I have a number of friends (and many QRPer readers) in Ukraine, so it’s difficult to think of much else this morning after news of the invasion. From Reuters:
Russian forces invaded Ukraine on Thursday, assaulting by land, sea and air in the biggest attack by one state against another in Europe since World War Two.
Missiles rained down on Ukrainian cities. Ukraine reported columns of troops pouring across its borders from Russia and Belarus, and landing on the coast from the Black and Azov seas.
Explosions were heard before dawn and throughout the morning in the capital Kyiv, a city of 3 million people. Gunfire rattled, sirens blared, and the highway out of the city choked with traffic as residents fled.
The assault brought a calamatous end to weeks of fruitless diplomatic efforts by Western leaders to avert war, their worst fears about Russian President Vladimir Putin’s ambitions realised.[…]
Trevor (M5AKA) shared the following message via Twiter from Anatoly Kirilenko (UT3UY) of the Ukrainian Amateur Radio League:I’ve friends in both Ukraine and Russia and none of them want what’s happening here. My heart goes out to them. As with many of these situations, citizens have so little to do with the political, financial, and military interests of their leaders.
I might have mentioned in a previous post that I named my little Elecraft KX1 “Ruby.”
I name all of my field radios that are permanent; ones I never plan to sell or trade at any point in the future. Ruby is firmly in that keeper list.
Why do I anthropomorphize field radios? That’s perhaps a discussion for a different day but I reckon it’s because I feel they have a lot of character and are, quite literally, trusted companions. They go with me on travels, hikes, and all sorts of outings.
Ruby love
So Ruby is actually the second KX1 I’ve owned.
My first Elecraft KX1 also had a dedicated Pelican 1060 case. There’s even room to fit an external Whiterock paddle.
The first one I purchased in 2008 as a reward to myself for learning CW (see photo above). I enjoyed that KX1 until 2016 when I sold it to help fund the purchase of my KX2.
I immediately regretted selling it, although it helped that I sold it to an amazing person.
In October 2020, I purchased Ruby and wrote a post about how great it was to be reunited with this gem of a radio.
At the time, I had no idea what a great deal I had landed.
Ruby turned out to be a four band radio (it was advertised as three), included the built-in ATU, and the package came with a simple wire antenna, three different coaxial DC plugs, a Pelican 1060 waterproof case, earphones, and a set of KXPD1 paddles. All of this for $300 US shipped.
I took Ruby on a number of field activations and couldn’t have been happier
Intermittent issues surface
In the summer of 2021, I started noticing some odd behavior.
Sometimes, after turning on the power switch, the rig wouldn’t completely power up. Instead of the typical two clicks we KX1 owners are accustomed to hearing, I only heard one click and neither the display nor any of the functions worked.
This was an intermittent issue–the next day it might power up as it should.
I did a little troubleshooting: I completely disassembled it, visually inspected all of the solder joints, and removed/cleaned and reinserted the firmware chip. This had no effect at all.
So, I took Ruby to one of the best radio repair technicians in the world who also happens to be one of my best friends: Vlado (N3CZ). He actually does a lot of repair and even has a radio repair website.
Dr. Vlado
Vlado (N3CZ) draws a crowd during a joint park activation on the Blue Ridge Parkway a few years ago.
Vlado will be the first to tell you that the worst problems to diagnose are those that are intermittent; it takes much longer to trace the source of the problem.
A few days later, Vlado sent me a message notifying me that the patient (Ruby) was on the operating table and surgery was about to begin. (See why I call him “Dr. Vlado”–?)
Vlado checked the circuit board very carefully. He found a few solder joints that needed work including a couple on the chip holder. In fact, he completely desoldered the chip holder and soldered it back in properly. Keep in mind here that the KX1 was only ever available as a kit, so quality had everything to do with the skill of the original builder.
He re-assembled Ruby and she worked perfectly.
A second operation
I put Ruby back on the air for a few months, but then in December 2021, a variation of the same issue resurfaced. This time, the “two clicks” in startup took a couple seconds longer than it should. Then it simply stopped working altogether.
Vlado wanted Ruby back in surgery ASAP, so I dropped her off at his “Emergency Room.”
Since the problem was no longer intermittent, Vlado quickly sorted out the main issue: a faulty encoder.
I should note here that since the KX1 hasn’t been produced by Elecraft in many years, there’s always the fear that a replacement part might already be “unobtainium.”
I called Elecraft support and fortunately for KX1 owners everywhere, the encoder is one Elecraft uses in a few of their radios. They have a healthy inventory and the part costs less than $5.00. Woo hoo!
Admittedly, when I placed the order, I also order a few extra parts I thought could fail in the future and might be difficult to find: 3.5mm jacks, pots, and even the LED screen. If I was paying shipping anyway, why not add a few extras? The parts are all very reasonably priced.
The KX1 doesn’t seem to have a lot of unobtainium in it–I seem to recall though that the firmware chip can no longer be ordered from their website and neither can the pushbuttons. I bet you could find other pushbuttons if needed, though.
I had the encoder shipped directly to Vlado and he completed Ruby’s operation in short order. Thank you, Vlado!
To the field!
I’m so happy to have Ruby back on the air! We’ve chased numerous parks and summits in the past week and I took her on an activation Monday, pairing her with my recently-built K6ARK EFHW antenna.
I’ll post an activation report and video in the coming weeks.
KX1 advice
Elecraft KX1s have become as rare as hen’s teeth lately. You’ve no doubt noticed this if you’ve been looking for one. I’m sure I could sell my KX1 package in a heartbeat for twice more than I paid a year and a half ago. It’s a little insane, really, but I get it.
If you’ve been looking for a used KX1, I would offer the following notes/advice:
Since these were only available as kits, you might ask the seller about the original builder and/or have them take photos of the soldering work inside prior to purchasing.
Assume issues might arise with time. With radios like this, I mentally set aside at least a couple hundred dollars for future replacement parts and/or repairs.
Keep in mind that as with any other radio that’s a bit long in the tooth, you may find that some components are simply no longer available. That’s the risk we take being custodians of these cool little rigs.
Actively looking for a KX1 at time of posting (Feb 2022)? Note that interest in particular radio models waxes and wanes over time. With a little patience, you’ll eventually find one. I’ve seen this happen with so many other radios over the years.
The KX1, as with most Elecraft radios, comes in a number of configurations and you need to be aware of this if purchasing. Some only have two bands, some have three, and some have four. I’m not certain if band modules are still available via Elecraft, so you might get stuck with the configuration you purchase. Also, the internal ATU was an option; don’t assume the one you’re purchasing has the ATU.
KXPD1 paddles are very difficult to find these days. It’s a big bonus if your radio comes with them. Not everyone likes these paddles, but the version I have now seem to work really well, actually. N6ARA Tiny Paddles are a brilliant little replacement, but you might wish to make a 3D-printed holder to attach the the paddle point on the front of the radio to take a little strain off of the 3.5mm jack inside.
I should also add that Vlado is a brilliant repair technician and has worked on numerous Elecraft, Icom, Yaesu, Kenwood, and Ten-Tec models over the years–if it’s solid state, he can repair it. If you ever need his services he can be reached via his website HamRadio.repair.
Also, Dave (W8FGU) is an Elecraft employee that is devoted to their legacy radios like the KX1/KX1/K2, etc. He’s a great guy, brilliant resource, and I believe can also arrange repair, if needed.
Enough blogging: I think Ruby and I will chase a few summits now while I finish my morning cuppa’. 🙂
John reviews both the build and performance. He even put the TR-35 on his workbench and measured a number of parameters.
In short, the little TR-35 does exactly what it sets out to do and packs a surprising amount of performance.
John and I actually had a TR-35 to TR-35 exchange a few days ago (if not mistaken, the photo above was taken after that exchange). I was lucky enough to catch him as he activated a POTA site in Texas. From this end, his TR-35 sounded fantastic.
I’m putting together a review of the TR-35 which will likely appear in the May or June issue of The Spectrum Monitor magazine. I’ll eventually send this little TR-35 back to WA3RNC (it was very kindly sent to me on loan) but I do plan to purchase his TR-45 Lite kit when it hits the market later this year. Why? Because I don’t have enough QRP radios, that’s why.
Good morning Thomas, from wintry southwestern Ontario.
I thought I would send you a quick message to share my experiences, so far, with the little TR-35.
Yesterday, around 3pm, I took the above unassembled kit off the shelf and began to melt solder. The smoke test was successfully performed the next morning at 1:30am, after non-stop building (with the exception of a few hours for eating and catching up on a little tv). I measure twice and solder once hihi.
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.
There are so many FT-817/818 owners out there, I’m very curious if anyone has any experience with this particular pack and if you can report on the overall quality. Please comment!
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!→
I had my calendar marked for February 15 to check the site again for the 3rd batch as I thought that was the day they planned to issue another pre-order.
My buddy Eric (WD8RIF), who is the President of the Athens County Amateur Radio Club (ACARA), contacted me yesterday asking if I knew of any QRP kits designed with phone/SSB operation in mind. One of ACARA’s members was searching for one.
The only other kit I could think of was the new (tr)uSDX. When Eric asked for a link to the product, I went to the Rowaves site and discovered that they were taking pre-orders for the third wave of kits. Like, right then and there!
Without hesitation, I added one to my shopping cart and checked out.
I thought perhaps Rowaves caught up and no longer had a waiting list. This morning, when I checked the site again however, it appears they’ve sold out of the third batch.
Without Eric’s prompting, I would have never thought to check the Rowaves site yesterday.
Side note:There are various (tr)uSDX group buys out there. I don’t completely understand how they work, but perhaps someone with more experience can comment. DL2MAN has information and links on his webpage.
Intimidated
(tr)uSDX board “sandwich”
If I’m being brutally honest, the (tr)uSDX kit is a bit intimidating for me. I recently referred to myself as a “gross motor skills” kit builder. I think that’s a pretty accurate description. I’m fine with through holes, simple toroids, and very clear, illustrated instructions. Truth is, I absolutely love building kits. But I’m not an electronics engineer, so when instructions are vague, I can get lost quite easily.
The (tr)uSDX toroids don’t look terribly complicated and all of the surface mount components are pre-installed. Still: it’s a wee kit and I’ve yet to check out the build instructions.
It might be a challenge for me, but I’m really looking forward to it. Besides: knowing that John (AE5X) will build his kit before I do, I’ll simply bug him if I have questions! [Sinister laugh slowly fades…]
More SSB Kits?
While on the topic of kits, can anyone point Eric to other SSB kits that are currently available on the market? If so, please comment with a link and thank you in advance!
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!
I’ve got my new Venus SW-3B all dressed up and ready for a SOTA activation this morning (February 10, 2022); that is, if all goes well. Haven’t quite decided what summit yet, but it’ll have to be one I can hit fairly easily during my travels today.
I’ll plan to do 20 meters primarily, because I’m taking my PackTenna 20M EFHW. I also have a 30M EFHW–a separate antenna that I might also give a go. We’ll see how busy things are.
I’m either going to find a summit with a good hike, or do a drive up summit, then hike later at park. Either way: my goal is some radio and hiking today.
I’ll plan to make a video of this activation if all goes well. To record the SW-3B audio, I’ll be using a small Sony digital audio recorder I found at a thrift store for $20 a few months ago. I don’t have time to give it a proper shake-out before I go; in fact, I don’t have AAA batteries to load in it for a test so plan to pick some up en route.
New radio, new pack, new thrift store audio recorder that’s never been powered up…
It’s really packed out at the moment, though, because I’m using a bulky battery and haven’t optimized any of the components & accessories yet. I’ve a much smaller battery solution in the works.
If you’ve nothing else better to do today, check out the POTA and SOTA spots likely sometime between 1600-1900 UTC. With any luck, I’ll be on the air and you’ll then know what an SW-3B sounds like.
QRP radios, product announcements, reviews, news and more. Low power amateur radio fun!
Please support QRPer by adding us to your whitelist in your ad blocker. Ads are what helps us stay online. All of our ads are ham radio related--no junk, we promise! Thank you!
I’ve friends in both Ukraine and Russia and none of them want what’s happening here. My heart goes out to them. As with many of these situations, citizens have so little to do with the political, financial, and military interests of their leaders.
