Tag Archives: KX2

SOTA in the Clouds: Pairing the Elecraft KX2 and MPAS Lite for brilliant QRP fun on Craggy Dome!

Although I live in the mountains of North Carolina and am surrounded by SOTA summits, it’s much easier for me to activate a park rather than a summit.

Parks can be quite easy: find the park on a map, drive through their main entrance, find a good picnic table to set up, and next thing you know you’re on the air! Of course, wildlife management areas and game lands can be more tricky, but typically you can drive to the activation site.

Summits–speaking as someone who activates in North Carolina–take much more planning. If it’s a new-to-me summit, I typically need to:

  1. find the GPS coordinates of the true summit
  2. map out the drive to the trail head
  3. read through previous activation notes (if they exist) to find out
    • what type of antenna/gear I might pack
    • and any notes I might need to find the trail or bushwhack to the true summit (quite often published, well-worn trails don’t lead to the actual summit)
  4. look up the trail map and make sure I have a paper and/or electronic copy
  5. pack all needed gear for the hike, activation, and emergencies
  6. sort out the time it will take to travel to the site, hike the full trail to the summit, activate, and return home

If you ask most any SOTA activator, they’ll tell you that the planning is part of the fun.

It really is.

One summit I’ve had on my activation list for ages is Craggy Dome (W4C/CM-007). Out of the higher summits in this region, it’s one of the easier ones for me to reach from the QTH. In fact, as with Lane Pinnacle, I could simply hike from my house directly to the summit (although one way to Craggy might take the better part of a day). The trailhead is about a 50 minute drive, and the hike about 30 minutes.

SOTA notes and All Trails indicated that Craggy Dome’s trail isn’t always easy to follow and that it’s steep and slippery.

Craggy has been activated loads of times, though, so I wasn’t concerned at all.

Living here and knowing how much brush there was on the manway to the summit, I knew that Craggy would be a pretty easy summit if I could activate it after the parkway re-opened for the spring and before the mountain “greened-up”; about a five week window.

Meeting Bruce

My schedule opened up for an activation of Craggy Dome on the morning of April 21, 2022 and I was very much looking forward to it.

I wouldn’t be alone on this hike either. Bruce (KO4ZRN), a newly-minted ham, contacted me and asked if he could join me on a hike and simply be an observer during a SOTA activation.

Fortunately, timing worked for him to join me on this particular SOTA activation. Continue reading SOTA in the Clouds: Pairing the Elecraft KX2 and MPAS Lite for brilliant QRP fun on Craggy Dome!

A little off-grid radio and offline camping!

If you were hunting POTA contacts last week, you might have seen my callsign pop up in the spots quite a few times at New River State Park (K-2748).

Morning reading along with a proper brew in my C.R.A.Q. coffee mug!

Our family decided to take a little break from everything–including the internet–and simply enjoy the great outdoors and a little camping in our small travel trailer (caravan).

Our ferocious guard dog protecting the camp site from hostile invaders. Note that she’s actually awake and alert. A rarity indeed!

It was amazing fun.

In terms of radios, I limited myself to two. While we had room for more, I decided in advance I wanted to spend some proper bonding time with my Yaesu FT-817ND.

I’m so glad I did.

I also brought the Elecraft KX2 but primarily planned to use it when operating off-site. This way, I could keep the FT-817ND system hooked up and ready for action at our camp site.

In fact, the KX2 remained in my SOTA pack for the duration of the trip as a grab-and-go. I had an absolute blast with it activating the summit of Mount Jefferson.

Solar power

This camping trip gave me an excuse to use a station accessory I purchased last year: my Buddipole Powermini 2.

The Powermini 2 is a very compact and capable charge controller with an input for solar panels, a battery, two DC outputs, and even a USB power output. A genius little device.

I’ve been asked a number of times why I don’t do solar charging in the field during my activations. There are a few reasons, actually:

  • First of all, my activations tend to be short in duration–perhaps 45 to 75 minutes. I could easily operate for a few hours on one battery charge with most of my QRP radios. In other words, I rarely need to recharge in the field.
  • Often, my field activation sites are shaded by choice. Since I like to hang wires in trees, those same trees would block sunlight from ever hitting my panels.
  • Finally, unless I’m testing a new radio, I tend to take the least amount of accessories necessary to complete the activation. This is especially the case with SOTA activations. Since I’m unlikely to use solar panels, I leave them in the car or at the QTH. I do, however, keep them packed and at-the-ready should the need arise.

I paired the Powermini 2 with PowerFilm Solar folding panels I purchased many moons ago at Hamvention (I’m guessing in 2012 or so–?). These were blemished units and I snagged them for a brilliant price. Looking back, I wish I would have purchased a few more.

They’re only 5 watts each, but I run them in parallel to feed the charge controller with the equivalent of 10 watts.

QRP gear is so efficient, these modest panels actually do a respectable job keeping the battery topped off. At New River State Park it helped that our picnic table was in full sunlight most of the day.

Sure, we had shore power at the site, but where’s the fun in that?

QRM

During the week, the site had low levels of RFI/QRM. That all changed during the weekend when new campers moved in along with their leaky switching power supplies and noisy inverters.

On Saturday, I found it too frustrating to try making contacts from the campsite–the noise floor was a steady S7 with peaks around S9 simply washing over all but the strongest signals. I regretted not packing my Chameleon loop antenna.

Instead of fighting the QRM, I abandoned it. I drove to a large isolated picnic shelter at New River and set up the KX2 and CHA MPAS Lite antenna.

The site was noise-free and I had amazing fun.

Videos

I made quite a few activation videos, so I’ll eventually post them with abbreviated field reports.

Frankly, I am still catching up from having been offline so long.

Thank you

Massive thanks to my good friend Eric (WD8RIF) who took care of QRPer.com while I was gone. He’s been moderating comments and making sure scheduled posts published properly. In fact, my friend Robert Gulley (K4PKM) was holding down the fort over on the SWLing Post too. I’m so thankful to both of them.

Also, many thanks to all of the hunters who worked me on multiple bands and in multiple modes. A special shot out to NE4TN who was a life saver and spotted me on several occasions when the connection between the POTA site and Reverse Beacon Network were down. Many thanks, OM!

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. Your support actually helps to make radio fun like this possible.

Here’s wishing everyone an amazing weekend!

Cheers & 72,

Thomas (K4SWL)

The Elecraft KX2 version of Scott’s chest plate/manpack

Many thanks to Scott (KA9P) who writes:

As a follow-up to my previous post: this chest pack is still a bit of a work in progress but has been tested and works as is. I didn’t want the non-IC-705 owners to feel left out 🙂

The Condor MCR-3 chest plate can be used with a Condor T & T pouch (30 bucks) for most QRP rigs with a KX format.

The Condor T & T pouch is a frequently reviewed favorite of hikers and hunters – YouTube videos abound. The key feature is the way the pouch opens from a chest plate, or just straps, to form a tray. I expect you could modify other clamshell pouches of other sizes with an adjustable cord to do the same thing. I haven’t seen other pouches built to do this, yet.

The “tray” section contains a number of MOLLE loops as well as some loop material. This makes it easy to fashion your own radio attachment system. I have been using some hook material fastened to the back of KX2 for now, but am working on something that locks in, rather than tempt fate. Continue reading The Elecraft KX2 version of Scott’s chest plate/manpack

CW saves Leo’s POTA activation during a low battery warning!

Many thanks to Leo (DL2COM) who writes:

Thomas,

Today was crazy: when I woke up I thought it would be a good idea to attempt a first activation of DA-0171 in central Berlin after dropping off the kids at day care. So I grabbed my KX2 bag and jumped on my bike.

Shortly later I arrived at the park and pulled up my 40-10m EFHW and started calling CQ on SSB 40m.

It took me about 30 mins to realize that the KX2 was regulating the power down to 5W since both the internal and the external 4Ah battery I took with me were nearly dead.

I had one QSO with a German station and felt I wasn’t really heard anywhere. Then my KX2 started showing “low batt”.

It’s funny because attempting an activation isn’t really what one would call a very important thing, but I do develop quite an ambition if I have decided to get it done. So my only chance was using CW even though I am all but ready for that.

Having read your article about auto-spotting and watched many of your videos including POTA QSO style I didn’t think long and started calling CQ POTA on 20m.

OMG what followed was just amazing!

Fortunately I didn’t run into a classic pileup which would have been super overwhelming for me, but instead about every 2 minutes someone would reply to my call and in a very patient fashion – including one P2P QSO with an operator from Italy.

So all in all I completed 13 QSOs on a “low batt” warning of my KX2.

CW literally saved by butt and I am a very happy person. Without your work for the ham radio community this would not have been possible. So many thanks again.

On a different note: Last weekend (kit building seminar with the club) I had my first DX QSO. It was K3LU who picked up my call from my KX2 and a random wire 9:1 Unun antenna (L-Shape on a mast) with 28 and 17ft legs. I had to sit down and open a beer not able to do anything for about an hour but smile. Such a motivating event and I am happy he was such a great operator instantly QRSing with me and repeating his call. I am in touch with him and looking forward to receive his QSL card which will probably go in a frame.

I also finished the TR-35 and must say I am super impressed. It runs very quietly and the reduced concept is something I really appreciate. When will you take it into the field?

All the best & 73s de Leo (DL2COM)

Oh wow, Leo! I love this–thank you so much for taking the time to share your experience.

First of all, thank you for the kind comments–I’m honored to have even played a minor role in your CW activation. In truth, this is all chalked up to your determination and bravery! I’m guessing what you discovered is what I discovered during my first CW activation: not only is it not as bad as I had imagined, but it was actually fun and got the adrenaline pumping! 🙂 

I’m now happy to know that when I hit the Low Battery warning on my KX2, I still have some time left! In truth, the KX2 is so efficient, I’ve made six individual CW 5 watt activations on one charge of the internal battery without even hitting the low battery warning. 

Again, this story just makes my day. CW is such a fabulous, efficient, and magical mode! Good on you for diving in, OM!

I also think it’s brilliant that you worked Ulis (K3LU). You couldn’t have worked a better op for your first CW contact–he’s the real deal and a wonderful fellow. Not only that, but he has some amazing QSL cards!

And the TR-35? I couldn’t agree with you more. I did an activation with the TR-35 last Friday so a video and field report is forthcoming!

Thank you again, Leo! I hope others share their experience hitting CW for the first time (hint, hint!). 

Field Activation Antenna Challenge #1: Military Fixture Homemade Multi-band Doublet!

I mentioned in a previous post that my personal “Activation Challenge” for 2022 was “to build a new antenna each month and deploy it at least once that month during a field activation.”

On Thursday, January 27, 2022 I took my first antenna–the military fixture doublet–to Lake Norman State Park for a Parks On The Air activation!

For more information about this doublet and how it was constructed, check out this post.

Lake Norman State Park (K-2740)

I picked Lake Norman knowing that it had numerous spots to set up a doublet.

Unlike an end-fed wire antenna, doublets need a little more clear space to deploy both legs; the idea is to avoid as many low tree branches and other obstacles as possible.

Many (if not most) of the operators I know who regularly deploy field doublets actually use a telescoping mast for the center support to make the whole process easier.  I didn’t take either of my fiberglass masts on this outing because, frankly, the winding fixture on this doublet acts as the center insulator, and is “heavy” compared to most of my field antennas. Continue reading Field Activation Antenna Challenge #1: Military Fixture Homemade Multi-band Doublet!

Summits On The Air: Pairing the Elecraft KX2 and Chameleon CHA MPAS Lite on Bearwallow Mountain!

So far this winter has been a challenge in terms of activating summits. For me, at least.

Between my busy schedule, family life, and the weather, it’s been difficult to make the stars align. Activating a summit, in general, requires much more time than activating a park. At least, where I live.

Summits tend to be much less accessible and time-consuming than, say, a state or national park. Besides getting to the summit trailhead and hiking it, there can be quite a bit more research in advance including reading previous activator notes and mapping out the true summit location.

SOTA (Summits On The Air) activators (depending on their location) often have extra incentive to do activations during the winter because many of us can accumulate “bonus points” for summits above a certain height during the winter months.

As I’ve mentioned before, I’m not a numbers guy and honestly couldn’t tell you, for example, how many parks I’ve activated this year. But it would be awfully fun to eventually achieve “Mountain Goat” status in the SOTA program. It requires 1000 (!!!) points. Many of the summits where I live range from 1 to 10 points each. Each summit can only count once per year, so if I activate Mount Mitchell (our highest summit) the 10 points only count once in 2022 toward Mountain Goat status. The program is designed to encourage activators to activate a wide variety of unique summits each year. It’s a brilliant motivator.

I will be happy if I achieve Mountain Goat status in 5 years. I simply don’t have the free time to hit summits as often as I’d like. It is a really cool goal though.

Now where was I–? Continue reading Summits On The Air: Pairing the Elecraft KX2 and Chameleon CHA MPAS Lite on Bearwallow Mountain!

POTA Activation: In the Presence of a North Carolina Icon!

Dear QRPer readers:

As you likely know, my activation reports typically run a few weeks behind.  Although I’ve got several in the pipeline, I pushed the following report to the front of the line. 

You might brew a cuppa’ coffee or tea for this one. 

Here’s wishing you and yours very Happy Holidays and Merry Christmas!

73,

Thomas (K4SWL)


A Special Holiday Activation

As mentioned in my previous activation report, we’ve spent the past week on the Outer Banks of North Carolina; specifically, Hatteras Island.

It’s been amazing.

If you’re not familiar, the Outer Banks (OBX) is a 200-mile (320 km) long string of barrier islands off the coast of North Carolina and southeastern Virginia that separates the Pamlico Sound,  Albemarle Sound, and Currituck Sound from the Atlantic Ocean.

No trip to the Outer Banks would be complete without visiting North Carolina’s most iconic structure: the Cape Hatteras Light Station in Buxton, NC.

Cape Hatteras Lighthouse

On Thursday (December 16, 2021–last week) the weather was stunning, so my family took a few long walks on the beach, explored Hatteras Island, and spent the afternoon at the Cape Hatteras Light Station which is located within the Cape Hatteras National Seashore.

The Cape Hatteras lighthouse is a North Carolina icon and arguably one of the most recognizable lighthouses in North America due to its height, its age, and the black/white helical daymark paint scheme. Continue reading POTA Activation: In the Presence of a North Carolina Icon!

Field Report: Beautiful weather and three parks on the Outer Banks of North Carolina

Last week, my family hopped in the car and took an eight hour drive to the Outer Banks of North Carolina.

We’ve had such a busy 2021 that we decided to take a full week prior to Christmas and fit in some proper vacation and family time.

We love going to the coast off-season to avoid big crowds. Turns out, we chose well, too: it’s as is we have the whole of the Outer Banks to ourselves. Other than a couple days with some “invigorating” weather (which we actually enjoy) it’s been absolutely spectacular.

The view from our cottage

While radio plays an important role in any travels, my family time always takes priority. The good thing about activating parks is that radio and family time often go very well together!

On Friday, December 17, 2021, my daughter Geneva (K4TLI) and I decided to spend the day together while my wife and other daughter worked on an art project at our rental cottage. We had a few loose plans, but mainly wanted to fit in a nice beach walk, possibly discover some new scenic spots, and enjoy a take-out lunch together.

She very much liked the idea of fitting in a bit of POTA, so we hit the field with two sites in mind.

The plan

My Subaru is still in the body shop getting repaired after a bear decided to open the doors and make himself at home, so we have a Toyota Camry rental car on this trip. It’s been a great vehicle for sure, but its trunk space is limited and we packed quite a lot of food knowing local restaurants would be closed this time of year.

We all limited our luggage and I limited the amount of radios and gear I took. I could write an entire article about my holiday radio and antenna selection process (seriously, I put too much thought into it) but in a nutshell I limited myself to two radios and two antennas.

Here’s what I chose for this trip: Continue reading Field Report: Beautiful weather and three parks on the Outer Banks of North Carolina

Killing time by squeezing in a quick activation on the Blue Ridge Parkway

I love where I live.

When my wife and I made the difficult decision to move back to the US in 2003, we had a wide variety of options of where to live.  There was no doubt in our minds, though, that we would end up settling down somewhere in the Asheville, NC area.

We’re both from western North Carolina and had both–at different times–lived or worked in Asheville. It’s a beautiful area with a good arts scene and loads of outdoor activities.

These days, as I’m involved with both Parks On The Air and Summits On The Air, it’s an especially appealing place to live. We’ve a number of accessible POTA/WWFF entities and loads of summits to activate.

Blue Ridge Parkway (K-3378)

Any time I drive into Asheville, I pass by the Blue Ridge Parkway.

There are a number of easy parkway access points on the north, east, south and west sides of Asheville. I typically pass by the eastern access point of the BRP on Tunnel Road. Both the Blue Ridge Parkway Headquarters and the Folk Art Center are within spitting distance and both have picnic tables making setup and deployment quite easy for POTA/WWFF ops!

On Monday, November 29th, 2021, I found that I had a good 30-45 minutes to kill before heading home after running errands in town. My car was empty, as I was hoping our collision shop would ask me to finally bring the Subaru in for repair. They were waiting for one critical component to arrive.

Side note: Bears in cars

As I mentioned in a previous post, in late October, a bear opened all four doors of our car and proceeded to check inside for food. He wasn’t exactly “surgical” in his investigation and was likely frustrated when he realized there was no food to be found inside (never store food in your car in bear country).

He scratched up and punctured a lot of interior panels and ripped out many of the seals around the doors and windows. The damage would have been primarily superficial had he/she decided not to dig into the headliner. Continue reading Killing time by squeezing in a quick activation on the Blue Ridge Parkway

POTA Field Report: Activating South Mountains with the new N6ARA TinyPaddle!

On Sunday, November 28, 2021, my family needed a little time outdoors after a Saturday full of home projects.

I packed my field radio kit in the GoRuck Bullet Ruck, then we jumped in the car and drove to the Clear Creek Access of South Mountains State Park (the same site in my previous POTA field report).

South Mountains State Park (K-2753)

It was a gorgeous day and we had the park to ourselves. First thing we did was hike the short Lakeview Trail loop.

This trail is only 1.3 miles long, but offers up some beautiful views.

Hazel also came along and enjoyed the sights, smells, and even got her feet wet in a stream!

Fortunately, no one was using the one solitary picnic table at the Clear Creek access, so we claimed it!

First thing I did was launch a line and deploy my 28.5′ speaker wire antenna.

I knew it would pair perfectly with the Elecraft KX2!

I love this compact Weaver throw line bag!

The new N6ARA TinyPaddle

This activation also gave me an excuse to check out a paddle my buddy Ara (N6ARA) recently designed.

He calls it the TinyPaddle:

An appropriate name, because this key is wee! Ara notes:

As someone who likes bring experimental gear to summits, I have had paddles break on me multiple times. […] I don’t like carrying the extra weight/volume of a second set of paddles, so I designed my own “TinyPaddle” for backup as a middle ground option. It weighs roughly 3.7g and is 1.2cm x 1.2cm x 5.0cm in size.

He’s right, the TinyPaddle could tuck away even in the most compact of field kits. You’d never know it was there.

Here’s the TinyPaddle connected to the side of my Elecraft KX2:

Ara sent this key to me for frank feedback (prior to doing a small production run of them) knowing I’d not only check it out in the shack, but (of course!) take it to the field.

I decided to do my activation at South Mountains State Park using only the TinyPaddle.

Gear:

Before taking it to the field, I had some concerns that the TinyPaddle might turn in the 3.5mm key port on the side of the KX2 as I used it. Once plugging it in, though, I could tell that it would not be a problem at all. The paddle is so lightweight and so sensitive, it’s simply not an issue. In fact, it would be rather difficult to use it in such a way that it would shift in the 3.5mm port.

On The Air

Knowing in advance that it was a contest weekend (the CQWW), I decided I would stick with the WARC bands during this activation.

I tuned the speaker wire antenna to 10.112 MHz on the 30 meter band.

Hazel asks, “Got any doggy treats in that pack, daddy?”

The 30 meter band was more crowded than usual as many other POTA/SOTA/WWFF and casual operators sought refuge from the signal density on 40 and 20 meters.

Since I had the family with me and since we’d spent most of our time at the park eating a late picnic lunch and doing a casual hike, I allotted only 20 minutes of air time for this activation. I was hoping I could validate the activation with 10 contacts in that amount of time.

I started calling CQ with the N6ARA paddles. First thing I noticed was how sensitive and precise they were. Although the TinyPaddle is a mechanical paddle (with spaced contacts), they feel more like a capacitive touch paddle they’re so sensitive.

I started calling CQ POTA and soon logged KE4Q.

A few minutes later, I worked AI8Z, followed by W5WIL, WO0S,  WA2JMG, AA0Z, WA2FBN, N0VRP, KA3OMQ, W9SAU, and K1MZM.

With a total of 12 stations logged in 21 minutes, I went QRT.

QSO Map

Here’s what 5 watts into a 28.5′ speaker wire did on 30 meters that fine day (click map to enlarge):

Video

Here’s a video of my full activation. Hazel was being very camera shy; for some reason, she doesn’t like the OSMO Action camera. My wife and I think it must resemble something she’s seen at the vet’s office? We may never know!

Click here to view on YouTube.

And the TinyPaddle?

In short? I love the TinyPaddle!

Ara is obviously a talented engineer. I’m always impressed with devices like this that are so simple, yet so effective.

The TinyPaddle is going to live in my KX2 field pack as a backup to the KXPD2 paddles which have actually failed me in the field before.

That time the KXPD2 failed me…

I mention in the video that I once needed to use my Elecraft KXPD2 paddles to communicate with my buddy Mike (K8RAT) to share my SSB frequency for a very rare park activation I activated in the spring of 2020. After plugging the KXPD2 paddles into the KX2, I found that I could only send “dits.” I couldn’t even set it up to send as a straight key from one side of the paddle.

This forced me to drive 25 minutes to a spot where I had cell phone reception to contact Mike with info for a spot, then drive back to the site. That effectively shortened my activation of this ATNO park by 50 minutes!

KXPD2 missing one of the two center posts.

I sent Elecraft the photo above and they quickly identified the problem: turns out, one of the center posts had loosened and fallen out.  They immediately sent me a replacement post free of charge (typical Elecraft customer service).

I use the KXPD2 paddles quite a lot because they mount directly to the front of the KX2 making it possible to use my kneeboard during SOTA activations.
Since that mishap in the field, I tighten the KXPD2 posts at least once a month and also carry a precision screwdriver with me in my field kit.

A proper backup!

But having the TinyPaddle now is even extra insurance that a paddle failure won’t stop me from completing my activation!

When I made the video, I wasn’t certain if Ara was planning to do a production run of these or not. I’m very pleased to see that he has!

He’s made a storefront on his website N6ARA.com and is now selling the TinyPaddle as a kit for $15 or fully assembled for $20 US.

I’m certain he could actually fetch much more for these paddles, but he wants them to be an affordable, accessible backup paddle for anyone doing CW field activations.

He even includes a link to his Thingiverse page where you can download and 3D print accessories (including a TinyPaddle holder) and replacement parts at home free of charge.

Ara, thanks for making your project so available and accessible to everyone!

Click here to check out the TinyPaddle at N6ARA.com. Note that he’s doing these production runs in batches, but you can pre-order them.

Thank you!

I hope you enjoyed this field report and activation.

I’d like to send a special thanks to those of you who are 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.

Thank you!

73,

Thomas (K4SWL)

Bonus photos!

My daughter Geneva (K4TLI) took a few extra photos at the park that day. Enjoy!

She took this candid photo of me as I packed up the KX2. Check out my KSKO (McGrath, AK) tee shirt! Thanks for that, Paul Walker!