Postcard Field Report: Pairing the Elecraft KX2 and MM0OPX EFHW to face dubious propagation

Welcome to another Postcard Field Report!

I’m still in Dayton after Hamvention weekend, but didn’t want to skip my field report and activation video, so a hope you enjoy the slightly shorter report below:

Zebulon Vance Historic Birthplace (K-6856)

On Tuesday, April 25, 2023, I once again stopped by my weekly POTA spot, the Vance Birthplace.  By mid-May, I will no longer be passing by this excellent little POTA site on a weekly basis, so my activations here will be much less frequent. A shame because I do love this site and its staff!

For this particular activation, I’d planned to test my almost perfectly trimmed QRPguys Tunable EFHW antenna, but I left it at home. Not a problem, actually, because after this activation, I discovered it’s not as resonant as I’d like on the 20, 15, and 10 meter bands, so I may tinker with the toroid windings a bit–perhaps removing one.

Instead, I deployed my MM0OPX EFHW which I thought was actually a great choice considering propagation had been incredibly unstable the previous few days.

Since I also had my Elecraft KX2, I knew I could use its built-in ATU to move to non-resonant bands like 17 and 30 meters.

This activation video is a long one because I had quite a lot of time to play radio and, frankly, it was nice taking things at a casual pace.

After deploying the antenna (twice!) I set up the radio, connected my Begali Traveler, and hopped on the air! Continue reading Postcard Field Report: Pairing the Elecraft KX2 and MM0OPX EFHW to face dubious propagation

Hike and Talk: Using best practices

Last month, I recorded another “Hike and Talk” session before a POTA activation at K-4861. If you’re not familiar with my “Hike and Talk” series, these are long-format, unedited videos where I hike (camera in hand) and cover a topic that’s not easy to encompass in an email reply or even blog post.

This particular topic was even difficult for me to title–!

I receive a lot of questions and feedback from readers about my field deployments and choice of antennas, feedline, power output levels, etc. Most of the time, these are readers who are genuinely curious why I’m not using “best practices” in my POTA/SOTA activations; deploying the highest efficiency antennas, using more counterpoises, running 100 watts, etc. etc.

Truth is? It’s all about context!

My field radio station, for example, isn’t set up to the same standard as my home or QTH station…for good reason, actually! The “best practices” I use at my home station aren’t always the same as the ones I use during a POTA activation.

I hope you enjoy this video and would welcome your constructive comments.

Video

Click here to view on YouTube.

Are you prepared for Radio First Aid?

by Vince (VE6LK)

(As is Vince’s usual, this article has a bunch of links – click on as many as you wish for the full experience)

Before I go too far into this topic, I wish to first offer hearty congratulations to Thomas Witherspoon for having one thousand posts on QRPer.com! Woo-Hoo!

Do you pack a Radio Field First Aid kit?

On my recent trip to VE3-land I had a few opportunities to practice set-up with my gear–away from the safe place that is my truck–to ensure I’d brought everything for my trip to Hamvention and activations along the way. I did forget an audio cable, however a visit to a local dollar store solved that problem inexpensively.

So, unless you pack two of everything -because two is one and one is none– you should expect that something’s going to fail or break along the way. What you never know is when or how that’s going to happen. I wouldn’t be writing this story if it had not happened to me before.

This time it was on a Sunday outing to VE-1512, the McLaughlin Bay Reserve Wildlife Area in Oshawa Ontario and far away from the comforts of my shop at home. Tucked away not far off of the 401 Highway, this nature reserve is a calm and peaceful oasis just minutes from urban life. I saw kayakers, hikers and trail runners during my visit.

Setting up my Comet HFJ-350M, I added the jumper cable to set the antenna for 20m and then I started to push the antenna down into the ground onto the stake. And that’s when my hand slipped and I broke the jumper cable connector, busted off in the hole.

Broken pin that triggered my outward potty mouth

For the inquisitive among you, my inner potty mouth made a brief outward appearance, ahem. Continue reading Are you prepared for Radio First Aid?

A break from email and reminder about the amazing QRPer.net discussion board

Dear Readers,

This week, I’m heading to the Dayton Hamvention––and fitting in a POTA rove, as well. (Woo hoo!) In the following two weeks I’ll be doing quite a lot of traveling.

QRPer.com will be updated regularly, but I won’t have a lot of time to answer questions via email.  I’ll mainly check email for news tips and guest posts.  Any replies I send will likely be quite short.

Since I typically receive around 40 emails per day just from readers, I suspect I’ll have an insane back log over the next few weeks!

Because I tend to want to answer everyone’s email–indeed, I do my best to answer any emails that aren’t accidentally eaten by my SPAM filters–I acknowledge this will be a struggle.

While it’s a privilege that folks want to reach out to me for advice, questions, and the like––the truth is, I’m reaching a point where there simply isn’t enough free time in the day even when I’m home, let alone when I’m traveling. I’m not entirely sure what I’ll do moving forward, but something will have to change soon.

I don’t want to reach a point where I have to choose between creating content…or responding to emails.  So if I just can’t get to yours, thanks for understanding.

But what if you still need some advice?  What can you do?

The QRPer Board to the rescue!

If you have a question, I would strongly encourage you to ask it in our amazing–completely free–forum at QRPer.net: https://qrper.net/

This discussion board is moderated and monitored by an amazing group of Elmers and volunteers who have a wide range of experience and expertise. It’s no secret that you’ll likely get a much better answer from these folks than you would from me!

Also, feel free to ask questions in the “comments” section of relevant posts here on QRPer.com.  You’ll have the whole reader community to hear and help you.

Thank you!

Thank you all for being a part of the community here on QRPer.com. I appreciate your support and also your amazing field reports, guest posts, and feedback!

Have a wonderful week, everybody…and, again, I hope to meet you at Hamvention or Four Days In May!

Cheers & 72,

Thomas (K4SWL)

Survey #2 Results: If you could only have one QRP radio for all of your ham radio activities, which one would it be?

This past weekend, I posted the second of several surveys on QRPer.com asking:

“If you could only have one QRP radio for all of your ham radio activities, which one would it be?”

The responses started flowing in immediately and, once again, within the first day we had already accumulated over 400 votes.

I turned off the survey at 8:00 EDT on Tuesday, May 16, 2023, with a total of 618 responses. Due to my travel schedule this week, I didn’t leave the survey open for responses as long as I did for Survey #1.

Survey Results

Here’s a pie chart showing the top 14 results in the survey. To see detail, you will need to click on the image below (or click this link) to enlarge it in a new window:

The top choice was the Icom IC-705 which accounted for 28.8% of the 618 votes.

I’m not at all surprised the IC-705 was the most popular choice.

This survey focused on the one single QRP radio you’d pick to accommodate all of your ham radio activities, modes, etc. Frankly? The IC-705 does it all: HF/VHF/UHF multimode operation, DV voice (D-Star), built-in GPS, wireless connectivity for digital modes, built-in sound card, built-in Bluetooth and WiFi hotspot, built-in recording, broadcast band reception, high-performance receiver, color spectrum display and waterfall, and so much more. Heck, you can even charge its battery pack with a common Micro USB charger.  Read my review if you want a more comprehensive view of the IC-705.

The only real con anyone mentioned was a lack of an ATU which, frankly, is something that’s so easy to remedy with an external ATU or by using resonant antennas.

Your second choice was the Elecraft KX2 which accounted for 20.1% of the votes.

The KX2 is such a versatile portable HF transceiver that it was the most popular choice in our first QRP radio survey. No doubt, those who chose the KX2 love playing radio in the field as their primary activity because it’s such an adept and versatile radio to take outdoors.

Your third choice was the Elecraft KX3 with 18.7% of the votes.

I actually thought the KX3 would take second place since it’s one of the highest-performance HF radios on the market and covers 160-6 meters with a 2 meter option. It’s an HF Swiss Army Knife of a radio.

In fact, during the first day of voting, the KX3 held the number two spot with as much as a 2% lead over the KX2, but as more votes rolled in, that lead narrowed and the KX2 displaced the KX3 for runner-up.

Your fourth choice was the Yaesu FT-817/818 which accounted for 10.5% of the votes.

Again, I’m not surprised the FT-817/818 ranked high among survey respondents. As I mention in a recent article, the FT-817/818 is an amazingly versatile, durable, and capable QRP radio.

It’s also the most affordable among these top contenders!

Like the IC-705, the FT-817/818 has multimode capabilities from 160-6 meters, VHF, and UHF.  It also sports both SO-239 and BNC antenna ports which makes it very unique among QRP radios!

The lab599 Discovery TX-500 took fifth place with 3.9% of the votes among this set of distinguished radios.

Those who chose the TX-500 appreciate it for its 160-6 meter coverage, its unique form-factor and weight, overall performance, weather-proofing, and superb RX/TX current numbers for battery conservation. For those who like to play radio outdoors (sometimes in the rain) for hours at a time with a modest battery? Yeah, the TX-500 is made for that stuff!

Full Results…

If you would like to see the actual number of votes for each of the 48 radios in this survey, click the link below to load the rest of the page: Continue reading Survey #2 Results: If you could only have one QRP radio for all of your ham radio activities, which one would it be?

Guest Post: EmComm and FunComm!

Many thanks to Scott (KK4Z) who shares the following post from his blog KK4Z.com:


EmComm and FunComm

by Scott (KK4Z)

As I have said earlier, I practice EmComm to prepare for natural or man-made disasters when normal means of communication fail. FunComm is pretty self-explanatory, it’s things I do for fun. Fun things may include POTA, Field Days (winter and summer), supporting bike rides, and other club activities. I always like it when I can blend the two together. When I participate in POTA either for a weekend camp-out or a day activation, isn’t it kind of a practice run for an EmComm event? I use the same antennas and most of the time the same radios. My equipment gets a good exercise and I learn more about how they operate under different conditions.

Recently, I bought a new camper, the old one wasn’t working well for the things I like to do. The new camper is so much better but not without its growing pains. I had to find a better way to use the radios inside the camper. To save words, here is a picture of what I have been using. It works okay but because it uses part of the bed, it made sleeping uncomfortable. After this last camp out when I woke up all sore and twisted feeling, I decided it was time to find a better way.

The new desk stacks the radio and power supply above the computer. This reduces the overhang on the mattress. The desk area for the paddle does overhang a little but sliding the desk to the right when not in use alleviates that.

The other thing I did was make a cut-out on the door side to make it easier to get my legs out. This works really well and does not impair the stability of the desk.

The last thing is the main desk is 30″ deep and the shelf is 20″ deep. This leaves plenty of room for the radios and enough room to slide the computer under the shelf if I need the desk space for something else.

Sitting behind the desk, the radio controls were easy to get to.

The desk is made from one sheet of 3/4″ plywood with (2) 1×3″x8″ boards. The stain was a can of Minwax I had laying around, I think it was Golden Oak.

Construction was simple, using hand tools found in most garages. It is not a piece of art, I don’t have the time. My philosophy is that “Perfection is the enemy of good enough”. The desk is glued, screwed, and nailed without any fancy joinery. If I waited until I had time to do a better job, the wood would still be at Lowe s.

I tried it out in the driveway and everything works and feels good. The radio is easy to get to and the computer is a little high but not uncomfortable. With the cut-out, it is easy to get in and out of the camper. The next test will be at the end of the month during my next camping trip. Hope to hear you out there. 73 – Scott

Lakefront QRP and Bags Galore!

by Vince (VE6LK)

(As is my usual, this article is full of hyperlinks – click on as many as you wish)

The days leading up to my first Hamvention trip were a bit scattered to say the least. While I was pretty sure I remembered everything and even documented most of my gear on Twitter, I would only discover that the bag I intended to carry my gear around in was too small once I arrived in VE3-land. The very next morning I was shopping in several big box stores trying to find the perfect bag only, hours later, to discover an Army Surplus Store across the street from my activation and after the activation concluded.

Holey Moley lookit all the molle and backpacks!
Thomas’ reaction upon seeing this photo was predictable 😉

Anyways, the short summary on the shopping trip was that I figured out a way to get me through the trip without spending a fortune.

The day’s goals were to make a simple activation at a park near the family where we were visiting east of Toronto. Before travelling I scoped out POTA entities that were nearby and had not yet received a CW Activation thus putting me closer to my CW goal for the year.

I landed up at Lakefront West Park VE-1480 in Oshawa Ontario.  A recreational trail winds along the waterfront of Lake Ontario about 100m away, and eight baseball diamonds are the central feature here. Given the lack of trees at the park, and that I do not have a small mast on this trip for my EFHW -although I may remedy that at Hamvention- I chose to deploy my Comet HFJ-350M with some simple ground radials. With the solar reports showing SFI 149, SSN 134, A 19 and K 2, I chose 20m as the band for the day. 5W on my KX3 into a ground mounted vertical with one each 66′ and 33′ radial wires would have to be enough.

DX Toolbox on iOS – click for App Store link

I have the full Comet HFJ-350M kit including the bag to carry all the pieces in. I also have a ground stake from eBay that comes with a 90 degree SO-239 adapter allowing me to attach feedline on the side and the antenna on the top. Not including the ground radials, the whole kit rolls up reasonably small, about 3″ in diameter and 12″ long. Continue reading Lakefront QRP and Bags Galore!

Postcard Field Report: Pairing the Elecraft KX2 and Packtenna 9:1 Random Wire at Holmes Educational State Forest

Well, I’m off to Hamvention in two days and trying to prepare for the trip. There’s so much to do!

If you are attending Hamvention this year, I’d love to meet you. Stop by the Ham Radio Workbench/Halibut Electronics table (#3011) and introduce yourself.

Since my travels this week are imposing on my field report time, I’m going to share another, shorter, Postcard Field Report. I hope you enjoy it:

Holmes Educational State Forest (K-4856)

On Friday, April 21, 2023, I had a short window of time to fit in an activation while my daughter was attending her high school robotics class.

Her robotics class lasts nearly two hours, but it’s 30 minutes away from all parks and summits, so traveling to/from a site takes about one hour.

I didn’t care because I had a particular park in mind: Holmes Educational State Forest (K-4856).

It had been one year almost to the day since I last activated Holmes.

I arrived on site around 13:30 local, and there were only a few other people floating about.

I walked up the main loop path in search of a good picnic table that was out of the way and with ample trees about.

In a pinch, any of the picnic table sites would have sufficed, but since I practically had the whole park to myself, I could afford to be picky!

The sign above reminds me that Educational State Forests in North Carolina have hours that vary by season and truly cater to school groups, thus are primarily open during the school day. Always check those hours before embarking on a journey to this type of park.

One great thing about our Educational State Forests is that they almost always have a nice covered picnic shelter for school groups. If they’re not occupied, they’re perfect for POTA activators who’d like to escape heavy rains. You can see the one at Holmes off in the distance in this photo:

I ended up choosing the same picnic table I used last time–it had more room around it to set up an antenna without crossing the path.

I didn’t have a lot of time to set up and operate, so I chose to use one of my speedier deployment combos: the Elecraft KX2 and PackTenna 9:1 Random Wire. Continue reading Postcard Field Report: Pairing the Elecraft KX2 and Packtenna 9:1 Random Wire at Holmes Educational State Forest

Survey 2: If you could only own one HF QRP radio, which one would it be?

I’m asked a variation of this question several times a month (no kidding!):

“Thomas, if you could only own one QRP radio, which one would you choose?”

If you’ve asked me this question, you’ll know I have a pretty canned response because I feel it’s a very subjective question–one that’s all about one’s own personal preferences–thus the radio I choose may not be the radio you would choose. Since others’ might use this choice to make a purchase decision, I’m uncomfortable providing a simple answer.

I need to better understand the operator before making a suggestion.

Survey #2

The last survey we conducted was so much fun and quite insightful! I’ve a number of surveys in store for the next few weeks. As with the previous, Survey #2 also focuses on HF QRP transceivers.

In this survey, I’d like to explore the topic above. In fact, another future survey will as well, but the case use will be more specific, so please read this survey question carefully:

Imagine, for a moment, that money is no object and that you could own any QRP transceiver in the world. Which one would you choose for all of your various radio activities?

In other words, you can own any QRP radio in the world, but you must use it for all of your radio activities (POTA, SOTA, QTH, Field Day, travel, etc.). Some of you may need a radio that can do all of these things. Some of you may only use it for Field Day, or travel.

In addition, some of you may only use one mode, while others use SSB, AM, CW, and various digital modes!

It’s all about you and how/where/when you might operate!

Please use the form below to make your selection. It’s okay to add a radio that isn’t listed in the “Other” selection, but make sure it’s a QRP (20 watts or less) transceiver, else the entry will be  removed because this particular survey is all about QRP radios.

The survey has no place for comments, but please let us know why you chose what you chose in the comments section of this post!

I will plan to share these results later this week. Thank you!

QRPer Notes: Phil’s Field Antenna Survey Results, Gripping the Palm Pico, and 70’s/80’s Vintage QRP Radios

Because I receive so many tips from readers here on QRPer, I wanted way to share them in a concise newsletter format.  To that end, welcome to QRPer Notes, a collection of links to interesting stories and tips making waves in the world of radio!


Field Antenna Survey

Many thanks to Phil (KA4KOE) who shares the results from an informal survey he conducted on the POTA Facebook group. Phil writes:

Tom

I’ve let the survey run for about 3 days on the POTA Facebook group. Sample size was 658 votes. I opted to do a “type” survey and not by manufacturer.

Results:

    1. End Fed Half-wave: 25%.
    2. Shortened vertical with loading coil: 20%.
    3. Full-size vertical antenna / Hamstick style vertical with helical coil:12% each.
    4. Full-size dipole/doublet, etc.: 10%.
    5. End Fed Random Wire: 9%.
    6. Screwdriver motorized coil antenna: 3%
    7. Something tossed in tree and just hoped it would work: 2%

Total: 93%.

Remaining obscure types cut-off below 2% accounted for 7%.

Again, like the poll I conducted previously on radio types, not surprised by the No. 1 spot.

What DID surprise me was #7: I put that selection in the poll types as a joke but 2% of hams throw a wire up in a tree or other support with no forethought and hope it works.


The Palm Pico: Getting a grip!

Many thanks to Terry (N7TB) who shares the following tip:

Hi Thomas,

I was looking at your post re: the Pico Paddle.

I have both the single and double Pico paddle and the KX3 mount. After watching you hand hold your paddles, I came up with a way to make small paddles easier to hold. I have attached a photo. It is a small piece of 3/8 ID pipe insulation to make holding the Pico paddle easier.

Have a great trip to Hamvention.

73,

Terry
N7TB


QRP Radios from the 70s and 80s

Many thanks to Ron (W6AZ) who shares the following video from Mikrowave1 on YouTube:

You asked for it! Here is the birth of QRP and a whack at revealing the top 10 QRP Homebrew Projects and Commercial Radios that started it all. What is all the fuss about low power?

QRP radios, product announcements, reviews, news and more. Low power amateur radio fun!