Tag Archives: Elecraft KX2

The Elecraft KH1 or KX2? Which one should you buy?

Even before I started taking my Elecraft KH1 to the field and generating reports and activation videos, I started receiving questions from readers and subscribers about how the KH1 might compare with other field-portable radios.

At least 70% of all of these questions asked specifically about the venerable Elecraft KX2.

Making a purchase decision

I’m not surprised so many are trying to make a purchase decision between the KH1 and KX2.

For one thing, the KH1 and KX2 represent some of the smallest, most compact and lightweight shack-in-a-box HF field radios on the market. We’ve a lot of QRP field radios to chose from these days, but few have options for both internal ATUs, internal batteries, and attachable paddles. Very few are as light and compact as either of these two radios.

Another reason for the comparison is that many are in the long queue to purchase a new Elecraft KX2. At time of posting this article, if you place an order for the KX2, you are going to wait a few months for delivery.  The KH1 also has a lead time, but it’s likely shorter than that of the KX2 (check out the Elecraft Shipping Status page for more info).

Comparing models

While the KH1 and KX2 have a lot in common, they’re also quite different in many respects.

We radio ops like to compare features and specifications and Elecraft knew the KX2 and KH1 would be compared frequently, so they created a handy chart:

Click here to download Elecraft’s KX2 v KH1 comparison chart (PDF).

At the end of the day, though, I would argue that one’s enjoyment of a radio has more to do with how well it fits the operating style of the owner.

The KX2 is one of the best portable QRP field radios ever made, in my humble opinion. It’s a little high-performance machine that can handle any mode you care to use between 80-10 meters.

The KH1, on the other hand (pun intended), is designed to be an exceptional handheld radio for pedestrian mobile use and as a super lightweight, low-impact, field portable station. It’s essentially CW-only and operates on 5 bands (40-15 meters).

If you can be honest with yourself about how you plan to use the radio, it’ll help you make this purchase decision.

For example, if you never see yourself operating pedestrian mobile–you’re more of a sit down at a table sort of op–there’s a good argument to go for the KX2. If, however, you’re an avid SOTA/POTA portable activator who is primarily a CW op and you like the idea of a super quick deployment and handheld operating from anytime, anywhere, you should consider the KH1.

Video

To dig into this comparison a little deeper, I decided to make a video where I discuss the differences between the two radios and also speak to different styles of operating and which radio might suit that style best:

Click here to view on YouTube. 

I would be curious which radio you prefer and why. Please consider commenting!

Thank you!

I hope you found this post and video useful.

As always, 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.

Patreon supporters have access to 100% ad-free, and downloadable videos for off-line viewing via Vimeo. The Vimeo account also serves as a third backup for my video files. This is how your support truly helps this site and channel!

Cheers & 72,

Thomas (K4SWL)

SOTA DX with a 20 Meter Delta Loop on beautiful Yonah Mountain!

I’ve taken a wide variety of antennas on SOTA (Summits On The Air) activations, but one wire antenna I’ve always wanted to deploy is a simple vertical delta loop.

This summer, I mentioned to my friend Joshua (N5FY) that I planned to build a delta loop antenna and next thing I know, he built one. I suppose he’d been thinking about adding it to his line of portable wire antennas at Tufteln.

I was planning to build a 20M delta loop fed with twin lead, but Joshua’s choice is better for multi-band operating. His 20M delta loop features a 4:1 transformer so it can be fed with 50 Ohm coax like my RG-316 (which is also easier to pack than twin lead).

You might recall that I used his 20M delta loop antenna at Holmes Educational State Forest (see photo above) in early September. It worked a charm and wasn’t too difficult to deploy (loops are obviously more finicky than a one wire end-fed).

The great thing about this loop is it’s resonant on 20 and 10 meters, and it’s quite easy to tune on 17, 15, and 12 meters with pretty much any ATU.

Fast-forward to Saturday, October 14, 2023 when Joshua and I were participating in the W4G SOTA campout in north Georgia…

Yonah Mountain (W4G/NG-048)

It rained cats and dogs Friday evening into Saturday morning.

Fortunately, most of the rain stopped by the time I surfaced that morning.

Joshua and I ate a quick breakfast, grabbed our SOTA backpacks, then drove to the Yonah Mountain parking area/trailhead.

Last year, we also activated Yonah Mountain as well, but underestimated the hike and our timing. We ended up being a good hour or so late to our SOTA evening potluck. This time, we were keen to spend more time on Yonah Mountain and get back to the campsite in plenty of time to join everyone for dinner (and share exaggerated stories about our SOTA adventures).

Last year, we arrived at the trailhead and it was parked full. This year, even though we arrived in the morning and even though it was incredibly foggy/misty, it was still quite full!

Yonah Mountain is an incredibly popular destination.

Another fun fact about Yonah: it’s not really a beginner’s summit despite the fact it’s so popular with hikers and runners.

It offers up proper elevation change, gnarly trail portions, steep inclines, and about four miles of trail round trip. Although not an incredibly long hike, it’ll give you more of a workout than you might think first blush.

We reached the summit in due time and set up our stations about 30 meters apart.

The whole time, I was also monitoring the partial solar eclipse we were having that day.

I brought along some solar eclipse glasses and ended up sharing them with everyone on the summit. It worried me seeing so many young people staring at the sun with only their sun glasses or even–gasp!–with the naked eye. (I mean, weren’t they paying attention in science class–?) 🙂

At one point in the activation during the actual peak of the partial solar eclipse, I left the radio and did a little more sun-gazing. Continue reading SOTA DX with a 20 Meter Delta Loop on beautiful Yonah Mountain!

KX2/AX1 Travel: Two Quick POTA Activations on the South Carolina coast!

SC Coast: A Postcard Field Report

When life gets busy (it is now) I don’t always have the time to produce a full field report. This is especially the case when I have, not one, but two field reports and two activation videos!

This “Postcard” field report covers two activations on the evening of October 2, 2023. At the time, I was staying on the coast of South Carolina for a night. (You might recall I activated Lee State Park with friends earlier that afternoon.)

Instead of producing two full-format field reports, this will be one report with two activations.

Note that I used the same gear for both of these activations.

Gear:

Note: All Amazon links are affiliate links that support QRPer.com at no cost to you.

Myrtle Beach State Park (K-2907)

I arrived at my hotel in South Myrtle Beach around 17:30 local. I checked in (thank you, Hampton Inn for the room upgrade!), dropped off my bag in the room, then immediately made my way to what turned out to be my first of two parks.

As I purchased my park ticket at the entrance gate, the park employee told me that my ticket would also allow me into Huntington State Park (just 20 minutes down the road) until end of day.

At that point, I had no intention of hitting a second park…but of course I just couldn’t resist the temptation of that free entry!

I know that some South Carolina parks are picky about antenna deployments, etc. so I stuck with my low-impact, low-profile combo of the Elecraft KX2 and AX1. It doesn’t disturb the trees, the ground, nor any park visitors.

I parked at the pier and set up at a picnic area under the trees nearby. Early October is very much off-season on the coast, so the park was relatively quiet.

There was no one else in the picnic area, so I had the place to myself. Continue reading KX2/AX1 Travel: Two Quick POTA Activations on the South Carolina coast!

DITs and DAHs from Alcatraz

DITs and DAHs from Alcatraz

by Leo (DL2COM)

San Francisco Radio Diary – Part 1

“No way!” I said to myself when I saw that Alcatraz Island is an official Parks-on-the-air (POTA) reference which has only been activated four times by two operators.

Alcatraz Island
Alcatraz Island / POTA reference K-7888 & 2fer K-0647

It surprised me that such a historically relevant site hasn’t seen more ham radio activity in the past – or maybe it has, just not for POTA. I then got super excited as I was packing my bags for San Francisco.

I have missed this foggy beauty so much and it has been many years since I visited the city. I won’t bore you with the ordeal of our travel but it included canceled flights, multiple delays and rescheduling via Berlin and London the next day due to a hostage situation at Hamburg airport. So our already super short trip of 4.5 days shrunk into a good 3 days in SF. So which things to cross off the schedule now? It was clear that this unfortunate situation was certainly not going to eat into my activation budget. Hell no!

I admit since watching “The Rock” (1996) Alcatraz has always been a place of mystery and fascination to me. Those who are interested in reading more about the former fort, military prison and federal penitentiary can do so here.

After I learned that it was also a CW ATNO I instantly said: “Done deal. The ink is dry. I will activate with morse code in the shadows of Sean Connery, Nicolas Cage and Ed Harris”. Of course I would do it plain vanilla style throwing good ol’ wires in trees and staking pointy things in the ground. Yeah right. Sometimes passion does tend to carry you away a wee bit so a little later I gathered myself and started doing some research.

K-7888 log so far

Apparently the first POTA pioneer on Alcatraz was KC1MIJ who managed to get 5 QSOs in with an FM HT in July 2021. I’d say that’s pretty awesome for a location almost as low as sea level. The first successful activation was done on December 3rd 2021 by Elizabeth “Liz” N6LY and her husband Kevin K6YD. Since then both of them had only been back one time in December 2022 for another day to achieve a whopping cumulative 761 phone QSOs in only two days of total operation. Wow! What an achievement. No other hams have tried to activate Alcatraz since.

National Park Service Badge
The entire island is under management of the National Park Service (NPS)

I didn’t hesitate to write Liz an email and ask about her experience operating from the island as I knew it would probably require some preparation. The POTA website also stated that a permit from the National Park Service (NPS) is required. Luckily Liz replied swiftly with a lot of helpful information and I am very thankful for the email exchange. She specifically pointed out that it is in fact necessary to get a permit (even for simple HT activity) and that she had already applied in July for another day activity this coming December. They are still waiting to hear back from NPS’s office so it does seem quite hard to get approval for a “proper” activation. It is understandable that folks there want to have control over an organized operation where antennas, 100w radios, chairs etc. might need to be set up. With so many tourists visiting each day they also want to make sure that any activity doesn’t interfere with their core business especially on weekends.

Since I really didn’t want to spoil any of the hard preparatory work with NPS that Liz and Kevin had done for the ham radio community as well as respect local processes I wrote an email to the Alcatraz Rangers Office asking for a permit only a few days before my arrival. I knew it was a long shot and highly unlikely that they’d get back to me in time. So I called them every morning and afternoon the days after to follow up but was unsuccessful reaching them on any channel. By that point I had almost given up. However there were plenty of other options for activations so I had a blast in/on several SOTA/POTA references in SF which I will report on later.

Alcatraz Island Ferry
Alcatraz Island Ferry @ Pier 33

On our last day I woke up and thought “Man, I can’t just leave the Bay Area and not activate Alcatraz.” Since one of my appointments got canceled short-term I didn’t think long, jumped on an Uber to Pier 33 and off I was (yeeeees, online tickets were still available).  Continue reading DITs and DAHs from Alcatraz

Field Kit Gallery: KM4CFT’s Elecraft KX2 Go Kit

Many thanks to Jonathan (KM4CFT) 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, check out this post. Jonathan writes:


Hi Tom,

I thought I would share the two go kits I have [check out the QMX kit here]. I tend to customize my equipment and supplies before I go on a POTA or SOTA outing but I keep these for the rare occasion when I want to grab a radio real quick.

The Elecraft KX2 Go Kit

A bit more standard fare for elecraft KX2 owners. I use this kit the most often since the KX2 is rugged and incredibly well suited for field activations.

The kit contains 2 antennas: a Tufteln 28.5′ speaker wire antenna on a custom designed winder, and the Elecraft AX2 with all the fixings (mini tripod, adapter, bipod).

I keep 2 CW paddles on me: the KXPD2 and a retractable paddle designed by K6ARK.

I have 2 microphones: the Elecraft microphone and a mini microphone designed by K6ARK.

Having multiple options lets me operate in just about any situation/position.

For accessories, I have a cheap pair of earbuds, a power cable, and BNC to SO-239 adapter, 6 feet of coax and a BNC binding post.

Hopefully this information is useful to you and your readers!
-Jonathan KM4CFT

Field Radio Kit Gallery: VE6VID’s KX2 SOTA Kit

Many thanks to Malen (VE6VID)Canada’s first SOTA Double Mountain Goat – 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.


Hello Thomas,

After being prompted by Vince (VE6LK) I am sending in my humble lightweight HF setup. The core of the setup is an Elecraft KX2 with a few goodies bolted onto it.

My station consists of KX2 with tuner, end plates with lexan cover, external 4s LiPo (1100mah) battery, power cable that is fused and has switched diodes (voltage reducer), an Amazon speaker and earbuds, a modified UV5R microphone (I’m an SSB guy for now), and a homebrew 65 ft EFHW. It’s all carried in a large water bottle case by Condor and weighs in at just under 3lbs. That case also fits an Icom IC-705 or the Elecraft KX3.

I have approximately 300 SOTA activations with this along with various masts. These activations range from easy 10 pointer strolls in Arizona and Manitoba to strenuous (over 1000 metres of gain) 4 pointers in the Alberta Rockies along with summits in VE5, VE7 lands tossed in as well.

By using old Altoids tins for storage for earbuds and the mic, everything fits into the case with the antenna laying on top. I ended up doing some trimming of the kite winder to fit with ease on top of the case.

Here is the basic setup laid out.

The battery will last me for two ten to fifteen minute activations without having to switch the diodes out of line.

When solo activating in VE6 land, I use the Amazon external speaker to make noise to let the local four legged critters know I am there.

After a few years of using a dipole on treed summits, which at times can be troublesome to setup, I built a 49:1 EFHW. When using the EFHW I typically set is up as an inverted V with a mast, invert L with trees. The antenna is a homebrew 49:1 using a non-standard size type 43 toroid, SOTAbeams antenna wire 65 ft long, bulkhead male BNC for connecting directly to the radio.

Trying to go compact, not necessarily light, I ditched the Elecraft mic for something with a small footprint, a mic that started life as an UV5R mic / earbud combo from Amazon . By replacing the cable with a Walmart 3.5mm TRS cable and adjusting the menu on the radio, it works great.

Take care,  Malen Vidler, VE6VID


Vince’s notes: Malen is Canada’s first SOTA Double Mountain Goat. You can check out his YouTube channel here. He is soft-spoken and deeply knowledgeable on SOTA and Amateur Radio. He is one of my go-to people when I don’t understand something in these areas.

Kneeboard SOTA: INSANE DX with my smallest, most compromised antenna!

I walked out of my front door on the morning of Friday, September 29, 2023, knowing I was going to do an activation, but I had no idea where that might be.

I certainly had no idea it would be one of my most memorable activations ever–!

I knew I had a five hour window to play radio somewhere not too far from my daughters’ classes near the Asheville Airport.

I really wanted to do a SOTA (Summits On The Air) activation, but I’d pulled a muscle in my back and was nursing it a bit.  I knew that an invigorating hike on a long, gnarly trail was not really in the books.

After dropping off my daughters, I sat in the parking lot running through the activation options in my head. There were 5 or so parks within an easy drive. I knew a POTA activation probably made the most sense since it wouldn’t require hiking or carrying a heavy pack.

Then again, I really wanted to do a SOTA activation–the weather was so amazing, I didn’t want to miss out on an opportunity to take in a summit.

I decided that if I took a minimal amount of gear and activated an “easy” summit, then maybe I could get away with a little SOTA without hurting my back. I thought this might be the perfect excuse to do a SOTA activation pairing my Elecraft KX2 and AX2 antenna. I had a lightweight chair and my kneeboard, so in theory, I could set up anywhere on the summit with my entire station on my knee.

Next, I only needed to find the right summit and one came to mind almost immediately…

Black Balsam Knob (W4C/CM-005)

The last time I activated Black Balsam was with my buddy, Monty, in 2021. I remembered that it was an easy hike with stunning vistas of Pisgah Forest (K-4510) and the Blue Ridge Parkway (K-3378).

This it the Mountain Ash (Sorbus Americana) with bright red fruit!

I drove 55 minutes to the trailhead and was happy that there weren’t too many cars in the parking area yet that morning. Black Balsam is one of the most popular summits on the Blue Ridge Parkway, so sometimes it can be a challenge to find a parking space…especially with stunning weather like this!

The hike was very pleasant and my GoRuck GR1 backpack was pretty light.

I knew I’d chosen the right summit hike.

The views from the Art Loeb Trail do not disappoint. (Click images to enlarge.)

In fact, if anything, I wish this hike were just a little longer because I enjoyed the scenery so much!

It’s only 3/4 of a mile one way, so it goes by quickly. Still… it’s why I chose this particular summit. I knew it would be gentle on my back (and it was).

Once I reached the summit, I started searching for a spot to set up. There were quite a lot of folks on the summit that morning, so I looked for a site just slightly off of the main trail.

I found an area on a side trail that provided just enough room to set up my folding chair without disturbing the flora.
Continue reading Kneeboard SOTA: INSANE DX with my smallest, most compromised antenna!

Bob pairs the KX2 and AX1 for ultralight travel-friendly SOTA in Greece

Many thanks to Bob (K4RLC) for the following guest post:


Field Trip to Greece: September & October 2023

 Bob (K4RLC)

A trip to Greece had been on the bucket list for my YL Alanna K4AAC and me for several years. In fact, we had to postpone the trip twice due to COVID. An opportunity arose to take a unique trip to Greece with the University of North Carolina – Chapel Hill, rather than a more touristy cruise. It’s always good to have fellow Tar Heels around, to share experiences.

This trip involved a few days in Athens, seeing the classic archeologic sites such as the Parthenon and the Acropolis, as well as exploring the packed downtown markets, such as Plaka and Monasteraki Square. Then the group would travel to the South of Greece on the Peloponnesian Peninsula staying in a fishing village called Gytheio, founded in the 5th Century BC, and port to the Spartan warriors.   From there, there would be day trips to historic sites. These included a trip to Areopoli, where the Greek revolution against the Turks started in 1821. Another trip would be to Monemvasia, an island fortress founded in 50 AD.  Other trips would be to Mystras (the last outpost of the Byzantine Empire) and ancient Sparta. On the return trip to Athens for departure, the tour would stop in Ancient Corinth, which had been civilized by the Greeks by the 8th century BCE and where the Apostle Paul preached ethics to this Sin City of ancient Greece.

As I had taken the KX1 and KX2 to various places overseas, I, of course, wanted to operate portable radio  in Greece. Past treasured memories included enjoyment operating with the KX1 on Suomenlinna Island, in the Bay of Finland, and with the KX2 in various Caribbean sites, including St. Lucia in 2019.

One of the first things I did was to consult the SOTA Summits Database for peaks we might be near. In the Peloponnesian (PL) region, there are about 180 sites, many of which had never been activated. Once we got there, we found out why. The peninsula is extremely mountainous, with steep barren peaks up to 4000 feet, rising quickly from the shore. In fact, talking with Cristos, our guide in Areopoli and a local young man, he said that he and his friends would hike about 6 to 8 hours to a summit, then spend the night in a cave before returning home. Obviously, this would not fit in with our somewhat rigid tour schedule.

Olive tree grove & Taygetos Mountains
SOTA map of Peloponnesian Peninsula with Gytheio circled

I was very excited to see that Mt. Mystras, where we would visit, also was a SOTA site (SV/PL-012), as well as a UNESCO World Heritage Centre.

I found it curious that Mystras had not been activated since 2017. I found the name of the last ham who had activated this site, and took a chance of sending him an email at his QRZ address. I was very pleased to get a nice reply from Cristos (a common name in Greece, named after Saint, or “Agios” Christopher), who said that he lived in the north of Greece some distance away and had not been back. I asked him if he had to seek permission to activate there. Cristos said they just didn’t ask anybody, but that I should be “careful of the guards” as I’m not a local.

I took his caution under advisement and reached out to the Greek Radio Union. I received a very nice email from Takis, Vice President of the Greek Radio Union. He advised me that my call sign on the Peloponnesian peninsula would be SV3/K4RLC/P. That is, in Greece the geographic location of operation still matters, while it doesn’t in the United States. And I also should use the designator P, identifying as a portable station. Takis went on to write that radio operation in many the archaeological sites is now “prohibited” by the Greek Ministry of Culture and Antiquities. I filed that away for consideration.

The tour was culturally enriching, taking in the incredibly long and complex history of each ancient site we explored. Just as memorable, we were extremely well fed with local cuisine, including fresh fish caught that day, especially eating by the water in Limeni on the West Coast of the Mani Peninsula. I have to admit we ate spanakopita at least once for 10 consecutive days (it’s even served at breakfast)!

The trip to Mystras also included a trip to ancient Sparta, civilized in the 6th and 5th centuries BC. We were fortunate to have an archaeologist who is currently excavating Sparta as a guide to the fascinating history here. On the trip to Mystras, three miles to the west of Sparta, the bus stopped at the tavern where we would return to eat later that afternoon, for a pre-tour bathroom break. Bathrooms are few and far between in ancient sites, and most of our group could be considered geriatric and needed proximity to a bathroom. Mystras  is a 682 meter sharp  peak over the town (see photo). Continue reading Bob pairs the KX2 and AX1 for ultralight travel-friendly SOTA in Greece

Field Radio Kit Gallery: KF6IF’s Elecraft KX2 Field Radio Kit with Homebrew AX1

Many thanks to Phil (KF6IF) who shares the following article about his portable field radio kit which will be featured on our Field Kit Gallery pageIf you would like to share your field kit with the QRPer community, read this post. Phil writes:


Hi Thomas,

As requested here is my Elecraft KX2 Field Kit:

Antenna Gear:

  • AX-1 homebrew clone
  • AXB1 Whip BiPod
  • 90 degree BNC connector
  • PL259 / BNC connector
  • 13′ ground wire with lug
  • K6ARK Winder  with two 25′ speaker wires, banana plugs, and plastic carabiners
  • Double Banana Jack to BNC female Adapter

Operating Accessories:

Coffee, QRP, & Question: Is any field kit more portable and versatile that Elecraft’s KX2/AX1 combo?


Lately, I’ve been kitting out another fully self-contained field radio kit that would be small enough to fit in my EDC (everyday carry) laptop bag–something super compact.

I’ve been getting some great ideas from those of you who have added your kits to the Field Radio Kit Gallery.

[By the way, if you’ve submitted your kit to the gallery and haven’t seen it yet, note that I’m posting these in the order received and there are many in the pipeline!]

I’ll likely build my EDC field kit around the Elecraft KX1 or the Mountain Topper MTR-3B, then pair it with a good wire antenna.

My EDC laptop bag: the Tom Bihn Stowaway

But this process got me thinking: if money was no object, and I wanted the most compact and versatile multi-band field kit, what radio and antenna system would I choose?

My answer? A kit built around the Elecraft KX2 and AX1 antenna.

In my experience, the KX2 AX1 combo is hard to beat. It’s compact, effective, low-profile, and you can set it up pretty much anywhere.

Let’s explore my reasoning here keeping in mind–in my world–this is a very deep rabbit hole to go down. I’ll do my best–no promises–to keep this as concise as possible:

Compact, Low-Profile, Self-Supporting, and Simple

Here are all of the components of my typical KX2 AX1 field kit:

This is all that is needed for a field activation.

And if you’re an SSB operator? You don’t really need a microphone because one is built into the KX2 (that said, I’d suggest you build a compact mic if you plan to do a lot of SSB operating).

If I wanted to make this kit even a bit more versatile? I’d add a kneeboard to the list. This gives one the ability to operate without a picnic table.

I recently published a video showing how the KX1 and AX1 can fit on a kneeboard.

Portable and Versatile

What makes this field kit so portable is that the KX2 is one of the most compact general coverage HF transceivers on the market.

It’s certainly the most compact (at time of posting) when you realize that two important components–the battery and ATU–are internal options.

The AX1 antenna is also incredibly compact–it comes apart in such a way that no one component is longer than about 6 inches. What you see in the photo above is the entire radio and antenna system.

Yes: A Compromise

Sure–and let’s get this out of the way right up-front–the AX1 is a compromised antenna, and being a massive fan of simple wire antennas myself, I know a properly deployed wire in a tree is going to provide better gain each and every time.

Also, people who live in more remote parts of the world–say, Hawaii, the Yukon, or Perth, Australia–where the amateur radio density is sparse within their propagation footprint, the AX1 will not be as productive as it is for me here in the eastern half of North America. Continue reading Coffee, QRP, & Question: Is any field kit more portable and versatile that Elecraft’s KX2/AX1 combo?