Category Archives: Morse Code

Amazing Fun with 3 Watts: Pairing the MTR-3B, T1, Speaker Wire, and a 9V LiFePo4 battery at South Mountains

I’ve been spending more time with my Mountain Topper MTR-3B (“Tuppence”) recently and have been thoroughly enjoying this little radio’s companionship.

Since I made a dedicated ultra-compact field kit for the MTR-3B, it has also been even easier to toss it in my backpack and take it on little field adventures. The field kit is truly a grab-and-go and even includes a throw line and weight.

On Friday, January 28, 2022, after a total of six individual park activations during the previous two days (a POTA RaDAR run and my first 2020 Antenna Challenge activation) driving back to the QTH I thought, “surely I can skip doing an activation today.

That quickly turned into, “Wait a minute…I’ve got enough time to fit in both an activation and a hike!

So I made a quick detour off of I-40 to visit the Clear Creek access of South Mountains State Park.

South Mountains State Park (K-2753)

I pulled into an empty parking area; not really a surprise on an early Friday afternoon. In addition, I figured many were out grabbing bread and milk since winter weather was in the forecast.

I decided to do my activation first, then pack up and take the full kit on a hike. Continue reading Amazing Fun with 3 Watts: Pairing the MTR-3B, T1, Speaker Wire, and a 9V LiFePo4 battery at South Mountains

POTA RaDAR Run Final Activation: Testing the new MTR-3B field kit at Tuttle Educational State Forest

On January 26, 2022, I fit in multiple park activations in one day as a RaDAR (Rapid Deployment Amateur Radio) run. My hope was to activate four or five sites between 14:00 – 21:30 UTC.

Here are the field reports and videos of my first four activations:

The next park in my run (#5) was Tuttle Educational State Forest and it was the final park in this modest RaDAR run!

I packed up the gear at Johns River Game Land in a matter of three minutes, popped it all in the car, then drove 8 minutes to nearby Tuttle Educational State Forest which, at this point, almost feels like a home away from home.

Tuttle Educational State Forest (K-4861)

As I pulled into the Tuttle parking lot, I found my buddy Max (W4GZ) activating the park from his truck. It was no surprise finding Max here since I had just worked him Park-To-Park (P2P) from Johns River next door.

Max delivered some precious cargo: some more of his mom’s homemade QRP pickles!

“Them’s QRP pickles!”

Max continued to activate Tuttle from his truck while I set up my station. Continue reading POTA RaDAR Run Final Activation: Testing the new MTR-3B field kit at Tuttle Educational State Forest

POTA RaDAR Run Activation #4: A “wham bam” activation at Johns River Game Land

On January 26, 2022, I fit in multiple park activations in one day as a RaDAR (Rapid Deployment Amateur Radio) run. My hope was to activate four or five sites between 14:00 – 21:30 UTC.

Here are the field reports and videos of my first three activations:

The next park in my run (#4) was either going to be my last activation, or second to last depending on my available time.

After visiting with my buddy, Hamilton, at his ceramics studio in Morganton (read about that in the previous report) I looked at the time and decided I could fit in a very quick activation of Johns River Game Land (#4) en route to Tuttle Educational State Forest (#5).

I made up my mind en route that I’d use my fastest-to-deploy combo: the Elecraft KX2 and Chameleon CHA MPAS Lite.

I really wanted to be in and out of the site within a 20 minute window. That’s actually very doable as long as I could rack up at least ten contacts in 10-15 minutes. Some days, propagation can make that a tall order, though!

Johns River Game Land (K-6916)

Johns River actually has a number of access points and, frankly, none of them are exactly “bucolic.” Other than the river itself which is beautiful and the main access point for the river which is well-maintained, most of the game land parking areas are filled with litter.

I chose a parking area for this activation which has, in the past, looked like a dumping ground. I was pleased when I pulled into the parking lot this time to find it much cleaner (no old refrigerators or sofas dumped at the far end of the lot) but then again the snow on the ground was likely hiding quite a bit of litter! My philosophy is to always leave a site cleaner than I found it, but Johns River often has so much littler, I could spend a week picking up trash.

After doing a very short intro for my activation video, I set up the Elecraft KX2 and MPAS Lite antenna in a matter of two minutes.

Gear:

On the air

I started calling CQ POTA (with my fingers crossed!) on 40 meters and was very pleased that chasers were out and about!

I worked my ten contact in 9 minutes and then went QRT! Woot!  Here’s the log sheet:

In this short activation, there was actually a P2P with Max (WG4Z) who was just up the road at Tuttle Educational State Forest. We were definitely working each other via ground wave.

The contacts were flowing so well, that I wanted to stay on the air a bit longer, but I knew to fit in Tuttle and a hike, I really needed keep moving. As soon as I worked my ten, I hopped off the radio.

While I like putting more contacts in the log–especially when they’re flowing so freely–it was actually kind of fun to validate this activation in somewhat of a “sprint.”

QSO Map

Here’s what 5 watts and the MPAS Lite yielded in nine minutes on the air:

Activation video

Here’s my real-time, real-life video of the entire activation. This must be one of the shortest activation videos I’ve ever made:

Click here to view on YouTube.

Thank you

Thank you so much for reading this short report and coming along with me on this RaDAR run! I’ll be posting Park #5–Tuttle Educational State Forest–soon where I catch up with Max (WG4Z) and we work park-to-park once again.

As always, I’d 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 truly appreciate the support.

These are crazy times we’re living in these days (at time of posting). I wish all of you good health, safety, and peace–especially our good friends in Ukraine.

Let’s all treat each other with kindness and respect this week as we remember that all we’ve got on this old planet is each other.

I hope you get some time to play radio this week!

72,

Thomas (K4SWL)

POTA RaDAR Run Activation #2: Pisgah National Forest & Pisgah Game Land

As mentioned in my last field report, on January 26, 2022, I decided to fit in multiple park activations in one day as a RaDAR (Rapid Deployment Amateur Radio) run. My hope was to activate four or five sites between 14:00 – 21:30 UTC.

The first activation at Lake James State Park went so well, it started me out a little ahead of schedule.

After packing up my gear at Lake James, I began a 40 minute drive to the second site–Dogback Mountain–where I hoped to do a POTA two-fer along with a Summits On The Air activation.

The drive was beautiful. Only twenty minutes into the trip, I came to the forest service road that lead to Dogback Mountain. For a six mile drive, Google Maps was telling me it would take about 20 minutes, so I knew the dirt road would require slow driving.

The road was actually in pretty good shape, but there are rocky and rough spots that pretty much require good vehicle ground clearance. My Subaru had no issues at all–in fact, I love driving on back roads like this!

Three or four miles into the forest service road I reached an impasse.

While there hadn’t been snow in the area for at least a week, the north slope portions of the road were quite icy. The thaw and night time freezing pretty much meant that there was no snow to navigate–only ice, and I’m not a big fan of ice.

I already passed through two sections of ice where I could still manage a little traction on the side of the road (at least half the car had traction). At one point, though, I saw a large section of icy road ahead, so I parked the car to investigate what it looked like over the crest of the hill.

It was so icy, I struggled to find a spot to walk on to peek over the hill and almost slipped once. That hill was pretty steep and I could see no spots for the car to get traction. Remembering what my wife said that morning (“Don’t do anything crazy, okay?“) and knowing that the worst thing for my RaDAR run would be getting stuck in a spot recovery vehicles might struggle with, I chose the option of forgoing the summit activation.

Frankly, if the summit activation was the only thing on the schedule that day, I would have likely parked, then hiked 3 miles to the summit along the forest service road. But my RaDAR run left no time for this.

Fortunately, where I parked was firmly in the two-fer zone of Pisgah National Forest and Pisgah Game Land!

Pisgah National Forest (K-4510) and Pisgah Game Land (K-6937)

I parked the car on one of the many roadside camping areas right there on the ridge line. It was an ideal spot for a field activation: good altitude, no obstructions, and lots of trees. Continue reading POTA RaDAR Run Activation #2: Pisgah National Forest & Pisgah Game Land

POTA RaDAR Run: Planning, Plotting, Packing, and Activating Park #1!

You may have noticed a common theme in my field reports: basically, it’s rare that I plan out an activation more than 24 hours in advance.

Indeed, due to my “dynamic” (I think that’s a good word for it?) family schedule, I often don’t plan an activation more than one to two hours in advance.

But last month, I saw an opportunity open on Wednesday, January 26, 2022. Basically, I had from early morning until late afternoon to play radio.

Making plans

At first, I thought about striking out early and hitting some of the parks that are a little further afield–parks I hadn’t visited in a couple years, or some new-to-me parks.

Then, I hatched an idea to activate two SOTA summits. Both would qualify for bonus winter points and both were technically doable in the time I had allotted. It would involve about 9-10 miles of hiking in addition to 3 hours of driving plus allotting for the time I’d actually spend on the air. It would equate to a very early departure and some steady hiking.

That Tuesday evening, I started putting the plan together, downloading all of the maps, preparing my SOTA alerts, and packing my SOTA pack. I spent the better part of an hour plotting and planning these activations.

Then the realization hit me: the trails I’d be hiking were likely covered in snow and ice which would slow me down considerably especially since my Yaktrax Traction Chains hadn’t yet been delivered. I realized the schedule was just a little too tight. There’s be no room for mishaps and if I made the trip I really wanted to hit both summits in the same day. So, I saved all of my maps, links, and notes to do this multiple SOTA run in the near future.

Back to the drawing board!

I decided that I did like the idea of doing multiple activations in a day, so why not fit in a RaDAR run?

RaDAR (Rapid Deployment Amateur Radio) is basically an activity that can be combined with summits and/or park activations and the idea is simple: you complete multiple rapid field deployments within 24 hours.

If you’d like more information about RaDAR, check out this webpage. Parks On The Air even has a few awards for RaDAR runs–it would be fun to apply for one of them (thanks, WD8RIF, for the heads-up!).

I so rarely have enough time to consider more than two or three activations in a day that the idea of fitting in four or possibly five activations was very appealing.

I looked at the POTA map and sorted out a route between park entities that were all in western North Carolina. I was familiar with all of the locations save one which had the potential to be both a POTA and SOTA activation. Continue reading POTA RaDAR Run: Planning, Plotting, Packing, and Activating Park #1!

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!

Recap of my first SOTA activation with the Venus SW-3B

I made a short post yesterday morning noting that I planned to take my Venus SW-3B and new field kit out on a maiden SOTA/POTA activation.

While I will be publishing a full activation report and video, it could be a good two weeks down the road.

I’ve gotten so many inquiries about the SW-3B, I thought I’d write up a short recap with some of my initial notes using the SW-3B in the field.

This isn’t a comprehensive review; just some beginning field notes I made for a full review I’ll write for The Spectrum Monitor magazine.

Dogback Mountain (W4C/EM-066)

I decided to activate Dogback Mountain knowing that it would easily fit in my travel plans. The views (see above) were extraordinary. Thank you for the tip, Dave (W4JL)!

This was also a shake-out for my Tom Bihn HTL2 field kit which will likely be shared with the SW-3B and Elecraft KX1. It includes everything I need to deploy the SW-3B in the field–including an arborist throw line!

I confirmed that everything in the kit worked and there were no missing components.

I paired the SW-3B with my PackTenna Mini 20 meter EFHW. This limited me to the 20 meter band, but I suspected it would yield enough contacts to validate my summit (4) and park activation (10).

I fed the Venus SW-3B with a 3 Ah 12V Bioenno LiFePo4 battery pack–my output power would’ve been about 5 watts.

Results

In short? It really couldn’t have gone better.

I worked a total of 43 stations in 44 minutes on the air. Here’s what my contacts look like on a QSO Map (click image to enlarge):

Venus SW-3B Field Notes

Overall, the experience of using the SW-3B was brilliant.

Since this little rig doesn’t have an internal speaker, I recorded the audio with an in-line Sony digital recorder. Later, when I produce the activation video, hopefully I can blend the separate audio channel with the video successfully. (Any YouTuber worth their salt can do this, but keep in mind I’m not really a YouTuber!)

SW-3B Pros:

  • Excellent receiver for field activations. I noticed no overloading and it handled the pileups very well.
  • Very pleased with CW filtering.
  • I was able to successfully program the “CQ” button with the following message: “BK TU 72 DE K4SWL” This is huge. At one point, the SW-3B could only handle a simple CW + callsign message. I’m very pleased its only message memory slot can hold the end of my exchange. Also, it is very easy to program.
  • The SW-3B is incredibly compact; only slightly bulkier than the MTR-3B if you include the encoder and AF/RF gain pot protrusions.
  • I am loving the dedicated AF and RF gain pots.
  • Display is very easy to read in the field.

SW-3B Cons:

  • Changing the CW keying sped on the fly is really not an option. It’s an awkward process.
  • The sidetone isn’t adjustable without modifying an internal component. If I could, I’d lower it just a notch or two. As-is, it’s perfectly fine, but adjustable sidetone would be a nice feature.

SW-3B Quirks:

  • When switching bands, the SW-3B defaults to saved memory allocations (not the last used frequency). If you forget and switch bands, then turn the encoder, it cycles through saves memory allocations instead of up/down tuning.

Summary

Keep in mind: this is my first activation with the SW-3B. I don’t typically form strong opinions until I’ve taken a radio on at least three or four activations and used it at the QTH extensively. With that said, first impressions are great. This radio offers much more than I would ever expect for $188.

I see why it has has become so incredibly popular among CW field activators. Now that the Mountain Topper MTR-3B is no longer available, this is a viable alternative.

I’m sure some of you may be trying to decide between the MTR-4B and the SW-3B. I will be reviewing an MTR-4B soon, but based on my experience with the MTR-3B, I don’t think you could go wrong with either radio, frankly.

The MTR-4B does allow for a total of 3 CW message memories that are very easy to access and include beacon mode. You can also adjust the sidetone volume on the MTR-4B (requires opening the enclosure to make the adjustment). Obviously, the MTR-4B is a four band radio including 80 meters in addition to 40, 30, and 20.

The SW-3B, however, has an AF and RF gain control–the MTR series has no volume control at all. The SW-3B also has a rotary encoder which makes chasing contacts across the band much easier.

The MTR-4B receiver current is roughly 27 milliamps. The Venus SW-3B closer to 40 milliamps. (Yeah, splitting hairs here!)

Stay tuned!

In the coming weeks, I will be posting a number of activation reports and videos using the SW-3B. As I mentioned, I’ll also post a comprehensive review for The Spectrum Monitor magazine in the coming months.

I can say this: if you’re a CW op who is searching for a compact field radio?  The SW-3B is a no-brainer. Just grab one.

If you still can’t decide between the MTR-4B and the SW-3B, consider getting both. Why? You could easily kit out two independent fully self-contained field packs on the (relative) cheap!

This will give you two choices for grab-and-go field activations.

Thank you

As always, I’d 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 truly appreciate the support.

Your support not only pays the bills at QRPer.com, but makes it possible for me to purchase radios like the SW-3B.

Thank you!

I hope you get an opportunity to play radio this week.  Stay healthy and safe out there!

Cheers & 72/73!

Thomas (K4SWL)

Video: A complete POTA field activation from planning/scheduling to QRT

A few weeks ago, one of my YouTube channel subscribers asked if I could make a video showing the entire process of activating a park: everything from planning, scheduling, packing, driving, setting up, to activating.

Why not, right?

So on January 20, 2022 I scheduled an activation of K-6856 and recorded a very, very long activation video!

It’s 1 hour 42 minutes long, in fact, but I broke the video into chapters to make it easier to navigate and digest.

Activation Video:

Click here to watch on YouTube.

Since the entire process has been captured on video, my field report below will simply focus on the various sections of the video along with my results. That and I didn’t even think to take a single photo I was so busy with the camera (images here are all screen shots).

In the shack

My OSMO Action camera does a brilliant job outdoors, but in the shack it did struggle with my monitor brightness/contrast while I scheduled the activation. When I checked the quality from the camera’s built-in monitor screen, it looked pretty acceptable, but after being uploaded to YouTube, it was less so. Sorry about that!

Knowing this could be a problem, I did my best to describe everything I was doing on the screen. Frankly, I couldn’t go back and re-shoot this if I wanted to because it was all happening in real-time.

Before I scheduled the activation, I did sneak in a wee bit of park hunting! After all, this is how I do things in the shack.

Oh yeah, my shack wasn’t exactly tidy that day as I had a project on the table. You’ve been warned. Continue reading Video: A complete POTA field activation from planning/scheduling to QRT

N6ARA introduces the new TinyPaddle Jack!

A few week ago, my buddy Ara (N6ARA) sent me a prototype of his new ultra-portable CW key, the TinyPaddle Jack (TPJ).

You might recall, Ara introduced the original TinyPaddle late last year. His motivation for the original TinyPaddle was to have a super minimalist paddle that could be stored away as a spare in your kit for those times when you either forget or have an issue with your primary paddle in the field.

The TinyPaddle is a very capable little key!  Click here to read my field report using the original TinyPaddle.

Turns out, there was a lot of pent-up demand for a product like the TinyPaddle. At $15 for the kit or $20 fully assembled, the TinyPaddle is a serious bargain. Ara and his father have been quite busy producing these.

Enter the TinyPaddle Jack (TPJ)

Whereas the TinyPaddle is designed around being the most simple/minimalist backup paddle solution–basically a wee paddle with a male 3.5mm connector that plugs directly into a rig’s paddle jack–the TPJ takes it one step further.

The TPJ is essentially the TinyPaddle  with a female 3.5mm plug encased in a 3D-printed holder and protective cover.

The design is clever. The case that protects it while stored away in one’s field pack, pulls apart and is re-joined to make a very usable paddle holder.

There are actually quite a few purchase options, so Ara created this short video that describes the different components/options and how to use them:

Click here to view on YouTube.

I’ve been using the TPJ with my MTR-3B and new SW-3B. As I mentioned in my field report with the TinyPaddle, the action of this paddle is actually very precise–it almost feels like a capacitive touch paddle.

I find that the holder definitely adds to the ergonomics of the paddle (although it can actually be used without a holder, too).

Ara also created a small adjustment tool that will allow you to tweak the paddle spacing if needed. Keep in mind, this is a very simple paddle design (there are no springs or magnets) and isn’t really meant to be a primarily paddle. I do feel, however, that it will hold up quite well over time. The spacing of the contacts is so fine, I believe the stress on the paddle levers is minimal .

I plan to keep a pair with my new MTR-3B field kit (above) and use it as the primary paddle for that radio. I will plan to buy a second one for the SW-3B a well.

Highly recommend

The price of the fully assembled TinyPaddle Jack ($24) and Cable ($5) is $29 US.

This is firmly in the “no-brainer” category.

Just take my money!

I personally think Ara could charge $40+ for these and they’d still be a bargain. I know him well enough to know that his motivation is in the fun of designing these products and making them accessible to other field radio operators. Case in point: I’ve been pricing quality 3.5mm patch cables recently and I find his $5 cable to be an excellent price; even more competitive than cables I’ve seen on Amazon and eBay.

In addition, Ara even freely distributes the 3D printer files so you have the option to print your own paddle holder!

It’s obvious to me that these products are his contribution to the community that pays for itself enough so that he can continue to innovate. His designs are so clever, I can’t wait to see what he comes up with next!

Very well done, Ara!

Click here to check out all of Ara’s products at N6ARA.com.

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!