Tag Archives: Conrad (N2YCH)

Antennas, Digital Modes, Field Reports, FT8, Guest Posts, News, Portable, POTA, QRP

N2YCH’s Top Band POTA Activation Field Report

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Many thanks to Conrad (N2YCH) who shares the following field report:

Top Band POTA Activation Field Report

By: Conrad Trautmann (N2YCH)

November 15, 2023

In February 2023, Brian, K3ES, wrote here on QRPer.com about designing and building his own QRP portable random wire antenna he called the VK160 to work on 160 meters to make parks on the air contacts. This was in order to achieve his goal of getting the James F. LaPorta N1CC award where activating on 10 bands at 10 parks is needed. It’s not as easy as it sounds. As an avid parks on the air activator myself wanting to try activating on 160 meters, I built my own antenna based on Brian’s design and used it to get my first contacts ever at a park on the “Top Band.”

The Antenna

Brian used a 9:1 unun that he built himself in his design. Rather than build my own from scratch, I took a short cut and bought a QRPGuys 40m-10m UnUnTenna to use as the starting point for my VK160. Even though it says 40m-10m, it works on 160 meters, as you’ll see.

With shipping, it cost $36.00. It comes with all of the parts you need to assemble the antenna except for the wire. The main thing I liked about the QRPguys design was that the circuit board also doubles as a wire winder, so it’s all self-contained.

I sourced the wire from Davis RF and ordered 200’ of “POLY STEALTH – 26 AWG, 19 0.22000 44.00 STRAND COPPER CLAD STEEL, BLACK PE JACKET.” It cost $50 including shipping. The polyethylene insulation prevents the wire from knotting up. I measured out 144’ for the radiator based on Brian’s design and used the remaining wire as the counterpoise.

The completed antenna

I did a back yard test once it was all assembled and it worked great. For $86, I had created my own VK160. I encourage you to read Brian’s detailed design/build report here.

The POTA Activation – November 14, 2023

Now that I had completed building and testing the antenna, the next challenge was how to actually put it to use at a park. 160 meters doesn’t really come to life until dusk or after dark. In Connecticut, most state parks close at dusk. The park rangers clear the parks to close them at the best time to activate the band. However, there is one park nearby my QTH, the Stuart B. McKinney National Wildlife Refuge, K-0228, that has an annex called the Great Meadows Unit in Stratford with a nice parking lot that is not gated and has no posted hours. I arrived and set up at sunset, around 4:30 pm ET and operated from 5 pm until 6 pm. It gets dark here early in the Northeast US in November.

Another challenge is how to manage and string up 144’ of wire. Brian suggested an inverted V over a tree branch in his write up. There were no trees nearby, so instead I used a Spiderbeam fiberglass pole secured to my Jeep to get the feed point up in the air about 25 feet. I used RG58 cable from the feed point to the radio.

Spiderbeam fiberglass pole supporting VK160

Finally, I used one of my $3.00 Home Depot electric fence posts to secure the far end to keep it tight and up in the air and set up the antenna as a sloper. I laid out the counterpoise on the ground under the sloping wire.

By the time I had all of this set up, it was getting dark. I connected my Elecraft KX3 to the other end of the RG58 cable and to my surprise and delight, I was already receiving stations.

My KX3 has a built-in ATU and one tap of that ATU button and it tuned to 1.0:1. I started the activation right at 5 pm local time and in about 15 minutes, I had six QSO’s on 160 meters.

The PSK Reporter map showed me being received by stations on the dark side of the gray line in the Northeast. It was pretty much what I expected for QRP power on the low frequency. Then, the next ten minutes things were quiet. It appeared I had gotten everyone who could hear me.

Since this is a random wire antenna, it should work on all bands so I decided to test it on 80 meters. Again, the KX3 tuned right up and I got six more QSO’s. I was surprised to see Del, N2NWK from Washington, DC pop up on JT Alert. I have a an alert set for stations calling CQ POTA. Del was also at a park. I called and he answered and we ended up with a park to park. Anyone who knows Del knows that when you hunt him, he’s usually activating at a two-fer, at least. When I checked my hunter log afterwards, I saw four parks listed from him (a four-fer?).

At this point in the activation, I had gotten the ten QSO’s that I needed to call the park activated. I thought, let me try the VK160 on 60 meters. I re-tuned the KX3 and got five more fast QSO’s. The antenna worked great.

Before I packed up, I decided that I really wanted at least ten contacts on 160 meters, which was my original goal. I went back to 160 meters, now close to an hour later than when I began the activation, and easily added five more new QSO’s to the log. Maybe propagation had changed the later/darker it got or some new hams were on the band who weren’t on earlier, but I was satisfied to have gotten more than 10 on the top band.

The Results

Here’s how I did. Green pins are QSO’s on 160 meters, blue pins are 80 meters and the pink ones are 60 meters (click image to enlarge).

Equipment List

Conclusion

The “Top Band” activation was a success! The VK160 worked flawlessly, thank you Brian, K3ES for posting your design and providing the inspiration to activate on 160 meters.

My POTA “My Stats” page now shows 11 digital QSOs on 160 meters that I didn’t have before. I love conquering new challenges and given the challenge of going mobile with an antenna that will actually work and tune up on that low of a frequency at a park that won’t make you leave at sunset, well… that was quite an accomplishment!

Thank you to the 22 hunters (11 on 160 meters) who helped make it a success, including my friend Del, N2NWK in Washington, DC.

Conrad, N2YCH and Del, N2NWK
Digital Modes, Field Reports, FT8, Guest Posts, News, Portable, POTA, QRP

Conrad’s Kayak POTA Activation on Minnie Island

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Minnie Island K-1698 Kayak Activation

by Conrad (N2YCH)

9/1/2023

As many readers know, I am on a Parks on the Air (POTA) quest to activate all references in the state of Connecticut. There are 136 parks, and four of them are only accessible by boat. You may have seen my recent field report here on QRPer.com about activating three islands located in the Connecticut River. For those islands, I enlisted professional help from a boat captain with the navigation experience and proper tools (like radar and maps) to access those islands.

The final boat-only accessible island is Minnie Island, located in the middle of Gardner Lake in the town of Salem, Connecticut. I DO have experience kayaking on a Lake, thanks to my uncle, who has two kayaks and has taken me out on Tillson Lake in New York’s Hudson Valley a number of times. Unlike the challenges the river posed, I felt like I could manage the lake on my own. I did need a kayak, though, which I didn’t own.

I had to do some kayak research then. In case you didn’t know this, different kayaks have different specifications on how much weight they can hold. I’m a big guy, six foot five inches tall. Add me, plus a backpack of radio equipment, and I needed to be sure I didn’t sink.

I started on eBay, looking for people selling used kayaks. There are all different kinds of kayaks. Some made for the ocean and dealing with waves and others for casual lake paddler. Some have rudders, some have small, sealed cockpits and some even have motors. I had no idea how serious you could get with all of the accessories and options. I was really looking for something simple.

After striking out on eBay, I found a fishing supply store at the end of the Connecticut River that also had kayaks you could rent. I visited their web site and was happy to see that they were having an end of season clearance sale, where they were selling their rentals. I visited their shop and after looking at my options, I ended up buying an Old Town Vapor 10 kayak. It came with a paddle and life jacket and it was 50% of the price new. A great bargain. The added benefit is now I own my own kayak…a friend suggested that now that I do, there might be IOTA activations in my future.

What sold me on the Vapor 10 was the open cockpit. No trying to squeeze myself in and plenty of room to bring a backpack with the radio equipment in-between my legs. Also, I was able to fit it into my Jeep Wrangler.

Next stop, the Gardner Lake Boat Launch, which was about a 30 minute drive North. Continue reading Conrad’s Kayak POTA Activation on Minnie Island →

Field Reports, Guest Posts, News, Portable, QRP

POTA Quest: Conrad Activates Three Connecticut River Islands!

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Connecticut River Island Activations

by Conrad (N2YCH)

August 22, 2023

I’m on a POTA quest – activate all references in the state of Connecticut. There are 136 parks in the state and four of them are islands, only accessible by boat. Three of which are in the Connecticut River: Dart Island (K-1659), Haddam Island (K-1673) and Selden Neck State Park (K-1714).

I don’t own a boat. Plus, even if I did, I’m not sure I’d be brave enough to tackle the Connecticut River on my own. I have no experience navigating these waters, and it’s a real river, more than you’d want to try with a kayak with the currents and all. Even the POTA web pages for these islands warns “Boating experience and channel knowledge recommended.”

This created a dilemma –  how do I get to and activate these islands?

I strategized for a while and decided on chartering a “river cruise” boat who actually listed visiting Dart and Haddam islands as part of their services on their web site. The boat captain hadn’t visited Selden Neck, so that was new, even to him. However, he had a radar, and depth finder on his boat that mapped the channel and gave us the depths of the waters near each island. His boat drew 3 feet, so we had to have at least that much depth in each place we stopped. He also had a small “Achilles” boat that connected to the back of the cabin cruiser that we used to get ashore.

We left from a marina that was directly across the river from Dart Island but decided first to head South to Selden Neck and then work our way back North to Haddam and Dart.

Putting aside the island access for a moment, I also had to strategize on what gear to bring along to do these activations. I am primarily a digital mode activator and have used the Elecraft KX3 and AX1 antenna in many of my travels where I needed a light kit.

However, I thought, I can use the KX3 but take along a more efficient antenna. I used my Buddipole tripod and mast with a versa-T and a 17’ 9” Alpha whip antenna and a 15’ counterpoise elevated off the ground with a Home Depot electric fence post.

Because the mast elevates the versa T to 11’ high, and the telescoping whip at another 17’ 9”, I was able to get the antenna nearly 30’ off the ground to the top. It was easy to pack and carry and provided better coverage than the AX1 would have. You’ll see just how good QRP on FT8 can be in my Dart Island coverage map.

Equipment List:

Once I decided on the KX3 and the Alpha telescoping whip, I packed my backpack with the computer, cables, the radio, batteries and extra antennas. I always have the AX1 and a Packtenna EFHW as backups and they fit easily into the backpack. Two bags would need to make it from the boat to each island, the radio gear with computer and the antenna bag with the tripod and telescoping antenna. To be safe, since it would not be easy to do this again if something didn’t work, I brought along an entire backup system, packed in a second backpack with an Icom 705 and my spare laptop.

One of my goals with POTA is local discovery, and my boat captain was very knowledgeable about the river and the various sites along the shores. I learned that a manufacturing plant owned by Pratt and Whitney still uses water from the river as part of their manufacturing processes and also that there was a sea plane airport along one bank. I saw an automobile ferry along the way that I had no idea existed and saw the site of the former Connecticut Yankee nuclear plant that was decommissioned in 2004. Continue reading POTA Quest: Conrad Activates Three Connecticut River Islands! →

Digital Modes, Field Reports, FT8, News, Portable, POTA, QRP, SSB

Part 3: N2YCH and K1PCN’s Dayton Hamvention Trip QRP POTA Rove

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Many thanks to Conrad (N2YCH) who shares the first of a three-part field report series outlining his 2023 Hamvention rove with Peter (K1PCN). Click here for Part 1 and Part 2.

Part 3: Dayton Hamvention Trip QRP POTA Rove

By Conrad Trautmann, N2YCH

The Bonus State

Welcome to part three of a three-part POTA rove story where Peter, K1PCN and I decided to activate six state parks for our Parks on the Air Activated States Award on the drive to the Dayton Hamvention.

In installments one and two we activated Delaware, Maryland, West Virgina, Pennsylvania, Ohio and Indiana. I thought we had exhausted all our state activating possibilities for this trip, until…Peter said, “you know, Kentucky is not that far away. And, by the way, there is a park down there that has never been activated digitally…”

Really? I’m in.

We decided that on day two of the Hamvention, we would leave in the afternoon and make our way to Kentucky, which was just over an hour away. While we were standing on the line to get into the Hamvention on Saturday morning, one of the people near us mentioned that the Voice of America Museum was open until 9pm that night and he was considering going.

I stopped at the VOA booth in the Hamvention and picked up a brochure and on our way to Kentucky, Peter suggested that maybe on the way back, we stop in.

Kentucky

Our best bet for a Kentucky POTA activation, which was recommended by a fellow digital activator at the South West Ohio DX association dinner we attended the night before, was Big Bone Lick State Historic Site (K-3779).  According to the Internet, it was named Big Bone Lick because of the “mammoth artifacts that were found and because of the salt springs that animals drank.” I found that it was impossible to tell anyone the name of the park without a smirk or chuckle in return.

When we arrived in Kentucky, we drove around Big Bone Lick park looking for a place to activate. Apparently, there are buffalo at the park…however, we did not activate near the buffalo. We found an unused picnic area and split up.

Literally about five minutes after I set up and got on the air, a group of moms with five-year-olds celebrating one of their birthday’s showed up. One of the mom’s apologized and explained that I had found her secret place in the park…but by then, I had almost completed my activation and was ready to break down.

I don’t mind it when people come up and ask about what I am doing, I’m always happy to explain ham radio to anyone who’s curious. Activating a park surrounded by a group of five-year-olds was a new experience that I hope to never repeat. Here is a photo of my setup at Big Bone Lick.

Given that it was later in the day by the time we arrived, Peter chose 40 meters, and I took 20 meters. 22 QSO’s later, here’s my coverage using the Buddipole with the 17’ MFJ whip and the Elecraft KX3 at 10 watts.

VOA

On our way back, Peter called the VOA museum to confirm they would be open late that night and then that became our next destination since we had to pass right by on our way back to Dayton. Continue reading Part 3: N2YCH and K1PCN’s Dayton Hamvention Trip QRP POTA Rove →

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Part 2: N2YCH and K1PCN’s Dayton Hamvention Trip QRP POTA Rove

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Many thanks to Conrad (N2YCH) who shares the first of a three-part field report series outlining his 2023 Hamvention rove with Peter (K1PCN). Click here for Part 1, and look for Part 3 next week!

Part 2: Dayton Hamvention Trip QRP POTA Rove

By Conrad Trautmann, N2YCH

Pennsylvania

Welcome to part two of three of the Hamvention QRP POTA Rove. If you missed part one, you can find that installment here.

Early on Thursday morning, May 18, 2023, Peter, K1PCN and I headed from Morgantown, West Virginia north to Pennsylvania to activate K-8920, the PA 223, Pennsylvania State Game Lands. While the park covered a large geographical area, we were able to find a parking lot not far off the highway that made it easy for us to get to and activate.

Peter spotted a nearby gazebo which was also a viewing area and hiked over to it to activate. If you look closely in the photo below, you can see it in the distance behind the sign and my antenna.  I stayed with the Jeep and set up on the tailgate using the Buddipole vertical.

Since it was early in the day, we used our frequency strategy of Peter on 40 meters and me on 20 meters. My QSO map here shows some decent DX for QRP on 20 meters at 8am ET.

Ohio

We traveled North towards Pittsburgh on Interstate 79 and then West on Interstate 70, passing through West Virginia again and then stopped at K-1934, Barkcamp State Park in Ohio.

I tuned my antenna for 17 meters and Peter activated on 20 meters.

I managed to activate the park, but it was slow going for me on 17, so when Peter finished up on 20, I changed to 20 meters and got a few more on that band just for good measure. Thinking that the slow QSO’s could have been the radio, I did switch to the IC-705 here, but that did not make any difference. It could have been conditions or our location. I did have better luck on 20 meters than 17. And I don’t know about you, but I can never go for just ten QSO’s. I feel like I need a few extra ones just in case. Here is a photo of me set up at a picnic table next to my antenna. Continue reading Part 2: N2YCH and K1PCN’s Dayton Hamvention Trip QRP POTA Rove →

Digital Modes, Field Reports, FT8, Hams, News, Portable, POTA, SSB

Part 1: N2YCH and K1PCN’s Dayton Hamvention Trip QRP POTA Rove

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Many thanks to Conrad (N2YCH) who shares the first of a three-part field report series outlining his 2023 Hamvention rove with Peter (K1PCN). Look for Part 2 next week!

Part 1: Dayton Hamvention Trip QRP POTA Rove

By Conrad Trautmann, N2YCH

Peter, K1PCN and I are both avid Parks On The Air activators here in Connecticut and neither of us has ever been to the Dayton Hamvention in Xenia, Ohio. At the urging of others who have attended in the past, we made the decision to attend this year and while we were making the trek out, we wanted to activate parks along the way to add to our activated US states award. We originally planned to activate six states and ended up with one bonus state for a total of seven. This is how things looked before and after the trip.

 

I would like to begin by saying that attending the Hamvention was a great experience. If you have not been to it, I would like to encourage you to attend if you can.

You may have heard about the flea market, the vendor booths, the forum sessions or the food trucks, which are all good, but the best part for me was being in the presence of other hams with similar interests. I struck up conversations and shared stories with many other hams. Everyone was very nice and willing to share their experiences, which is a great way to pick up some good tips.

I am extremely glad I went. If you are on the fence about going, I would recommend you plan to go next year. Oh, and I got to meet this guy in person….

Now on to the rove…

I planned the trip to get as many states as possible. Both Peter and I had already activated CT, NY and NJ, so we did not need to stop in those states as we passed through. I had scoped out some parks near the Delaware and Maryland border, so I looked at those first.

My main criteria on park selection was to pick parks that would be easy-off/easy-on to the main highways we would be traveling to save time on driving. Here is the route map we followed.

We strategized on how we would activate the parks when we got to each one. Peter is an SSB activator, and I am a digital activator. We would not be colliding on the mode of operation. We did need to be on different frequencies though.

In the mornings, Peter took 40 meters and I used 20 meters. Later in the day when the bands opened up, Peter moved up to 20 meters and I bumped up to 17 or 15 meters. Using this strategy, we had no problems getting our minimum ten QSO’s to activate while operating at the same time. Peter also reminded me to bring a handheld and we did park to park QSO’s on 2 meters and 70cm.

As for equipment, I used my Elecraft KX3 transceiver, but I did bring an IC-705 as a backup.

On the first stop in Delaware, I used an Elecraft AX1 antenna but for the rest of the trip I used a Buddipole tripod equipped with a Versa-T with a 17’ MFJ whip tuned to the frequency I was operating on with 50’ cable and an above the ground counterpoise. Continue reading Part 1: N2YCH and K1PCN’s Dayton Hamvention Trip QRP POTA Rove →

Digital Modes, Field Reports, Guest Posts, News, POTA, QRP

N2YCH’s “Fly-Away Kit” QRP POTA Activation

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Many thanks to Conrad (N2YCH) who shares the following field report:

“Fly-Away Kit” QRP POTA Activation

by Conrad Trautmann, N2YCH

4/15/2023

The National Association of Broadcasters convention is an annual event that takes place every April at the Las Vegas Convention Center in Las Vegas, Nevada. This year, I traveled to the show for work and made some time to activate a park and get another state ticked off my “Activated US States” list. I also didn’t want to miss getting the Spring 2023 Support Your Parks Weekend activator award.

A colleague suggested I visit Red Rock Canyon National Conservation Area, K-7494. The park, which is operated by the US Bureau of Land Management, has a 13 mile scenic drive that has various parking areas you can stop at to get out and explore. Red Rock requires a reservation to visit and costs $20 to enter the scenic drive area. There are places within the park you could activate for free, but I took advantage of my military veteran benefit of free admission and drove the trail and activated at one of the scenic overlooks.

Before I traveled, I had to decide what radio and antenna to bring. I selected the Elecraft KX3 and the AX-1 antenna. Not having to check a bag was key to deciding what to take.

I packed the cables, battery and computer in my brief case and the radio and the AX-1 antenna went into my carry-on bag. I did get pulled out of line by the TSA at JFK airport, but the TSA agent was very nice and just asked a few questions and let me through with no issues.

Before I traveled, I took a look at the park page on the pota.app website and saw that Colin, AK7LV, was the park leader in QSO’s. I looked him up on qrz.com and sent an email asking if he had any good advice for me or could give me some pointers. He responded quickly with suggestions of his favorite locations, how to get to them and even a suggested location where I could pick up a twofer at a trail that crossed through the park. He said I should call him when I get into town. Continue reading N2YCH’s “Fly-Away Kit” QRP POTA Activation →

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Elecraft AX1 Test Using American Radio Supply AM-801 Window Mount

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Many thanks to Conrad (N2YCH) who shares the following field report:

AX1 Test using American Radio Supply AM-801 Window Mount: POTA Activation at Stuart B. McKinney Wildlife Refuge, K-0228

February 19, 2023

By: Conrad Trautmann (N2YCH)

If you’ve been reading the posts here on QRPer.com lately, you probably already know that the Elecraft AX1 has proven to be an excellent antenna for POTA activations for CW, SSB and Digital modes.

Personally, I used it for a New York City POTA rove I did at the end of 2022 and was able to activate four parks in one day all over Manhattan.

Recently, Alan, W2AEW contributed a story to QRPer.com detailing how he used a window bracket he constructed with an AX1 to do a CW park activation from his car. I’ve actually done a few digital activations from the car using the AX1, however, I used the tripod with the Elecraft tripod adapter and ran coax to it out the window and draped the counterpoise down the hood or trunk. This has worked well except for windy days where it would blow over. I was intrigued by the possibility of using the window mount and a number of the commenters to Alan’s post suggested sources for these types of mounts. I ended up ordering an AM-801 from American Radio Supply.

https://www.americanradiosupply.com/am-801-window-antenna-mount-bnc-connectors/

Since the AX1 depends on a counterpoise wire to operate properly, the first thing I did after receiving the AM-801 mount was to drill a hole in the base for a screw and a wing nut. The base is painted black, so I got my continuity meter out to double check that the screw was making a good ground, which it was. I had to bend the mount up slightly for the antenna to be vertical, since my Jeep windows don’t have much of an angle to them. I’m sure it would be just right for most cars.

My next step was to give it a try. Continue reading Elecraft AX1 Test Using American Radio Supply AM-801 Window Mount →

Antennas, Digital Modes, Field Reports, FT8, Guest Posts, News, Portable, QRP

MINI Portable: Conrad’s POTA field report from Stuart B. McKinney National Wildlife Refuge

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Many thanks to Conrad (N2YCH) who shares the following field report:

Field Report :POTA Activation K-0228, Stuart B. McKinney National Wildlife Refuge, Great Meadows Unit

by Conrad (N2YCH)

January 21, 2023

Parks On the Air’s Support Your Parks weekend event for winter 2023 is the third full weekend in January and I found myself without my Jeep. I sold my ten-year-old Jeep Wrangler and my new Jeep wasn’t due to be delivered until the following week, leaving me without my “POTA activation vehicle”. I ended up borrowing my XYL’s MINI Countryman to activate K-0228, but let’s face it, a MINI is not a Jeep. It didn’t have all of my “stuff” in it. I needed to get creative about what to bring along with me that would fit easily in the MINI, yet work well enough to activate the park.

I started with my backpack kit which contains an Elecraft KX3, battery, Signalink and computer (for FT8 and logging).

It includes everything I need to transmit and it’s easy to toss in the car. I just needed to decide on what antenna to use. Since it’s winter here in Connecticut and pretty cold outside, this would be an “in-the-car” activation and without the Jeep, my antenna options were limited. I could have brought my Sotabeams Tac-Mini which could fly my PackTenna EFHW up about 20’. However, anchoring the mast would be a challenge in the cold weather. In the end, I decided to bring my Buddipole tripod and nested mast, which are compact and fit in a small bag which fit right in the passenger seat. Continue reading MINI Portable: Conrad’s POTA field report from Stuart B. McKinney National Wildlife Refuge →

Digital Modes, Field Reports, FT4, FT8, Guest Posts, News, Portable, POTA, QRP, QRP Radios, Reviews

Guest Post: A QRP Labs QDX POTA Field Portable Report

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(Photo: QRP Labs)

Many thanks to Conrad (N2YCH) who shares the following field report:

QRP-Labs QDX Field Report

K-1716, Silver Sands State Park, Milford, Connecticut

January 13, 2023

By: Conrad Trautmann, N2YCH

A digital mode multiband transceiver for $69? Yes! QRP Labs has the QDX kit available for $69 US. Add $20 if you would like a very nice black anodized aluminum case to mount it in and if you want it assembled and tested add another $45. Visit the QRP Labs web site for all of the details (QDX 4-band 5W Digi transceiver (qrp-labs.com)

How well can a $69 digital transceiver work? Read on…

I ordered my QDX kit back in May 2022. It arrived in June, I assembled it and ran some tests at home. It worked well on FT8 into my home antennas. It interfaces nicely with WSJT-X and I liked the idea of using a low power transceiver to band hop on WSPR. My QDX is an early four band version, which does 20, 30, 40 & 80 meters. I set it to band hop on all four bands not remembering that my multiband offset center fed dipole is not resonant on 30 meters. Since the QDX does not have a tuner, it didn’t like the higher reflected power of a two minute long WSPR transmission into a bad load and smoke resulted. I was fortunate that the failure was isolated to the RF power amplifier transistors and replacing those got me running again. This was my own fault, not the transceiver. Now, it band hops on 20, 40 and 80 meters with no issues, I eliminated 30 meters from the hop schedule.

I share this important story at the beginning of my field report as a warning to anyone considering using a QDX to be very careful when connecting an antenna to it. Since the QDX does not have an internal antenna tuner, you either need a resonant antenna or must use an external tuner to provide a 50 ohm load with low SWR to the QDX. The QRP Labs groups.io site has a number of posts from users with different tuner suggestions.

Now comes the fun part. I visited Silver Sands State Park, K-1716, located on Long Island sound in Milford, CT on January 13, 2023 in the afternoon. While it was Friday the 13th, I had nothing but good luck. Knowing I would be running QRP power, I decided to use what I consider to be my best 20 meter antenna. It’s a modified version of a Buddipole, which I call my “no coil” Buddipole dipole. I use a Buddipole VersaTee mounted to a WILL-BURT Hurry Up mast, which is a push up mast that extends to about 25’ high. The dipole consists of two Buddipole 32” accessory arms, one for each side of the VersaTee and two MFJ 17’ telescoping whips, extended to just about 17.5’. This provides a very broad bandwidth and low SWR on 20 meters. See the screen shot of my antenna sweep from the RigExpert analyzer below.

Here’s a photo of the antenna in the air.

The temperature on this January day was a mild 55 degrees so I was able to set up my equipment in the back of my Jeep. Here’s everything I needed to do the activation. Since the antenna is resonant, I did not use a tuner.

My iPhone gives you an idea of just how big the QDX is, which is sitting just to the right of it. There are only three connections needed, the antenna cable, a 12V power cable and the USB cable. I was using my Bioenno 9ah battery for power. I brought the Bird Model 43 with a 25 watt element in it to monitor the output power and also to measure the reflected power, which barely even nudged the meter. It was effectively zero watts reflected. In the photo above, I was in a transmit cycle and you can see the power meter just a touch above 5 watts. On the computer, you can see a mini pile-up of six hunters in the queue. One thing to note about the QDX is that you can’t adjust the power by lowering the PWR slider in WSJT-X. It’s recommended to leave that at maximum. The way to adjust output power is to adjust the power supply voltage. In this case, the Bioenno had a full charge, so the radio was running full power.

I began the activation without spotting myself, just to see who’d hear me. Here’s a map of the pskreporter showing my spots.

I eventually spotted myself so hunters would know what park I was at. I was amazed that during my activation, I never ran dry or had to call CQ POTA, there was a steady stream of hunters the entire time. The QDX does a fine job receiving, here’s a screenshot of WSJT-X including the waterfall to show what it was receiving.

So, how did the $69 radio do? In a one hour and 17 minute activation, I completed 46 FT8 QSO’s. Here’s my coverage map.

I managed to complete three park to park QSO’s, too. One park called me and I called the other two who heard me and answered. I use JTAlert which helps me keep track of the order of who called. I always try to answer the hunters in the order they called me. I’ve set up a Directed CQ alert in JTAlert for anyone calling “CQ POTA” which helps me to see who else is at a park while I’m activating. If I’m able to contact them, I use the POTA spot list to include their park number in the SIG_INFO field of my log, which is N3FJP. N3FJP is handy to use since I start a new log for each activation and I’ve configured it to upload to LOTW and QRZ when I’m done for the day.

Another thing worth noting is that there is no speaker on the QDX. I’m one of those digital operators who actually listens to the cycles while I’m on the air. It provides a certain cadence to hear each cycle go by so you know what to be looking at or clicking on and when. With no sound coming out of the QDX, it forces you to find that cadence by looking at the computer screen. For me, it means watching the receive audio levels and the progress bar to see if I’m transmitting or receiving. The QDX does have a single red LED on the front panel that will flash during transmit cycles, which is also a helpful indicator.

I’d say the results shown here speak for themselves. I had a steady stream of hunters, I had just one or two QSO’s that needed a second RR73 to confirm and the coverage was as good as most activations I’ve done with more expensive radios and more power. Despite the self-inflicted hiccup I experienced at the beginning, I’d say that If you’re looking to try activating digital for Parks On The Air or even for your home, the QDX certainly works very well and provides a lot of value for the money.