Tag Archives: Elecraft K1

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

QRP with Friends: Brian (K3ES) Joins Me for a Two-Fer POTA Activation!

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On the activator side of things, Parks On The Air is often a solitary pursuit for me. I typically squeeze in activations as my schedule allows—usually at random times during the day in parks that happen to be along my daily route.

But every once in a while, the stars align and I get the chance to activate with a friend. When that happens, it only amplifies the radio fun. Saturday, March 22, 2025, was one of those special days. My dear friend—and frequent field report contributor—Brian (K3ES), along with his amazing wife and photographer, Becky, stopped by Asheville en route to the Outer Banks.

I was so happy everything came together and we were able to meet up for a short, relaxed, and thoroughly enjoyable activation.

Two-Fer Time!

When out-of-state activators come through the area, I always try to offer them the option of a two-fer—activating two parks at once—to maximize their POTA opportunities. I’m not sure Brian had strong feelings about this either way, but it was simply too easy to pair the Blue Ridge Parkway (US-3378) with the Mountains-to-Sea Trail (US-8313). Since we were meeting at the Folk Art Center, all it took was picking the right picnic table near the MST.

In my rush to leave the QTH that morning, I realized halfway down the driveway that I’d forgotten to pack my antenna. I could’ve turned around, but I knew Brian would have a few antenna options stowed in his field kit—and of course, he did!

He chose to deploy a homebrew end-fed random wire with a 29.5’ radiator and 17’ counterpoise. We paired it with my Elecraft K1 transceiver–a radio I knew Brian had never operated.

The only drawback of this particular picnic table is its proximity to the Mountains-to-Sea Trail. When deploying a wire antenna, you have to be careful not to obstruct the path for hikers. We positioned the wire in a near-vertical configuration above the table and kept the throw line tucked away on the opposite side from the trail.

We were also quite conspicuous—another reason I usually avoid this picnic table when activating solo. On a busy day, it’s not unusual to have a dozen people stop by to ask what you’re up to. It’s a great outreach opportunity, but a string of interruptions can make it difficult to complete exchanges—especially while sending CW. Sadly, my internal CPU isn’t optimized for multitasking!

Right to Left: Brian (K3ES) and Thomas (K4SWL)

But when there are two of you taking turns at the key, it works beautifully—one person can handle the questions while the other shows just how cool Morse code still is in the 21st century.

It was a fairly quiet day at the Folk Art Center, but one curious family did stop by to chat with us during Brian’s turn at the key—and I really enjoyed the interaction.

Gear

Note: All Amazon, CW Morse, ABR, Chelegance, eBay, and Radioddity links are affiliate links that support QRPer.com at no cost to you.

Radio

  • Elecraft K1 (four band version with optional ATU and internal AA battery pack)

Key

Antenna and Throw Line

Pack and Case

Logging Supplies

Battery

Camera/Audio Gear

On The Air

Brian kicked things off, knowing that band conditions had been flaky of late. He tuned up on 20 meters using the K1’s ATU and started calling CQ POTA. Continue reading QRP with Friends: Brian (K3ES) Joins Me for a Two-Fer POTA Activation! →

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

First Field Outing with My New-to-Me Elecraft K1!

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In the chaos of the past two months, I managed to post a few field reports out of chronological order. I’m probably the only one who notices—these aren’t sequential stories, after all—but since I was there for each activation, it feels odd when the timeline’s off.

Case in point: you might recall this recent post where I shared how I finally landed an Elecraft K1 field-portable transceiver. I’d been hunting for a K1 for years, so I was thrilled when this one popped up locally in North Carolina.

Last month, I published this field report where I paired the K1 with my AX1 antenna for a low-profile (but high-performance) activation in Pisgah National Forest.

But here’s the thing: that was actually my second activation with the venerable K1. The first one? It took place along the Blue Ridge Parkway on February 24, 2025.

Taking the K1 to the Field!

It’s always exciting to take a new radio to the field—especially one I’d been chasing for so long. I purchased the K1 back in August of last year. As soon as it arrived, I tested it and realized it was in serious need of alignment.

I brought it over to my friend Vlado (N3CZ), hoping to use his signal generator to sort it out. Unfortunately, we didn’t have time that day, so I left the rig at his QTH. Then Hurricane Helene hit, and… well, suddenly it was 2025.

We finally got around to the alignment in February. As soon as it was dialed in, I hit the field.

Blue Ridge Parkway (US-3378)

I made my way to a familiar spot along the Blue Ridge Parkway—the Folk Art Center—and set up the K1.

Mine is a four-bander (40, 30, 20, and 15 meters) with both the optional internal ATU and AA battery pack. To give the internal tuner a little workout, I paired it with my trusty Tufteln 9:1 End-Fed Random Wire antenna.

Once deployed, I hit the ATU button, and the K1 quickly found a solid 1:1 match. With logs at the ready, it was time to hit the airwaves!

Gear

Note: All Amazon, CW Morse, ABR, Chelegance, eBay, and Radioddity links are affiliate links that support QRPer.com at no cost to you.

Radio

  • Elecraft K1 (four band version with optional ATU and internal AA battery pack)

Key

Antenna

Pack and Case

Logging Supplies

Battery

Camera/Audio Gear

On The Air

I started calling CQ POTA on 20 meters, thinking I’d eventually migrate to 30 meters if things slowed down. Continue reading First Field Outing with My New-to-Me Elecraft K1! →

Morse Code, News, Portable, QRP, QRP Radios

The Return of the Venerable Elecraft K1!

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Some of you might recall that back in the summer of 2022, I performed a POTA activation with my buddies Eric (WD8RIF) and Miles (KD8KNC) at Hawks Nest State Park (K-1813). Here’s the field report, and video:

You might have also noticed that I recently performed an activation with my own Elecraft K1. Here’s a bit of the back story on this particular radio:

My K1 Journey

I originally owned an Elecraft K1 from around 2010 to 2013. It was a four-band version (40, 30, 20, and 15 meters) with the optional ATU. I loved that little radio, but at the time, I wasn’t as dedicated a CW operator and hadn’t yet discovered programs like WWFF and SOTA—POTA didn’t even exist back then! Those programs would’ve given me a perfect excuse to take a lightweight, portable radio to the field regularly.

Eventually, I sold my K1 to help fund the purchase of an Elecraft KX3.

I mentioned in my 2022 K1 field report that I’d been keeping an eye out for a deal on another K1. That Hawks Nest activation reminded me just how much I enjoy operating this simple QRP kit radio.

Not an Easy Search

Finding a good K1 isn’t easy, for a few reasons.

First, there are quite a few K1 variants out there, since Elecraft offered a number of optional packages. The K1 supported up to four bands, but the default kit only included two. Optional modules included an ATU, a battery pack, and a noise blanker.

Most of the K1s I’ve come across have only two bands and no ATU. I’ve been on the lookout specifically for a four-band version with the ATU.

K1s—regardless of configuration—rarely show up on the used market. When they do, the good ones are snatched up almost instantly.

And perhaps most importantly: all K1s started life as kits. There was never a factory-assembled option. So, your K1 is only as good as the person who built it. Building one yourself is no longer an option, either—at least, in the past ten years, I’ve never seen an unbuilt K1 kit at a swap meet, in person or online.

Then Came a Tip…

On July 19, 2024, my buddy Eric (WD8RIF) sent me a message about a K1 for sale.

I skimmed the message on my phone and immediately noticed that it belonged to Joe White (WA4GIR), one of the founding members of the Knightlites QRP Association. It was a four-band K1 with the ATU and the internal battery pack—asking price: $550 shipped.

I ran to my computer and fired off an email expressing my interest.

Soon after, I learned from Gary (N3GO) that this was actually an estate sale to benefit Joe’s widow. Somehow, I had completely missed the /SK in Eric’s original message. Joe had become a Silent Key in July 2023, and I had missed the news due to our summer travels that year.

Suddenly, $550 didn’t feel like too much at all. I had been hoping to find a K1 closer to $400–$450, but this one had two valuable options I wasn’t even counting on. On top of that, it was built by someone I knew of—and had even met before.

Totally worth it, in my book.

Not a Shelf Queen

This K1 isn’t going to sit on a shelf. I plan to take it to the field and put it through its paces with both POTA and SOTA.

In fact, I’ve already completed two activations with it—the one I posted out of order a couple of weeks ago, and another–my first outing–I’ll be sharing soon.

Noise Blanker vs. Battery Pack

Eric reached out last month and asked if I needed a noise blanker module for my K1. Honestly, I hadn’t even checked to see if mine had one installed.

Turns out, the internal battery pack and the noise blanker are mutually exclusive—you can’t install both. The smaller speaker used with the battery pack conversion kit occupies the same physical space as the NB module.

That’s fine by me. I very rarely need a noise blanker in the field anyway and I’ve no plans to mount this in a vehicle.

That said, I am considering replacing the AA battery holder with a small Li-Ion pack—maybe even one I can charge internally, like Elecraft’s KXBT2.

I’m curious: have any other K1 owners done this mod? Had Li-Ion packs been commonplace back when the K1 was released, I imagine this would’ve been a standard option.

Fine Tuning

This radio is in excellent shape—impressive considering it was built in 2001 (serial number 420!).

The only maintenance I’ve done so far is calibrating the frequency—it was about 500 Hz off. I do eventually need to look at the button contacts, which are a bit finicky.

K1 Bail or Stand?

If you own a K1, I’d love to hear what solutions you’ve found for propping it up in the field.

I’m thinking about adding a small fold-out laptop foot, like the one I installed on my TR-35, to give it a better viewing angle. I don’t want anything bulky—just a little elevation to make operation more comfortable. Please comment if you have a suggestion!

Why the K1 Still Shines in the Field

After spending time with this K1 again, I’m reminded why it’s such a superb field radio—especially when fully loaded. With the internal ATU, it easily matches my random wire antennas, making setup in the field quick and painless. I love that the K1 is a complete field radio system in one compact package.

The receiver and audio characteristics are truly impressive: it has a low noise floor, smooth QSK, and brilliant, mellow audio that’s easy on the ears during long CW sessions. Keying is clean and responsive—just what you want when you’re trying to work a pileup or snag that weak signal.

And while it’s not pocket-sized like some modern QRP rigs, for a tabletop-style radio, the K1 is remarkably small and lightweight. It slips into a field pack without taking up much space, yet delivers performance that holds its own against much newer gear.

Since the K1 was a kit radio, it’s also easy to repair and incredibly well-documented. I’ve always believed that kit radios are ideal for emergency preparedness. If something goes wrong, it’s much easier for a non-radio-tech to trace a fault and potentially fix it. That peace of mind—knowing you can service your own gear—is a huge bonus.

In short, the K1 may be over two decades old, but it still ticks all the right boxes for avid field operators!

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

Pairing the Elecraft K1 and AX1 for low-profile, low-impact portable POTA!

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Friday, February 28, 2025, felt like another “rinse and repeat” day—a pattern I’ve grown used to over the past few weeks.

That morning, I woke up early, published a post on QRPer.com, and by 7:30 AM I was outside with my chainsaw, preparing piles of tree debris for the skid steer operator we hired to move it to the roadside.

As you might imagine, he can collect debris much faster than I can cut and prepare it, so my goal has been to stay ahead of him. I worked steadily all morning and, combined with what I had cut the previous day, managed to prepare enough to keep him busy for the rest of the day. That was fortunate because I needed to help my daughters with activities in town all afternoon.

Finding POTA time

I’ll be honest—after grabbing a quick lunch and a shower, I was pretty worn out. Part of me wanted to use any spare time to sneak in a nap. But I also knew I could use a little POTA therapy, and the weather was unseasonably gorgeous—almost spring-like.

Looking at my schedule, I realized I had about an hour to spare, enough time to detour and activate Pisgah National Forest (US-4510) at the Sycamore Flats Picnic Area. It was the most convenient spot along my route that afternoon.

As for radio gear, I already had my Elecraft K1 packed from an earlier activation that week (which I also recorded and will post soon—obviously, out of chronological order!).

For variety, I didn’t want to use the same antenna as the previous activation. Instead, I grabbed one of my favorite compact antennas to see how well it would pair with the K1: the Elecraft AX1.

If you’ve followed QRPer for long, you’ll know I often use the AX1 during both POTA and SOTA activations. Despite its extreme size compromise, it has always performed well for me.

Loaded verticals like the AX1 typically have a high Q (narrow bandwidth) and benefit from an ATU or capacity hat to help with impedance matching. Luckily, my new-to-me Elecraft K1 has the optional built-in ATU, meaning I could attach the AX1 directly to the back of the radio.

I’ll save the full story of how I acquired this particular K1 for my next field report, but let’s just say I’d been hunting one for a long time—and this one showed up locally. It’s a four-band version (40, 30, 20, and 15 meters) with both the ATU and internal AA battery pack options.

Sycamore Flats Picnic Area

I arrived on site around 13:35 local time and had about 45 minutes to play radio.

I started the activation video and walked through the picnic area until I found a good table. Truthfully, though, the beauty of using the AX1 is that almost any flat surface will do—it’s that low-profile and low-impact.

Once I found a table, setup was super quick: I placed the K1 on the table, connected a battery, attached my Palm Mini paddle (its maiden POTA voyage!), and plugged the AX1 directly into the back of the radio. I wasn’t in a hurry–and it truly shows in the video–but I’m confident I could have deployed the entire station in about 60-90 seconds if required. That’s the magic of the AX1—minimal setup time.

With everything connected, it was time to hit the airwaves!

Gear

Note: All Amazon, CW Morse, ABR, Chelegance, eBay, and Radioddity links are affiliate links that support QRPer.com at no cost to you.

Radio

  • Elecraft K1 (four band version with optional ATU and internal AA battery pack)

Key

  • Palm Mini Paddle with new connection cord

Antenna

Pack and Case

Logging Supplies

Battery

Camera/Audio Gear

On The Air

Once on the air, I was thrilled to have no problem collecting hunters for the logs. Continue reading Pairing the Elecraft K1 and AX1 for low-profile, low-impact portable POTA! →

Field Reports, News, POTA, QRP, QRP Radios

Reunited with the venerable Elecraft K1 at Hawk’s Nest State Park

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As you might have guessed, I’m a bit of a QRP radio addict.

Over the years, I’ve owned and sold quite a few rigs; there are some models that gave me instant seller’s remorse.

In the past, I sold good QRP radios to buy “better” ones: transceivers that had a more compact form factor, better feature set, better battery management, or other desirable updates/upgrades.

Boomerang!

In almost every case when I experienced seller’s remorse, that particular model of radio has eventually found its way back into my field kit.

A few examples:

  • I sold my original Yaesu FT-817 to purchase an Elecraft KX1. In 2020 I purchased a used FT-817ND then the following year a second FT-817ND for full duplex satellite work.
  • I sold my Elecraft KX1 to help fund the purchase of the Elecraft KX2. I purchased another KX1 in 2020.
  • I sold my Elecraft K2/100 to fund the purchase of my Elecraft KXPA100. I don’t regret purchasing the KXPA100 in the slightest (even though I so rarely use it), but I do regret selling not one, but two K2s over the years! I’ll snap one up if I find a good deal.

I also sold my Elecraft K1 to help fund the purchase of my Elecraft KX3 in 2013.

At the time, the seller’s remorse wasn’t immediate because the KX3 was such a revolutionary portable radio in almost every respect. The K1 seemed so limited in comparison.

Still, since I started doing CW POTA and SOTA activations, I’ve been keeping an eye out for a good deal on another 4 band/ATU Elecraft K1.

Why does the K1 have appeal when I have so many “superior” radios at my disposal–?

Good question! I reckon I just like it.

(Image via WD8RIF)

The K1 feels more like an analog radio rather than a digital one; no doubt, this is due to its VFO’s limited range. It’s more akin to an analog radio with a digital frequency display.

The K1 is also super compact for a radio with a traditional tabletop form factor. The menus and features take a bit of time to learn–they’re cleverly implemented, but you definitely need an owner’s manual or cheat sheet to master them.

The K1 is not general coverage; it can only be configured to operate on a maximum of four CW bands. It does have an internal ATU option, but I don’t think it’s on par with the KX-series internal ATUs in terms of matching range. It works well with a variety of field antennas, though!

The K1 does have a very low noise floor and wonderful audio. Those are perhaps the two things I love most about it.

Hawks Nest State Park (K-1813)

During my West Virginia POTA expedition with Eric (WD8RIF), Miles (KD8KNC), and Theo (The “Great Warg”) dog we hit  Hawk’s Nest State Park on Friday, May 20, 2022; this was our second park of the day (New River Gorge was our first).

En route to the site, Eric suggested I use his Elecraft K1 travel kit during this activation and I quickly accepted the offer!

I used everything in Eric’s Kit save the antenna.

Photo courtesy of WD8RIF.com

Instead, I paired the K1 with the homemade 40M End-Fed Half-Wave MW0SAW kindly sent me.

I also used a 50′ of feedline so that I could move the antenna as far away as possible from the picnic shelter Eric and I would both be using during the activation.

The long feedline also made it possible to set up the antenna in a way that it wouldn’t interfere with any park guests who might walk by.

Gear:

On the Air

The separation/distance from Eric’s Tri-Bander antenna worked a charm: there was very little interference between our two stations.

I started the activation by calling CQ POTA on 20 meters. Funny: I actually thought I was on 40 meters; the K1 display (much like that of the KX1) only shows the last three digits of the frequency display; when I saw “61.1” I assumed “7061.1” but of course it was actually 14061.1. I realized this as I later changed meter bands.

Although the propagation forecast was pretty dismal, the EFHW performed very well.

Within 18 minutes, I logged 16 hunters (including WD8RIF some 20 feet away).

I then moved to the 40 meter band (so Eric could move to 20) and worked an additional six stations in six minutes!

The final contact was both an HF and eyeball QSO with WD8RIF. I got that on video–very much a fun first for me!

QSO Map

Here’s what my five watts into an end-fed half-wave looked like on a QSO Map:

Activation video

Here’s my real-time, real-life video of the entire activation with WD8RIF. I include a bit about Eric’s station and also his QRPguys Tri-Bander antenna after I go QRT. As with all of my videos, there are no ads and I don’t edit out any of the activation:

Click here to view on YouTube.

WD8RIF’s report

Make sure to check out Eric’s field report which includes details about his KX3 set-up that you’ll see in the video above.

Thank you!

We spotted this little guy on a hike after completing the Hawks Nest activation.

Thank you for joining me (and Eric, Miles, & Theo) on this POTA activation.

Although detailed field reports take a few hours to write-up and publish (along with activation videos), I truly enjoy the process. It gives me a chance to re-live an activation and share the whole experience with kindred spirits. This was such a fun 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.

Oh, and if you have a four band Elecraft K1 with ATU you’d like to part with? Get in touch with me! 🙂

Cheers & 72/73,

Thomas (K4SWL)

Field Reports, Morse Code, News, Portable, QRP, QRP Radios

Keith is impressed with the Elecraft K1’s selectivity

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Many thanks to Keith (GW4OKT) who recently contacted me, noting that his took his Elecraft K1 to Llyn Brenig (Lake Brenig) in North Wales last weekend, and was impressed with its performance.

His outing coincided with the CQ Worldwide CW contest–a true test of any radio as this is one of the most RF-dense environments you’ll encounter on the CW portions of the HF bands.

Many lesser radios simply fall apart in contest environments like the CQWW.

Not the Elecraft K1, though! Keith noted that he was operating on 20 meters with his GWhip antenna on the roof of his car.

He made the following video:

Wow! I owned the K1 for a number of years and was incredibly impressed with its receiver although I can’t remember if I ever used it in a contest. It’s a brilliant field radio and sports a bullet-proof front end.

I should add, Keith, that I’m not the least bit envious of your Caterham Seven 310 SV. Not a bit. Not me.  🙂

Anyone else love the Elecraft K1 (or the Caterham Seven 310?) Please comment!

News, QRP

Elecraft discontinues the K1 and KX1

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My Elecraft KX1

After rumors surfaced about the demise of the Elecraft “K1” line, Wayne Burdick (N6KR) made the following announcement on the Elecraft email reflector, specifically mentioning the original K1:

We should have made a formal announcement here. Yes, we discontinued it because certain parts are hard to come by now, making it no longer cost effective for us to manufacture.

It was a great product for us, and I used mine for years, taking it on many trips. I thought of it as a “Sierra on Steroids” at the time (referring to an earlier design I did for the NorCal QRP Club). But we’ve moved on to more versatile field radios, including the KX2 and KX3.

73,
Wayne
N6KR

I’ve owned both the K1 and KX1 and they performed amazingly well. I suppose that’s why I also invested in both the KX3 and KX2 transceivers. I suppose all good things must come to an end.

I still own a K2/100 and I certainly hope Elecraft continues to support this fine transceiver. It’s unique in that it’s about the only American-made transceiver kit on the market that’s easily serviceable by a non-technician.  It’s also a rock-solid performer and, frankly, has a cult following of its own.

Vive le K2!