Category Archives: News

Announcements, News, QRP, QRP Radios

New Penntek TR-35 firmware adds CW message memory keying

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John (WA3RNC) has just announced a new firmware (V.0.24) upgrade for the Penntek TR-35 that will start shipping in all TR-35 orders starting Sunday April 23, 2022.

The new processor adds two new features:

  • The ability to record and playback two CW message memories
  • A function to toggle the display from black with blue characters to solid blue with black characters

Of course, the big upgrade–in my world–is the addition of CW message memory keying and I can confirm that it works very well. More on that below…

Obtaining the upgrade

As John (WA3RNC) states in his announcement:

The good news is that any TR-35 can be upgraded with a simple replacement of a properly programmed plug-in microprocessor, or with the reprogramming of the original microprocessor. No other hardware changes are required.

But…there is bad news. The availability of the Atmega328P-PU microprocessor has gone from “buy it anywhere for $1.95″ in mid-2021″ to “virtually unavailable anywhere at any price” today. Delivery dates are quoted as May of 2023 for orders that I placed last year. 

[…]Because of this critical chip shortage, I do not have a sufficient inventory of the Atmega part to be able to send out programmed microprocessors for upgrades. What parts I do have are destined for production of TR-35 and TR-45L transceivers.

Therefore, a TR-35 firmware upgrade will require that the transceiver be sent to me freight prepaid for reprogramming, along with funds for return shipping and insurance of $15.00.

Understand that there is no charge for the actual upgrade reprogramming, only for the cost of returning your unit to you.

I think is excellent customer service, actually, and a clever way to get around the chip shortage: use the chip you already have.

Again, if you’re buying a new TR-35, it’ll ship with the latest firmware.

If CW message memory keying or inverting the OLED screen colors aren’t important to you, it’s not necessarily worth upgrading because the new firmware only includes the new features.

Testing message memories

Recently, John sent me an upgraded chip with an early Beta version of the new firmware to thoroughly test in the field. I replaced the TR-35 chip myself.

I tested the new functionality in the shack and on a dummy load.

As with most built-in CW message recorders, you’ll need to set the CW speed to a comfortable setting before recording. During the recording process, you need to send accurately spaced characters, else, for example, the software might interpret the “AN” in your callsign as a “P.”

The first time I set memory 1 to “CQ POTA DE K4SWL” it took three tries to get it right. When I set the second memory to “BK TU 73 DE K4SWL” I recorded it in one go.

Recording message memories on the TR-35 is at least as easy as directly recording a message on my KX2 or KX3. I’m pleased.

In the field

Last week, I took the upgraded TR-35 to the field and used the message memory keying during my activation.

It worked beautifully.

John sorted out a clever way to initiate playback without having to make any hardware additions to the radio:

  • To play a message memory, simply tap the AUX switch down and then hit the left side of your paddle to send message #1 or the right side to send message #2.
  • Recording messages works the same way, but instead of a short press of the AUX switch, you initiate a long press.

Even this early version of the upgrade worked well.

Field report and video coming soon!

I’m going to push the field report from last week to the front of the line because I know many of you will be curious to see how it plays in the field. Hopefully, I can post this by Monday (April 25).

My Penntek TR-35 Review

FYI: My full review of the TR-35 will be in the May 2022 issue of The Spectrum Monitor magazine.

Field Reports, Morse Code, News, POTA, QRP, SOTA

Speaker Wire SOTA & POTA: Another rendezvous with Rendezvous Mountain!

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I get a little thrill out of checking out new parks and summits.

When going to a new-to-me site, I typically do quite a bit of research in advance. With parks, I look up directions to the entrance, hiking trails, park boundaries, and try to sort out the best potential activation sites on a map. With a summit, it can be much more complicated, but reading previous activator notes really saves a lot of headache. That’s especially the case here in the States where many summits are on private/gated land and/or could require bushwhacking off trail with no mobile phone service.

Then again, returning to a site I’ve been to before is also quite nice. I know what to expect and that often opens up the door to more confidence with time planning, antenna choices, and what to pack in terms of gear.

 

On Friday, March 25, 2022, I re-visited a site I hadn’t been to in nearly a year: Rendezvous Mountain Educational State Forest.

 

What’s great about Rendezvous is that it’s both a POTA and SOTA site.

On top of that (no pun intended) the activation zone of SOTA summit 2543 (W4C/EM-082) is on a road where Rendezvous Mountain Educational State Forest (K-4859), and Rendezvous Mountain State Game Land (K-6941) overlap. One activation yields two parks and one summit!

Last year, it took a bit of research to make this discovery. I studied both the park and game land maps, then compared those with a Cal Topo map. If interested, check out that field report here.

Rendezvous Mountain

I arrived on site around 12:45 local. The park was void of visitors–I almost felt like I’d arrived on a day when the gates should have been closed.

As I grabbed my SOTA backpack out of the back of the car, a ranger pulled up in his truck and  asked if I was planning to hike. I told him about my plans and asked if it was okay that I hike the forest service road to the summit. He said, “Sure. But when you reach the prison crew doing brush cutting on the road, make sure one of the guards sees you before you attempt to pass them.”

Okay then.

I thanked him and double checked that it was actually not a problem to hike the road and he said, “Go for it!” Continue reading Speaker Wire SOTA & POTA: Another rendezvous with Rendezvous Mountain! →

Morse Code, News, QRP Radios

The Yaesu FT-817/FT-818 and narrow filter availability

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IMPORTANT UPDATE:

After this article was originally posted, I discovered a very easy way to assemble your own narrow CW filter. Click on this link to read a post that describes, in detail, how you too can build a replacement Collins narrow CW filter for the FT-817/818 series radios (plus other similar Yaesu models). 

What follows is the original article:

So I’m a big fan of the Yaesu FT-817/818 series radios. This general coverage QRP radio has had a longer market run than any other transceiver I can think of and for good reason.

While the 817/818 lacks some of the advanced features of more modern field rigs and have no internal tuner, it makes up for it by:

  • sporting multi-mode HF, VHF, and UHF coverage,
  • having two selectable antenna options (a front panel BNC and back panel SO-239),
  • being incredible durable/rugged,
  • featuring excellent QSK (albeit with a bit of relay clicking…which I actually like),
  • and  generally being very affordable (prices typically from $400 used to $650 new).

In addition, they tend to hold up well with time.

For the price? I feel like you get a lot of radio with the FT-817/818.

This is the reason why I often recommend the FT-817ND and FT-818ND if it sounds like a good match for the operator.

One gotcha though…

I’m starting to realize that there is one downside to this rig especially if you’re primarily a CW operator: optional narrow filter availability. Continue reading The Yaesu FT-817/FT-818 and narrow filter availability →

Field Radio Kits, Guest Posts, News, Portable, QRP Radios

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

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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 →

Field Reports, Guest Posts, Hams, How To, News, Portable, POTA, QRP, SSB, Videos

Brooks’ first Parks On The Air (POTA) activation

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A few weeks ago, I received an email from Brooks (KO4QCC), a newly-minted  ham radio operator who asked to tag along on one of my POTA field activations. 

Brooks, it turns out, lives within spitting distance of a number of parks I regularly activate here in western North Carolina. He mentioned he was interested in observing an activation to learn a bit about deploying a field radio kit and, of course, to learn what it’s like to be on the air.

Brooks was also plotting the purchase of his first field radio kit and was very interested in the Icom IC-705 and MFJ-1988LP End-Fed Half-Wave (EFHW) antenna. 

Of course, I welcomed him to join me but since we both have busy family lives–and my schedule especially took some twists and turns in March–it took a few weeks before our schedules aligned.

I asked Brooks if he would consider actually doing the activation himself instead of simply observing or tag-teaming it.  I’m a big believer in hands-on radio time.

Brooks loved the idea!

On Sunday, March 27, 2022, a window of opportunity opened in our schedules and we agreed to meet at Tuttle Educational State Forest (K-4861). I packed my:

As I’ve mentioned before, I’m not really a “YouTuber” so I’m not actually inclined to capture every moment on video, but it struck me that others may appreciate experiencing (vicariously) what it’s like to do a park activation for the first time.

Prior to meeting, I asked Brooks if it would be okay if I made a video of his activation adding that there was absolutely no pressure to do so–just a thought. I’ll be the first to admit that if I were in his shoes, I’m not sure if I’d want a camera capturing my first activation jitters for all to see. 

Brooks loved the idea–as he, too, saw value in this sort of video–so I brought my camera along for the ride.

In the same spirit, I asked Brooks if he would write up the field report and he wholeheartedly agreed, so I’ll turn it over to him now: Continue reading Brooks’ first Parks On The Air (POTA) activation →

Field Reports, Guest Posts, News, Portable, QRP

Guest Post: Fraser Activates Ben Newe Despite the Winter Weather

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Last week, while browsing Twitter, I scrolled past a short note and photos from Fraser (MM0EFI) describing his recent activation of Ben Newes in NE Scotland. I’m not sure if it was the snow, the KX2, or his vintage Land Rover (or all of these) but I wanted to know more about this activation.

Fraser kindly agreed to share the following field report for us here on QRPer.com: 

Ben Newe SOTA Mini-adventure

by Fraser Wenseth (MM0EFI)

Introduction

I’ve lived on the eastern edge of the Cairngorms National Park in north east Scotland for around six years. I’ve always climbed the hills, winter and summer, enjoyed rock & ice but now just love being outdoors. I’ve held an amateur radio licence for 18 years but have to admit that until I discovered Summits on the Air (SOTA), my licence was under utilised!

SOTA has allowed me to discover local hills that I had previously driven by on countless occasions on my way to bigger adventures, or so I thought, because it’s possible to have amazing adventure on smaller hills just by picking the time of day, season, or even choice of radio gear. Sometimes I’ll just carry VHF gear, which is always a challenge in a rural area! Of course I still love a big day out in the mountains, but todays story concerns a little hill just 7 miles from my home in Royal Deeside.

It’s called Ben Newe and its’ SOTA reference is GM/ES-053. It stands 565m or 1853’ above Strathdon in Aberdeenshire. I’d planned on climbing it after work. Generally I work a really early shift one day a week and the motivation for getting out of bed at 0340 is knowing that I’ll generally be on a summit around 12 hours later.

I left for work at 0400 (British Summer Time, UTC+1) and that’s when the snow started falling. It actually didn’t stop until 1900 that evening. We’d had an unusual winter, with little snow. Here we were in April and it had snowed for over 12 hours! I really wanted to get out for a SOTA activation and the snow was only going to enhance my adventure. I spent some time (probably too much time) thinking of suitable peaks to climb whilst at work that day. Ben Newe fitted the bill perfectly. Continue reading Guest Post: Fraser Activates Ben Newe Despite the Winter Weather →

Field Reports, Morse Code, News, Portable, QRP, Reviews, SOTA

SOTA Field Report: How long will Pale Blue Li-Ion rechargeable batteries power the Elecraft KX1?

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February and March 2022 were a crazy couple of months for me.

So crazy, that I wasn’t able to fit in one single POTA or SOTA activation for a nearly 4 week period. I’m not sure I’ve ever been that long without an activation since I started POTA in earnest.

Between home projects, wacky weather, timing/logistics, and even a brush with Covid, I had my hands full.

Thankfully, on Friday, March 19, 2022, the stars aligned and I was able to fit in an activation of Bakers Mountain for the Summits On The Air (SOTA) program.

It was so nice hitting the field again!

Pale Blue AA Battery Field Test

I like shaking up my activations and trying new transceiver/antenna pairings. On this particular activation, I had a special test in mind.

A few months ago–almost as an impulse purchase–I ordered a set of eight Pale Blue AA Li-Ion rechargeable batteries. I didn’t check the specifications, but I did watch this somewhat promising assessment on The Tech Prepper YouTube channel.

My hope was that these little Li-Ion cells might power my Elecraft KX1 long enough to complete a field activation.

The KX1 is a marvel of QRP engineering, in my humble opinion, and it was the first super portable transceiver I owned that could be powered by internal batteries.

When the KX1 was first introduced, Elecraft recommended using non-rechargeable Advanced Lithium AA cells from Energizer and Duracell. These batteries sported a rather flat discharge curve and could power the KX1 for quite a while. Of course, the downside is they’re single-use and expensive. Six of those cells would often set me back nearly $9 or $10. Before I started doing POTA and SOTA, I kept a set of advanced lithium cells in my KX1 for casual, impromptu QRP in the field.

Doing frequent field activations–which tend to have much more transmitting time than casual Qs–it’s just not sustainable to purchase these cells, so I tend to power the KX1 with an external battery.

I couldn’t resist the thought that I could use USB rechargeable batteries in the KX1, so I forked out $60 (mild gasp!) for a set of eight AA batteries (these are purchased in packages of 4).

The cool thing about the Pale Blue batteries is that they can be directly charged from any 5V USB power source. Each battery sports a Micro USB port and its own internal battery/charge management system.

I was well aware these batteries would not power the KX1 for hours at a time, but I was hoping they could for at least 30-45 minutes.

The only way to really find out was to do a real-life field test. A SOTA activation would be ideal! Continue reading SOTA Field Report: How long will Pale Blue Li-Ion rechargeable batteries power the Elecraft KX1? →

Grab And Go, Hacks and Hints, News, Portable, QRP

Scott’s Icom IC-705 manpack built on a Condor MCR3 chest plate

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Many thanks to Scott (KA9P) who writes:

Here’s a MOLLE-related [piece of field kit] you may not have seen yet.

My summer 2022 QRP /PM rig is built around a Condor chest plate – not really a pack although there is a plate carrier compartment that thinner things store in easily enough. And I often have a small accessory pouch in the chest plate.

The key ingredient is the IC-705 adapter plate, made from scrap 0.06 inch thick aluminum scrap.

The four tines that fit the chest plate MOLLE webbing are spaced per the MOOLE/PALS standard of every 1 1/2 inches, but the tines themselves are 3/4 inch wide rather than 1 inch to make them easier to insert in the chest plate.

 

The plate is attached to the 705 with M4 by 10 socket head screws. I first used a single quick disconnect 1/4-20 photographer’s knob, and it worked, but eventually would loosen enough that the radio would start to swivel.

The orange strap that retains the adapter plate at the top of the chest plate is riveted to the adapter plate with plastic POM rivets. The chest plate is a Condor MCR3, about 26 bucks on eBay.

The radio goes in and out of the chest plate in less than a minute, and the adapter plate can be removed in a minute or two. The radio is very stable and easy to operate.

As a bonus, the loops also hold a Buddistick mast section, then a Versatee with a Buddistick.

With the antenna in front, I can change bands and adjust the whip and coil while standing. The antenna also goes in and out of the chest plate quickly.

I’m finding it’s great fun to listen and operate on the way to and from my operating destination. Definitely the easiest /PM set I’ve had. Every control and jack, and the battery, is easily accessed with the radio attached to the plate.

It’s like the 705 was intended to be used this way!

72, keep up the great work.

Scott ka9p

Absolutely fantastic pedestrian mobile setup, Scott! I love how the custom IC-705 mounting plate makes such a stable surface for the IC-705 to be suspended as you operate. As you say, you also have very easy access to all of the station components.  Brilliant!

Thank you for sharing your design notes and photos!

Field Reports, Morse Code, News, QRP

POTA Field Report: Gazebo QRV & Gusty Winds with the Elecraft KX1 and K6ARK EFHW

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One of the things I love about our state and national parks is that no matter how often I visit, there’s almost always something new to discover.

This is especially the case as the seasons change from winter to spring.

On March 20, 2022, I carved out enough time in my afternoon to fit in a quick activation of Tuttle Educational State Forest. My main goal, in truth, was fitting in a nice hike–the weather was beautiful, although it was rather gusty.

I needed a little “radio therapy” that day as I had been spending time in the hospital with my mom who had a nasty case of pneumonia. This was a few weeks ago and she’s feeling much better now, thankfully, but those hospital weeks in March were pretty stressful for all of us.

Field activations are such an effective way for me to get in a little exercise, a little radio time, and clear my mind; again, proper “radio therapy.”

Tuttle Educational State Forest (K-4861)

For this trip, I packed the Elecraft KX1 field kit which included my K6ARK EFHW antenna since that was the last pairing I’d used int he field (click here to read that report). I did, however, transfer the KX1 to my new Pelican 1060 waterproof case.

I actually have a solid yellow Pelican 1060 case for the KX1, but after reading about Leo’s QCX-mini field kit built in a clear-topped Peli 1060, I realized how much I missed having a clear lid on the 1060. I checked Amazon and discovered that their blue one was on sale, so I grabbed one. This was a total impulse purchase, by the way.

And for the record: I’m accused of being a radio enabler on a daily basis, but in my defence I promise the enabling works both ways! I’ve bought so many things based on reader recommendations. 🙂 Continue reading POTA Field Report: Gazebo QRV & Gusty Winds with the Elecraft KX1 and K6ARK EFHW →

Hams, Morse Code, News, Portable, POTA, QRP

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

5 Comments

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!).