Meeting. One of the Office of Emergency Management deputies is being promoted from sergeant to lieutenant and we want to congratulate him and show him our support.

72 de Larry W2LJ

QRP - When you care to send the very least! 

There are things you take for granted in life - and other things that you shouldn't. One of the things that I've taken for granted, and I guess I shouldn't have, is for the definition of what power level is QRP - amongst QRPers. I can understand varying answers from the QRO crowd. In e-mails and articles from the general Amateur Radio community, I've seen the high power aficionados bandy about all kinds of power levels that define what QRP is - all the way from 500 Watts (I know, kind of ridiculous) to 5 Watts and anywhere in between. But you would think that those of us who dabble at the low end of that range would agree on what the definition of QRP is.

We don't. That kind of surprises me.

There was a discussion on the QRP-L reflector that started up yesterday, entitled "What is QRP?" I mistakenly thought the answer was pretty clear and that the e-mail thread would sputter out quickly. I was wrong. If you partake of any of the QRP groups on Facebook, you see this ALL the time there, as well. Again, one would think QRPers would have our act together and be in agreement. Not so, Grasshopper, not so.

Many (or even most) define QRP as I do - 5 Watts for CW and the digital modes, 10 Watts PEP for phone, and of course, any power level below those. But there were other responses as well. Some argued for 5 Watts regardless of mode. Some wanted the definition changed to 10 Watts regardless of mode. Some of the hardest die-hards would like to see QRP defined as 1 Watt or below, I would imagine.

Reflecting on this debate, I realized I shouldn't have been surprised at all. The definition of QRP has never been written in stone and is actually somewhat fluid. Back when I joined QRP-ARCI in 1980, the definition for QRP was 100 Watts or below.