Category Archives: Accessories

Accessories, Field Radio Kits, News, Portable, POTA, QRP, QRP Radios, Reviews, Videos

Elecraft KH1 Tabletop Mode: The new KHRA1 Right-Angle Adapter makes for a super-portable POTA machine!

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It’s funny how sometimes one small accessory can have a huge impact on a field radio kit.

When I first learned about the Elecraft KH1 (basically, the day I was invited to join the volunteer testing group), I felt like Elecraft had designed my ideal QRP radio. The KH1 is super compact, weighs 13 oz completely loaded, covers my favorite bands, and has features I would expect in much pricier radios. It reminded me of my beloved KX1, but even more portable with more features.

The KH1 caters to handheld or pedestrian mobile operating–at least, that was the overarching design objective. It accomplishes this amazingly well. It’s so easy to operate handheld, and there’s nothing else quite like it on the market. I suspect that when others copy the design (I’m sure they’re already doing so–!) it won’t be as versatile, functional, and lightweight.

At the end of the day, though, I feel like I’m only using the KH1 pedestrian mobile about 30% of the time I have it on the air. Of that 30%, I’d say that only 10% of the time I’m pedestrian mobile while activating, and 20% of the time I’m doing little impromptu radio sessions in parking lots, ballparks, while visiting family, and even on my own mountain property.

While handheld operating is simply a game-changer, I knew I wouldn’t do this 100% of the time with the KH1. It’s for this reason that my very first bit of proper KH1 feedback to Elecraft, well before I had my hands on a prototype, was that a right-angle adapter for the whip antenna would truly round out the KH1’s field prowess.

This would basically give my KH1 the same functionality of my beloved KX2 and AX1 antenna combo, but in an even more portable package.

Turned out, Elecraft already had a right-angle adapter on the design board!

Fast-forward to present day…

Last week, Elecraft sent me a prototype of the right-angle adapter to test and evaluate. They’ve given it the model number KHRA1.

Full disclosure: Elecraft also gave me permission to post a video and article about this new accessory even though (at time of publishing) it’s not even showing up on their website. I will, however, link to it here as soon as Elecraft makes it available. This is an item I would otherwise have tested in private–thanks, Elecraft!

The KHRA1: Small accessory, big impact!

Illustration Source: Elecraft KHRA1 Instruction Manual

The KHRA1 is a simple adapter. Other than metal attachment hardware, most of it is lightweight and 3D-printed from a durable material (I assume the same material they use in the KH1).

Attaching it to the KH1 is very easy.

First, you unthread the large metal thumb nut from the KHRA1. You will need to hold together the remaining KHRA1 components (legs and attachment bracket) so that they don’t come apart before you attach them to the KH1. This is actually pretty easy to do, but users should know to follow the KHRA1 instruction sheet. If these parts fall apart in the field, it might require a bit of searching the ground for the pieces.

You simply thread the large thumb nut onto the KH1’s whip antenna antenna port, then thread the rest of the KHRA1 bracket/legs onto the large thumb nut.

Check out Elecraft’s illustration:

I then position the KHRA1 legs as shown above, then tighten the KHRA1 adapter so that everything is secure.

It’s super simple to do, and you can see this process in my activation video below.

Speaking of an activation…

On Saturday, March 2, 2024, (yes, only two days ago) I had my first small window of opportunity to squeeze in a POTA activation and test the KHRA1.

That day, my daughters and I had a number of errands to run, then a three-hour round-trip drive to pick up my wife. We were on a very tight schedule, but I had a 30-ish minute window of opportunity to fit in some POTA radio therapy.

I set my sights on the easiest-for-me-to-hit POTA site on the Blue Ridge Parkway: the Folk Art Center.

Amazingly, I discovered that morning, that the KHRA1 fits in my Pelican M40 Micro case along with my KH1, whip, counterpoise, key, spare N6ARA key, and earphones.

With the KHRA1, this means my M40 field kit can do both pedestrian mobile and tabletop operating. Woo hoo!

The weather that morning was simply glorious. A very wet front swept through the previous day leaving behind clear skies and warm temps. Frankly, it was a bit odd activating without wearing a jacket or hoodie.

Gear:

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

On The Air

Setting up was quick and easy, even though this was my first time using the KHRA1 in the field.

I hopped on the air and started calling CQ. Once spotted (for some reason the RBN auto-spotting feature wasn’t working again), the contacts started flowing in.

I worked a total of 18 contacts in 16 minutes. It hardly gets better than that for a CW activation!

I had to call QRT after my 18th contact. Even though I had a 30-minute window to POTA, nearly 14 minutes of that was taken up with my intro and summary for the activation video.

I called QRT with a small pileup still in place. I really hate doing that, but I had a schedule to keep!

QSO Map

Here’s what this five-watt activation with a 4′ telescoping whip antenna 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.

A super-portable, low-impact POTA machine!

The KH1 works amazingly well as a tabletop radio when combined with the KHRA1 adapter.

At the end of the day, the KHRA1 is a very simple piece of hardware, but it effectively transforms the KH1 from a handheld radio to a tabletop.

Of course, I’ve used the KH1 numerous times with wire antennas in a tabletop configuration (I’m a massive fan of wire antennas) but the ability to use the 4′ whip antenna and internal KH1 loading coils means that I can operate anywhere I have a surface.

As I mentioned in a previous post, in some cases, low-impact, and low-profile are key to positive park relations.

Herein lies the thing I love about my KX2/AX1 pairing as well. It’s just with the KHRA1, the KH1 makes for an even smaller, lighter-weight field kit.

Any negatives? The only one I’ve come up with is that the KH1 is so lightweight that I realize I need to carry a small piece of shelf liner (something like this) to provide the KH1 with a bit more grip on a slick park table, especially those composite ones.

Again, I will update this post when Elecraft announces KHRA1 pricing and availability.

Thank you

I still can’t believe the entire kit fits in this small case. Even when I put the KHRA1 thumb screw on backwards!

Thank you for joining me on this quick little tabletop activation!

I hope you enjoyed the 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 an amazing week ahead and play some radio!

Cheers & 72,

Thomas (K4SWL)

Accessories, Kits, News, Portable Power

HRWB DC Distribution Panel Kits in stock at Digikey!

2 Comments

Many thanks to Mike (KG4MTN) who notes:

Good morning Thomas,

I did not know if you are aware, but Digikey has in stock about 67 HRWB 5-port dc power strip kits. I ordered one last night, they are $49.94 plus tax/shipping. Apparently these have been out of stock for some time, I am glad to see them available.

72 and God bless,
Mike Serio
KG4MTN

Thanks for the tip, Mike! These will sell out quickly, so grab one while you can, I say! I love mine.

Click here to purchase one via DigiKey!

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

Exploring the Mountains-to-Sea Trail: QRP POTA with Hazel and a New KX1 Kneeboard!

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On Friday, January 5, 2024, I looked at Hazel and could tell that, despite the chilly temps, she wanted to go on a late afternoon hike. I did, too, for that matter and why not combine the hike with a POTA activation?

In addition, we were expecting a winter storm to move in that night, so hitting the trail in advance of the snow and ice seemed to make sense.

Before I could get my boots on, Hazel was waiting by the car door to jump in.

Mountains-to-Sea State Trail (K-8313)

One of the closest long trails near my QTH is the Mountains-to-Sea Trail (MST).

At 1175 miles long, the MST stretches from the Outer Banks of North Carolina to the Great Smoky Mountains (see map above).

I can actually hike to the MST from my QTH, but it takes a good hour and half to do so. It’s much easier to drive to one of the numerous nearby trailheads, and that’s exactly what Hazel and I did. I drove to one of my favorite Blue Ridge Parkway POTA spots where a short manway connects to the MST.

Hazel was so excited to hit the trail. (I was, too.)

At the end of the day (because, it was nearing the end of the day) we couldn’t hike for long if I planned to also complete a POTA activation. Sunset was at 5:29 PM local and I didn’t want to pack up and hike back in the dark.

That said, if I needed to hike back in the dark, I could have because I never go on a POTA or SOTA activation without a fully-charged headlamp. FYI: I was packing a NiteCore NU25 (affiliate link).

I started my action camera and captured the last bit of hike before Hazel and I found a great spot to set up. There were enough trees around to deploy a 40 meter EFHW and a relatively flat spot to set up my Helinox chair and KX1 station.

Since much of this section of the MST is on the Blue Ridge Parkway grounds, I checked quickly to make sure my operating site would qualify as a two-fer with K-3378.

I opened the Parceled App on my iPhone to confirm that my site was indeed on Blue Ridge Parkway property..

A KX1 Kneeboard!

If I’m being perfectly honest, I had an ulterior motive with this trailside activation: I was eager to finally put my new KX1 kneeboard into use! Continue reading Exploring the Mountains-to-Sea Trail: QRP POTA with Hazel and a New KX1 Kneeboard! →

Accessories, How To, Morse Code, News, Portable

Emily’s simple way to attach a magnetic key to your field clipboard

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Many thanks to Emily (NI1Q) who writes:

For those of us not fortunate enough to own an Elecraft KX series or KH1, I have a project that is a quick and dirty way to anchor your magnetic key to a clipboard. All that is needed is a fender washer from the hardware store and a hot glue gun. The best (ie, most magnetic) washer was the one marked ‘ALB’, but just take your key with you and try out what they have. If you find one you have to slide off, that’s getting there.

1) Affix the washer to the clipboard with hot glue. I recommend heating the washer with a heat gun first so you have time to reposition it if desired.

2) Put the washer on your key, and the glue on the washer. Position and press, and avoid moving it around while the glue cools (about a minute). If you do need to reposition it, remove the key, heat with the heat gun, replace the key and reposition.

I’m right handed so the key is on the right so I don’t hit it when I’m logging.

———

In case you are wondering about the chip in the carrier, I am working on a cordless interface between the key and a CW decoder for the IC-705. The plan is it will use the IC-705’s bluetooth connection to send audio to a Pi Pico for decoding, and then it will send back dits and dahs to the keyer. It should be able to be powered by a lightweight 3.7v rechargeable battery. This is in the early stage, but is showing promise.

Cheers,
Emily

Accessories, New Products, News

New Chameleon Products

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Many thanks to Don (W7SSB) who writes:

We have several new products we just released. Please look at out website: www.chameleonantenna.com

There are several more products coming soon !

Thanks for the tip, Don!

Accessories, News, POTA

André shares a CL program he created to send emails via ADIF files

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Many thanks to André (VE2ZDX) who writes:

Hi Thomas,

I have written some pieces of software to automate the sending of emails to callsigns in adif files. I wrote them to help myself and they work very well. One of them I’m making publicly available since it’s very simple and, although it’s pure command line, I believe most hams would be able to use it.

In this video I explain it and teach how to customize it to your needs:

https://youtu.be/zV5nxNsP8MY?si=-a99LDDrXYeDCMLO

This software will send one email per callsign in the adif file you choose. It can be used for many things but it fits very well the use case where you record a POTA activation and want to send the link of the video to everyone in the log. It’s specially ideal for POTA because you can download the log per activation from the POTA website =]

The motivation to create this software comes from the fact that I don’t use paper QSL cards anymore, instead I record the QSO and use YouTube as video storage. And since I have it on YouTube already, why not share with the other ham? They love it!

Also, recordings (audio or video) of your radio activities becomes so as they age! See an example. This is the first time tried QRP on the ham bands:

https://youtu.be/50yzsZfas30?si=_jmr-D9l5TkGR1h5

Just from this recording I learned so many things, such as the speaker I had sucked! You can hear much more in the recording than what I could hear in that session heheh

If you want feel free to share this software with other operators, I’d be happy if it helped more people publish real ham radio content on YouTube, like yours.

73

Thank you so much for sharing this, André. I’m sure there are others who record their activations on video and will benefit from your command line tool! 

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:

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

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)

Accessories, Field Radio Kits, Grab And Go, News, Portable, QRP

Seal the Deal: Exploring the Best Watertight Cases for the Elecraft KH1

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Well before I actually had a KH1 in hand, I noted the dimensions of the radio from the preliminary spec sheet and started exploring the world of compact, watertight cases.

Why a watertight case?

This Pelican 1060 case houses a complete Mountain Topper MTR-3B field kit including a throw line and throw weight.

I like to have a watertight case option for pretty much any QRP radio I take on SOTA (Summits On The Air) activations.

It’s reassuring to know that if I stumble and fall on my pack, the case will prevent me from crushing the radio. In addition, a good case keeps my radio dry if I get caught in heavy rains or (even more likely) slip on a rock and fall in a river/creek. In fact, many of these watertight cases will float with the KH1 inside so if it goes overboard while kayak mobile, it’ll be easy to retrieve. (For the record: I don’t want to test this theory.)

With one exception, all of the cases I explore here cost somewhere between $25-$40. I consider this cheap insurance for a $500-1100 radio.

My requirements

I searched a few manufacturer’s websites and tried to find interior dimensions that would accommodate the KH1 and all protrusions: 1.4”H x 2.4”W x 5.6”L (3.5×6.1x14cm).

I primarily searched two watertight case manufactures: Pelican and Nanuk. I trust products from both of these companies and both offer compact watertight cases. There are more manufacturers out there, but but both of these companies offer quality products. Pelican cases are even made here in the USA. Many Nanuk models are made in Canada, but not their Nano series included here.

In the end, I was searching for two case sizes:

  1. A compact case to only hold the KH1 “Edgewood” package: the KH1 with paddle attached, Cover/Logging Tray, Whip Antenna, and 13′ Counterpoise. There also needed to be enough room for a pair of earphones.
  2. A slightly larger case that would accommodate the KH1 “Edgewood” package along with earphones, a throw line, throw weight (or rock sack), and a simple random wire antenna.

The idea with the second, slightly larger, case is that it would give me the option to use a wire antenna during an activation and would be fully self-contained (meaning, everything needed for the activation included).

The contenders

I took a total of eight cases to a local park and spread them out on a picnic table for this test. This made the process of comparing the cases quite easy. I actually made a video of this whole process–you’ll find the video further below in this post.

Here are the cases I tested in the order you find them in the video (any Amazon links here are affiliate and support QRPer.com):

Hint: many of these cases are available in multiple colors–prices can vary greatly based on the color. A red case might cost as must as 30% less than a black case, for example.  Always check the pricing of color options, but make sure you don’t accidentally select a different size case in the process (this is easy to do).

Again, you’ll see a lot of detail in the video below, but let’s look at each of these cases with my notes: Continue reading Seal the Deal: Exploring the Best Watertight Cases for the Elecraft KH1 →

Accessories, Digital Modes, FT8, News, QRP

BG6LH Designs a Board for Integrated Yaesu FT-817/818 FT8 Operation

10 Comments

Many thanks to Cao (BG6LH) who writes:

Hi, Thomas!

I would like to share my QRP FT8 kit for Field Operation.

A long time ago, I was seeking the most lightweight QRP kits for FT8 field operation. My goal was to have just one radio, one antenna, one phone, without too many cables, boxes, etc.

Finally, I designed a PCB. It is a Bluetooth DIGI Adapter and can be mounted on the rear panel of my FT-818.

Just plug it to the DATA and ACC jacks. It can be powered by ACC jack’s 13.8V Pin.

It works well with FT8CN, an android FT8 app.

Now, my dream has come true!

My Antenna was a so-called GAWANT, designed by JF1QHZ, I guess it’s a simple Vertical EFHW. I built it with a 1.2 meter rod.

It’s working on 7~28MHz bands, not very efficient, but so small and portable.

For FT8 QRP POTA, field operation, all of these components can be put in a small bag, and deployed in minutes.

I shared my PCB design on Github. If anyone wants to modify it, you are welcome to do so!

https://github.com/BG6LH/FT-81x-BT-DIGI-Adaptor

Thank you for sharing this, Cao. This is absolutely amazing and an incredibly clever design! I suspect a lot of FT-818/817 enthusiasts will make this same build via your design!

Thank you for reaching out and for sharing your work with the QRP community! 

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

Pairing the Yaesu FT-817ND and Chelegance MC-750 at South Mountains State Park

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After completing a lively little POTA activation at Lake James State Park (K-2723) and then Table Rock Fish Hatchery (K-8012) on the morning of Monday, July 31, 2023, I decided to squeeze in one more POTA adventure on what became a mini rove.

Since nearby Tuttle Educational State Forest is closed on Mondays in the summer, I chose to visit South Mountains State Park (K-2753) instead–it was only a few minutes further afield than Tuttle.

After leaving Table Rock, I picked up a quick lunch in Morganton and drove to the main entrance of South Mountains and set up at the equestrian picnic area.

South Mountains State Park (K-2753)

 

The weather that day was beautiful and so was the drive.

I decided to deploy my Chelegance MC-750 this time, just to shake things up a bit. If you know me, when I do little roves like this, I typically like to use different radios and/or antennas at each site.

I paired the MC-750 with my Yaesu FT-817ND. My reasoning for picking the ‘817 was because I could use the SO-239 connection on the back of the radio. The new cable assembly/feedline I was using had PL-259s on each end.

Speaking of the new assembly, at the Dayton Hamvention this year, I popped by the ABR Industries booth and Chuck gave me (full disclosure–at no cost to me) a new product to test in the field: a 20 foot PL-259 to PL-259 assembly made with their ABR240-UF cable and with 5 in-line ferrites. What makes this cable unique is that it sports a bright orange flexible webbed jacketing which makes it very easy to see on the ground.

They’ve been informally calling it their “POTA cable.” I immediately knew why this would appeal to POTA ops: one of my constant fears is that someone will unknowingly trip on my feedline while I’m in the middle of an activation. Black coax cable on the ground is very difficult to see (I’ve even tripped on my own lines)–this high visibility jacketing makes cable very conspicuous. Just check out the photos above. Continue reading Pairing the Yaesu FT-817ND and Chelegance MC-750 at South Mountains State Park →