Tag Archives: QRP

Field Reports, Morse Code, News, Portable, POTA, QRP, Videos

Pairing the Elecraft KH1 and my Tufteln No-Transformer (aka, Speaker Wire) Antenna

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On Thursday, November 30, 2023 I had a chunk of afternoon open to fit in some Parks On The Air time. My travels took me near one of my favorite local parks: the Zebulon Vance Birthplace Historic Site (K-6856).

As I packed my car that morning, I brought along some of my Mountain Topper transceivers as well. The plan was to first shoot a video comping the new Elecraft KH1 to these venerable SOTA machines, then do a POTA activation with the KH1 and a new-to-me kit antenna.

The Mountain Topper comparison took a bit longer than I had anticipated (surprise, surprise) so my POTA time was actually somewhat limited. If interested, my KH1/Mountain Topper comparison was posted several weeks ago–click here to check it out.

Tufteln No-Transformer EFRW

One goal of my afternoon activation was to finally put my new-to-me Tufteln “No-Transformer” end-fed random wire antenna on the air.

You might recall that I shared a campsite–during the W4 SOTA campout last year–with good friend Joshua (N5FY) of Tufteln fame and fortune. Being the antenna guy he is, Joshua brought along a full antenna building station and set it up on our picnic table. That first afternoon at camp, he gave me a kit to build this random wire antenna. Thanks again, OM!
These “No-Transformer” random wire antennas are designed to be paired with a good ATU–either external or internal. This type of antenna couldn’t be more simple.

Since there’s no transformer (no 9:1, etc.) the ATU does all of the heavy lifting to make a match. While this might not seem like an efficient way of doing things, one benefit of this design is that there’s no feed line: the radiator and counterpoise connect directly to the radio if your radio has a built-in ATU.  I’ve found that there’s some inherent efficiency in this approach.

Just two wires (radiator and counterpoise) connected directly to a BNC with a little strain relief.

The antenna is identical to the speaker wire antenna I built in the field and have used so extensively over the past few years. Joshua’s design is just much lower-profile and more compact.

When I built this particular antenna, I decided to go for a much longer length than any other random wire I’ve made to date. The idea was to have an antenna that might possibly match 80M. Joshua might correct me, but I believe we cut something between 70-80 feet for the radiator.

At Vance, I deployed this antenna into some short evergreens that surround the picnic shelter. It wasn’t an ideal deployment, per se, but adequate for a quickie activation!

I’ve learned that the length I chose for this radiator isn’t ideal for most of my ATUs to hit some bands. I will end up trimming this antenna a bit until I find the right length. I’m tempted to shorten it for matching on 60 meters, then build another 9:1 random wire to hit 80 and possibly 160 meters.

Setting up the KH1 took no time at all. I did discover during this activation that I needed to better secure the KH1 to the table. Wind gusts were tugging on the random wire a bit (as the trees swayed) and it would move the KH1 around on the table. The KH1 weighs less than a pound, so it’s super lightweight! This will be easy to fix next time.

Gear:

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On The Air

I tuned the EFRW antenna on 30M and got a perfect impedance match.

I started calling CQ POTA and hunters replied!

In fact, I worked ten stations in exactly ten minutes. Two of them were Park-To-Parks–thanks KD8IE and KC3WPW!

I worked two more stations for a total of only twelve logged. I would like to have spent more time on the air, but I had two appointments on my schedule that afternoon.

QSO Map

Here’s what this five watt activation looked like when plotted out on a QSO Map:

Activation Video

Here’s my real-time, real-life video of the entire activation.  As with all of my videos, I don’t edit out any parts of the on-air activation time. In addition, I have monetization turned off on YouTube, although that doesn’t stop them from inserting ads before and after my videos.

Note that Patreon supporters can watch and even download this video 100% ad-free through Vimeo on my Patreon page:

Click here to view on YouTube.

Thank you!

Thank you for joining me on this short activation!

Had I realized how low I was running on time at the beginning of this activation, I might have made the antenna deployment and my commentary a bit briefer to have more air time. That said, I don’t do POTA for the numbers, I do it because it’s amazing fun and such a positive part of my day. This little activation was no exception! Pure radio fun.

I hope you enjoyed this field report and my activation video as much as I enjoyed creating them.

Of course, I’d also like to send a special thanks to those of you who have been supporting the site and channel through Patreon and the Coffee Fund. While certainly not a requirement as my content will always be free, I really appreciate the support.

As I mentioned before, the Patreon platform connected to Vimeo make it possible for me to share videos that are not only 100% ad-free, but also downloadable for offline viewing. The Vimeo account also serves as a third backup for my video files.

Thanks for spending part of your day with me!

Have a brilliant weekend, friends!

Cheers & 72,

Thomas (K4SWL)

Field Reports, Guest Posts, News, Portable, POTA, QRP

Brian Activates Allegheny National Forest and Remembers a Dear Friend

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Many thanks to Brian (K3ES) who shares the following guest post:

Activation at Allegheny National Forest:  Remembering a Friend

by Brian (K3ES)

The last few weeks have been rough for the K3ES household.  In past activation reports, I introduced you to our two Boston Terriers.  Molly and Jojo came to us as rescue dogs in October 2022, and we have worked hard to help them feel safe and loved.  Unfortunately, both came to us with unexpected health problems.  We were able to get Molly through treatment for heartworm, and she is thriving.  Jojo always had something holding her back, but we were never quite sure what.  We lost her just before Christmas, and that was a real punch in the gut.

Jojo was a special dog.  When we brought her home, she barely weighed 15 pounds.  Even after we managed to build her weight up to 25 pounds, she was still thin for her frame.  She also came to us hunched, cowering, and emotionally traumatized.  It took months for her to start coming out of her shell.  We got glimpses of her as a feisty, and loving dog, who took real joy from laying in the sunshine.  We were hopeful that she would one day come into her own, and give our jubilant Molly a real run for her money.  Sadly, it was not to be.  She had increasing problems with mobility.  We treated her for a bone infection, for possible tick-borne disease, and for joint inflammation.  Steroids and pain medication helped her quality of life a lot.  It was only near the end that the likely culprit was identified as cancer, but even expensive diagnostic tests failed to confirm that.  Finally, her body just crashed, and we had to let her go…

Jojo supervises a truck activation of Allegheny National Forest in March 2023.

Looking back through pictures of Jojo, I discovered some that were taken during a never-reported “truck activation” of Allegheny National Forest (K-0619) back in March, 2023.

I have never thought that my vehicle-based activations were terribly interesting, so I never spent the time to report them.  Suddenly, that particular activation held new meaning, because one of the few times I got Jojo out with me for a POTA activation happened because I was doing a low-impact drive-up, working from the truck.  She rode shotgun, and sat happily in the passenger seat while I made contacts.  Molly sat in the back seat, napping from time to time.  After the radio gear was packed away, the three of us even managed to take a short trail walk along a Forest Service Road that starts at the parking area.

Jojo and Molly lead the way on the Forest Service Road after the radio gear was packed away.

Last week, I found myself in serious need of radio-therapy.  Since Molly is always ready to go for a ride and a POTA, I decided to take her along to re-create the prior activation that we did with Jojo.  So this is the story of our salute to a departed friend, a tribute activation, as it were.

Activation

Molly and I packed her blanket, picked up my KX2 field kit, and jumped in the truck for a 20 minute drive to the trail-head parking area that we had activated with Jojo last March.  It has trees, a decent driving and walking surface that would not be too muddy from recent rain, and the Forest Service road where we had walked after the previous activation.  This time, Molly rode in the passenger seat, alternating between napping, and looking at the scenery as we drove.  Upon arrival she stayed put, while I used a throw line to put up my Tufteln 35 ft EFRW as a sloper.  I hooked the unun around my 2 meter mobile antenna, and ran coax into the truck through the lower part of the driver-side door seal.  I set up the KX2 on the center console/armrest, prepared my log, and got on the air to start the activation.

Tufteln 9:1 unun was clipped to my 2m mobile antenna, with the 35 ft radiator sloping up to a tree, the 17 ft counterpoise dropping down to the ground, and the RG316 feedline leading into the truck.

Results

As with almost all of my activations, I ran this one entirely CW QRP.  Beginning just after 1900z (2 pm local), I decided to start on 15m and work my way down the bands.  The HF bands were in good shape, and 15m netted 2 quick contacts, then 17m yielded 6 more.  The pace picked up when I moved to 20m (12 contacts in 22 minutes), and got even faster on 30m (17 contacts in 19 minutes, before it was time to call QRT).  While I was on the air, Molly did some supervising and some super snoozing.

Molly is an interested supervisor…
But supervising is tiring work.

Working steadily for an hour and a quarter, and finishing with 37 contacts was just the kind of break that I needed.  I want to sincerely thank the hunters who made this activation a success.  For just a short while, I was focused on CW, call signs, and signal reports, and the sense of loss receded a bit from my consciousness.

A map of 37 contacts on 4 bands.

Equipment

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Molly and I walked along the Forest Service Road.  We felt incomplete…

Conclusion

After I packed up the station, Molly and I repeated our walk along the Forest Service road.  With just the two of us, it was definitely a bittersweet experience.  I think Molly felt our loss, too.  I like to think that Jojo would have been fine with missing this activation.  The weather, while not raining, was cool, overcast, and a bit gloomy.  The sunshine that she treasured was absent for us that day.  Hopefully, she has found a place in perpetual sunshine, and is soaking up the rays.  Good bye sweet pup.

We will always remember Jojo in her natural element, bathing in sunshine…

Hold on tight to those you love, and do something special with your four-footed companions.  I wish you all the best in 2024.

Best 73 de Brian – K3ES

News, POTA, QRP, SOTA

Any 2024 Radio Goals?

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It’s the beginning of 2024 (Happy New Year everyone!) and a lot of my radio friends have been setting goals and asking what mine are for the year.

Truth is, I’ve had so much going on during the latter half of December, I hadn’t stopped to think about 2024 goals.

This morning, with a cup of coffee fueling my brain cells, I came up with a few ideas.

Here are the goals I’ve pieced together for 2024:

  • Complete a CW satellite contact
  • Complete a POTA activation using FT8
  • Add 20 more parks to the number of unique POTA sites I’ve activated
  • Add 5 new summits to the number of unique SOTA summits I’ve activated
  • Update: One more…build that QCX+ a good friend Bob gave me, then put it on the air!

Out of these goals, I think the second, completing an FT8 POTA activation, will be the easiest. I’m mainly making it a goal for 2024 so that I actually carry through with doing it.

The CW satellite contact?  I’ve got the gear to do it now, I believe, but this will take me well outside of my comfort zone. That’s a good ting. Making it a goal for 2024 will encourage me to bite the bullet.

The last two POTA and SOTA goals will actually be the toughest for me simply because we haven’t ironed out our travel plans for 2024 as of today.  Funny part is I know some leaderboard POTA and SOTA activators that would knock these goals out in the month of January without breaking a sweat!

I’ve activated all of the low-hanging POTA fruit around my QTH (with three exceptions) so any new unique parks will be further afield and more easily achieved if we take some family road trips.

I’ve many more SOTA summits to hit here in North Carolina alone, but again, so much depends on my available free time.

Your 2024 Goals?

What are your goals for 2024? Please comment if you care to share!

Field Reports, News, Portable, POTA, QRP, Skills, Videos

Keying In The Rain: One rather soggy but incredibly fun POTA activation!

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I’m lucky enough to live in a part of the world where–by and large–the weather is pretty darn nice.

In fact, I recently received a comment from a reader who jokingly said that I should work for the tourism board of western North Carolina because the weather always seems so pleasant in my POTA/SOTA videos.

It’s true: most of the time I hit the field to play radio, the weather is very pleasant.

That said, you see more of these “fair weather” activations because I tend not to make videos of ones in poor conditions mainly because I don’t like managing the camera in high winds, heavy rains, or even super cold conditions–especially when I want to get in and out of the field quickly. The camera tends slows everything down.

On Friday, December 1, 2023, though, I decided to do a park activation in the rain and make a video! Here’s my field report:

Pisgah National Forest (K-4510)

That Friday morning, I dropped my daughters off at classes, then made my way to the Mills River library to put the finishing touches on a field report and publish it. It was rainy and I wasn’t complaining; it had been a very dry fall in WNC up to that point.

After I published my field report and attempted to catch up on the email backlog a bit, I hopped in the car and headed to the Sycamore Flats picnic area in Pisgah National Forest (K-4510) and Pisgah Game Lands (K-6937).

That day, knowing it would be soggy, I packed my Discovery TX-500 which is pretty much rain-proof. By this, I mean that it’s designed to cope with rain, but it’s not designed to be completely submerged in water.

Truth be told, I had no intention of making an activation video. Once I arrived on site, though, I thought, “Why the heck not?” After all, other than being rainy and chilly, conditions were pretty pleasant. That and my OSMO action camera is completely waterproof.

I grabbed the camera and started filming the activation while closing up the car.

Setting Up

When playing POTA in the rain, I tend to select picnic tables or sites that are under the canopy of trees if at all possible. Trees not only provide antenna supports, but they also help divert a bit of the rain.

I found an ideal site under the canopy of a few hemlocks.

I deployed my PackTenna end-fed half-wave (EFHW) oriented (nearly) vertically and with the feed point close to the tree trunk so that it would be better protected from the rain. I wasn’t worried about the antenna getting wet, but I also didn’t want the toroid and windings to get completely soaked either. It’s never a bad idea to use what bit of natural protection the trees can offer.

As you can see in the photo above, I had my TX-500 completely exposed, but the battery, in-line fuse, and (to some extent) the speaker mic were all protected in the TX-500’s Telesin Case.

As always, I used my Rite In The Rain notepad which is a champ at handling wet conditions. Continue reading Keying In The Rain: One rather soggy but incredibly fun POTA activation! →

Field Reports, Guest Posts, Portable, POTA, QRP

Field Report: Alan’s P2P POTA Activation Challenge!

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Many thanks to Alan (W2AEW) who shares the following guest post:

A self-imposed POTA Park-to-Park Challenge…

by Alan (W2AEW)

One of the things I love about the Parks on the Air program is that every activation is a bit of small challenge.  What will the band be like?  What antenna will I be able to deploy when I get there?  Will I have a spot to setup?  Will my CW ‘ear’ be properly tuned up? You get the picture…

There are a few parks that I activate much more than others – call them my “home” parks.  These are the ones that are close to my home, easy to get to and setup.  One in particular,  Washington Rock State Park (K-1635), is certainly the closest. It has some interesting Revolutionary War History.

Not only is this park very close to my home, it also has pretty good elevation (about 500’) for this part of New Jersey.  In fact, the local fire department hangs a very large illuminated star during the Christmas season at their building that is adjacent to this park.

This star can be seen for miles to the South and East of the ridge.

It’s no wonder that I’ve activated this park more than 20 times in the last year and half.

My XYL Nancy was *very* generous to me this year at Christmas – gifting me a new Begali Adventure CW paddle!  She even had it engraved with my call:

I wanted to think of a unique way to celebrate my first POTA activation using this paddle. I would be going to K-1635, so the location would be very familiar.  Therefore, I thought of an interesting self-imposed challenge…   Attempt to complete an activation with ONLY Park to Park contacts!

As I thought about this, I figured my best chance of success would be to operate on the weekend (significantly more parks are active), and use my most efficient multi-band antenna (a 40m EFHW).

Being an engineer, I’m use to having goals.  I’m also used to having additional constraints imposed – let’s call them stretch-goals.  Possible stretch goals for this P2P Activation Challenge could be:

  • Operate QRP (all of my POTA activations are QRP, so not much of a stretch)
  • Operate only CW (nearly all of my activations are CW, and this helps with the QRP goal too)
  • Attempt this using a more compromised antenna
  • Attempt this during a weekday

It turns out I had a few free hours on Wednesday, December 27, 2023 to play radio…  It was kind of a dismal day weather-wise.  I figured it might be the day to attempt this challenge.  The wet weather had me thinking that I’d setup my SuperAntenna MP1 vertical instead of using the 40m EFHW (and having it and the throw line get all wet and muddy).  The stage was set for the challenge including the stretch goals.

I setup the MP1 on the bedrail of my truck, using an MFJ-1976 ten-foot whip on top.

The band conditions were in pretty good shape, so I figured I had a shot.  I setup the rig inside the truck because of the rain, and got the iPad going with the POTA spotting page to see who I could hunt.  I logged four P2P contacts in the first 20 minutes, so there was hope!

In the end, it took about 90 minutes to log 11 Park-to-Park contacts.  Well, actually 12, since one of them turned out to be a two-fer.  I logged a few “familiar” activators, including Teri KO4WFP – a frequent contributor of Field Reports here, and Jonathan KM4CFT – running a two-fer out of North Carolina.  There were a few that I noted in my paper log because I had a good copy on them, but ultimately couldn’t bust thru the pile ups there were getting (like K7SHR at K-10946 in WY and K0YY at K-4416 in TX).

A personal thanks to all of the activators in my log that helped me reach my P2P Challenge:

  • KL7NL at K-6945 in NC
  • KM4CFT at K-8313 and K-3378 in NC
  • WD4AWD at K-2982 in TN
  • KU8T at K-4208 in IN
  • KO4WFP at K-0659 in FL
  • W0ABE at K-10532 in CO
  • N4XTT at K-2982 in TN
  • NM1L at K-7475 in FL
  • KC1BDJ at K-7879 in FL
  • KI5GBQ at K-7687 in OK
  • NS1C at K-2420 in MA

All contacts were on 20m with the exception of NS1C on 40m.  All were CW.

This was a fun little challenge, one that I hope to repeat in the future.  Hope to see you all on the air – POTA-ON!

72 de W2AEW

Field Reports, Guest Posts, News, Portable, POTA, QRP

KO4WFP: The Countdown Begins with Jack Hill State Park

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Many thanks to Teri (KO4WFP) who shares the following guest post:

The Countdown Begins with Jack Hill State Park

by Teri (KO4WFP)

Having completed my kilo for Wormsloe State Historic Site (K-3725) and earned the Marathon Award for the Straight Key Century Club, I needed a new goal into which to sink my teeth. I’ve often set goals in my life as they motivate me to learn and step outside my comfort zone. So what better goal than to activate 60 parks new to me over the next year! I admit it is ambitious; however, goals should excite you as well as make you a little nervous because then you know you are stretching yourself.

How do I plan to accomplish activating 60 new parks? The weeks my son has a break from school offer the perfect opportunity to travel. I can also work in overnight trips to locations in Georgia or South Carolina throughout the year. To save money, I’ll drive on these trips and camp. Most state parks which offer camping are also a park on the POTA list, an easy win-win. For safety, my “POTA pooch” Daisy will accompany me if I am alone, offering an opportunity for the two of us to strengthen the bond we have and work on her training.

My first break-week trip is to Florida during the second week of winter break, December 24th through January 1st. I have nine to ten parks I plan to activate that week, depending on the weather. Daisy and my brother Joseph (no, he is not a ham) will accompany me. Joseph and I took a cross-country trip out west in my twenties and spent six weeks on the road. We mostly camped but also visited friends and relatives along the way.

However, before I leave on my Florida trip, I began my pursuit of 60 new parks with Jack Hill State Park, a park that is only an hour from my new QTH in Bloomingdale, Georgia.

Anyone who knows me knows that I am not a fan of winter. (Spot me this as I live in the Deep South.) However, I am determined to not miss out on POTA because of a little cold weather. Thinking the temperature would be warmer in the afternoon, my dog Daisy and I headed out later than usual on Wednesday, December 13th for our activation.

I enjoy driving in rural Georgia. You never know what you’ll see. Daisy and I went through the town of Bellville, a whistle stop in the middle of nowhere. The town was established in 1890 along the tracks of the Savannah & Western Railroad and was a regional transportation hub for agricultural and timber products. A mural in the town across from the old depot pays homage to the town’s railroad past.

Jack Hill State Park is located in the town of Reidsville, Georgia. It offers amenities that include boating and fishing on the park’s lake, accommodations in the form of camping as well as cottages to rent, a splash pad for kids, and even a free miniature golf course! The park was originally named Gordonia-Altamaha State Park as it is near the Altamaha River. However, it was renamed Jack Hill State Park in 2020 in honor of Senator Jack Hill who was instrumental in the local community. Continue reading KO4WFP: The Countdown Begins with Jack Hill State Park →

Field Radio Kits, Guest Posts, News, Portable, QRP, QRP Radios

Field Radio Kit Gallery: KK7ISX’s Xiegu X6100 Field Kit

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Many thanks to Todd (KK7ISX) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery page. If you would like to share your field kit with the QRPer community, read this post.

KK7ISX’s Xiegu X6100 Field Kit

Hey Thomas, I love perusing the Field Radio Kit Gallery section of your website. It’s helped me dial in my SOTA kit while I’ve been injured this fall so I’d like to pay it forward.

Photos

This is my current set up for my Xiegu X6100:

Equipment list:

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Accessories, Field Reports, News, Portable, POTA, QRP, Videos

October Leaf Colors at Lake James: Pairing the Elecraft KX1 and Chelegance MC-750

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This past fall was a busy season for me.

So busy, in fact, I completely overlooked an activation video I filmed two months ago (on Monday, October 23, 2023)!

That said, one of the things I love about making field reports and recording videos is re-living activations a second time. It’s fun to remember the site conditions, the weather, the radio/antenna choices, and all of the folks I might have logged.

I enjoyed stepping back in time a couple of months for this one!

Lake James State Park (K-2739)

That Monday was the first day I surfaced to fit in an activation after fighting a respiratory bug the previous week. I felt much better and tested negative for Covid, so I made my way to Hickory to help my parents with some tasks.

On the way that morning, I stopped by Lake James to play a little POTA with one of my favorite radios in the world: the Elecraft KX1.

On October 23–as I mention in the video–the QRP world had only just learned about the new Elecraft KH1 and I had yet to receive the almost-production unit I ordered as a field tester.

I knew that once I received the KH1, I’d be using it heavily for a few weeks, so I wanted to fit in a little KX1 time in advance!

POTA in Color!

The weather and fall colors at Lake James were absolutely stunning!

New KX1 Tufteln Cover!

Back when I filmed this video, it had only been one week since the W4 SOTA campout where my friend Joshua (N5FY) gave me a few prototype snap-on protective covers for my KX1s.

These covers are very clever because they protect all of the important front-panel components yet remain very low-profile so add little bulk to the radio.

Image: Tufteln.com

Joshua provides two new screws for the front panel (you simply replace out the stock KX1 screw); the cover magnetically snaps onto the higher-profile screws and seats itself securely.

Image: Tufteln.com

I demonstrate my cover in the activation video.

At the time, this was a product Joshua was considering adding to the Tufteln line-up–since then, he’s made it available to order–click here to check it out.

At present, Joshua offers the covers in two colors: black and light brown. Mine are the light brown color.

You’ll notice in the video that Joshua added my callsign to the covers he gave me. I don’t think the production covers are customized with your callsign because Joshua makes these in batches. You would need to check with him about customization–I assume there would be an extra charge and lead time for that because it would require modifying the file and printing a one-off cover.At any rate, I love the covers and have added them to all of my KX1s. Note that I used a Sharpie to write the name of each radio on the cover–this makes it very easy to tell the difference between my KX1 models (they’re named Ingrid, Greta, and Ruby)!

Gear:

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On The Air

It was early enough in the morning that I decided to spend some time on the 40 meter band to work POTA “locals.” I deployed my Chelegance MC-750 with the 40 meter coil.

I tested the SWR and discovered it was high due to a loose connection on the end of the cable assembly–I fixed that and the SWR came down to 2.5:1. With the MC-750, I could have easily lengthened or shortened the whip to get a perfect match, but instead I took the lazy (& speedy) route and simply used the KX1 ATU to get a 1:1 match.

Even though I’d spent a long time talking about the KX1, KH1, the Tufteln cover, etc. in the  video, I actually didn’t have a lot of on-the-air time. (Typical me to talk away my activation time!).

I started calling CQ POTA and the contacts started rolling in.

Within ten minutes, I’d already worked ten contacts.

I worked a couple more, then called QRT. Looking at the time, I had to end this activation earlier than I’d hoped. I needed to hit the road again.

I packed up in short order, but still took a few moments to enjoy the beauty of that lovely autumn morning.

QSO Map

Here’s what this five watt activation looked like when plotted out on a QSO Map:

Activation Video

Here’s my real-time, real-life video of the entire activation.  As with all of my videos, I don’t edit out any parts of the on-air activation time. In addition, I have monetization turned off on YouTube, although that doesn’t stop them from inserting ads before and after my videos.

Note that Patreon supporters can watch and even download this video 100% ad-free through Vimeo on my Patreon page:

Click here to view on YouTube.

Thank you

Thank you for joining me on this activation!

I hope you enjoyed the field report and my activation video as much as I enjoyed creating them. I enjoyed reliving this Octeber activation.

Of course, I’d also like to send a special thanks to those of you who have been supporting the site and channel through Patreon and the Coffee Fund. While certainly not a requirement as my content will always be free, I really appreciate the support.

As I mentioned before, the Patreon platform connected to Vimeo make it possible for me to share videos that are not only 100% ad-free, but also downloadable for offline viewing. The Vimeo account also serves as a third backup for my video files.

Thanks for spending part of your day with me!

Here’s wishing all of the you best of the Holiday Season!

Cheers & 72,

Thomas (K4SWL)

Field Reports, News, Portable, POTA, QRP, Videos

30 Meters with a 4 Foot Whip–? Impromptu POTA Hunting with the Elecraft KH1!

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My Elecraft KH1 packed in a Pelican Micro M40 case. This protects my KH1 while traveling around in my EDC backpack.

On Friday, December 8, 2023, playing POTA was not in the plan.

I needed to finish a field report, publish it, then attempt to make a dent in my email and comments backlog. Lately–as you might have noticed–it’s been difficult to keep up with everything.

That morning, I dropped off my daughter at her robotics class, then made my way to the Mills River Library and municipal park.

I arrived at the park around 9:20 AM, parked my car at one of the free EV charging spots, then walked to the library front door only to discover a sign that said they’d be opening an hour late (10:00).

All of the sudden, I had 40 minutes to kill.

Since my Elecraft KH1 now lives in my EDC backpack full-time, I thought, “Why not hunt a little POTA?”

I started walking to the baseball field to set up then turned around, went back to the car, and grabbed my action camera. I mean…why not film this session since the camera was in the car trunk/boot? Right–? Right!

Gear:

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POTA Hunting!

Keep in mind that the Elecraft KH1 is designed to operate on 20, 17, and 15 meters using the 4 foot whip antenna (assuming you have the internal ATU option).

This was awfully early in the morning for any of those bands–I knew 20 meters would be my best bet of the three.

I tuned around, but I couldn’t hear or work any of the handful of activators on 20 meters. They were all outside my 20M propagation footprint–most were simply too close for 20M.

Then I noticed my buddy, John (AE5X) spotted on the 30 meter band.

For kicks, I tuned down to the 30 meter band, found a clear spot, then hit the ATU button. I was surprised to achieve a 2:1 match!

What?

Of course, a decent impedance match doesn’t equate to efficiency. Then again, what did I have to lose? Nothing…that’s what!

I called John once, but another strong station caught his attention. Once he finished that exchange, I called him again and he replied! Woo hoo!

I suspect my effective power output was around 1-2 watts, but it was enough to make an exchange with John, so I was a very happy camper.

I also tried to work KD8IE on 30 meters, but could not punch through the strong signals from other POTA hunters.

By chance, though, I heard my buddy Eric (WD8RIF) calling CQ POTA just below KD8IE.  I could hear Eric because I had my filter wide open–as in SSB wide.

I tuned  down, called him and he came back with my call and a question mark after two tries.

We exchanged details, sent 72, and logged each other. What fun!

I found out later that my signal level was actually fine on Eric’s end, but I was *almost* outside of his CW filter edges. He struggled hearing me because I was too far from his centered frequency. I didn’t notice this on my end, of course, because I had my filter so wide open.

I’ve learned from this: next time I’ll narrow my filter before hunting stations. The majority of activators do not run with their filters wide open like I do.

By the way, if you’d like to read Eric’s field report from that same time frame, click here.

Video

Here’s the real-time, real-life “Slow TV” video of this hunting session with the KH1:

Click here to view on YouTube.

30M on the KH1 whip!

I’m pretty sure Elecraft wouldn’t recommend using your KH1 on 30 meters with the whip only because of its low efficiency, but I also know the KH1 will have no problem dealing with the 2:1 match. I bet you’d get an even better match if you lengthen the counterpoise–I simply used the supplied 13′ wire.

Of course–and again–30M on a 4′ whip is not an efficient antenna system, but it’s efficient enough to make some contacts! As my buddy Kurt (NT0Z) says, “RF gotta’ go somewhere.”

I will check in with N6KR and see what he says about this setup.

Library time

Post activation, I found a comfy spot to work in the library and published a new field report.

It struck me that no one passing by would have ever guessed that I had a full HF station in my backpack! For just a moment, it made me feel like an unassuming Cold War spy!

Oh yeah, the backpack: I took advantage of a Black Friday sale at Trakke and purchased the Bannoch Backpack I’d been eyeing for weeks–the discount was deep!

I justified this purchase knowing that I was doing my bit to support the economy of Scotland! Ha ha! Seriously, though, I do love this backpack.

Thank you!

Thank you for joining me for this mini POTA hunting session!

As I mentioned before, the Patreon platform connected to Vimeo make it possible for me to share videos that are not only 100% ad-free, but also downloadable for offline viewing. The Vimeo account also serves as a third backup for my video files. Click here if you’d like to support me on Patreon. No pressure.

Thanks for spending part of your day with me!

Cheers & 72,

Thomas (K4SWL)

Antennas, Field Reports, New Products, News, Portable, POTA, QRP, SSB, Videos

SSB and CW QRP POTA: Testing my new KM4CFT End-Fed Antenna Kit!

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A few weeks ago, I mentioned that Jonathan (KM4CFT) sent me one of his new QRP end-fed half-wave/random wire antenna kits.

When my friend, Alan (W2AEW), caught wind that I planned to buy some 26AWG wire for this build, he sent me a spool of wire from a large reel he’d recently picked up at a hamfest.

What a nice guy! The blue wire is absolutely ideal for portable antennas.

Being the nice guy he is, Alan actually published a video about building Jonathan’s antenna kit on his YouTube channel. I highly recommend watching it!

Before I received the kit, I already knew what type of antenna I’d build: a 30 meter end-fed half-wave (EFHW) linked with a 40 meter extension. This antenna design has been on my mind for some time and Jonathan’s kit was the perfect excuse to build one.

Why a 30M EFHW with a 40M extension? Because a 40M EFHW gives me excellent SWR matches on 40, 20, 15, and 10 meters without needing an ATU.  A 30M EFHW gives me matches 30 and 17 meters.

Thus, with one linked wire antenna, I can cover 40, 30, 20, 17, 15, and 10 meters! That’s a lot of bands!

And since the antenna needs no extra matching, it’ll work with my transceivers that lack an internal ATU.

The Mountain Topper MTR-5B I acquired earlier this year.

In fact, I originally thought about this antenna design to use with my Mountain Topper MTR-5B which covers 40, 30, 20, 17, and 15 meters.

I built this antenna by first trimming it for a 1:1 match on 30 meters including a loop and strain relief to attach the extension.

When I was satisfied with my 30M EFHW, I then made the 40M extension, attached it to the 30M section with 2mm bullet banana connectors, then trimmed the antenna for a 1:1 match on 40M.

I spent the better part of 60 minutes trimming this antenna. I feel like patience really pays off because it’ll set up the antenna for good matches on all of the upper harmonics. Admittedly, I was a bit pressed for time that day, so I only tested this antenna in one configuration (an inverted vee shape) so hadn’t checked the SWR as a sloper or vertical.

My advice is to aim for a 1.3:1 or better match on 30M and 40M–that should be very doable if you wound your transformer correctly.

This was my first attempt at making in-line links, so I wouldn’t consider link my method as a “best practice”–rather, check out K7ULM’s guidance for making in-line links. Continue reading SSB and CW QRP POTA: Testing my new KM4CFT End-Fed Antenna Kit! →