Want To Buy (WTB) Ads? Beware of scammers, they’re getting clever.

Over the past couple of years, I’d been casually watching the used market for a Kenwood TH-D72A handheld. Last summer, I started searching in earnest—I wanted one specifically for portable full-duplex satellite work.

For discontinued gear like this, instead of waiting for one to show up, I’ll often post a “WTB” (Want To Buy) ad on a classifieds site like QTH.com. In the past, I’ve had good luck with this approach.

This time around, I did eventually find a legitimate seller and now have a TH-D72 in my shack. But before that? I had to navigate several scam attempts—five of the six replies I received were from scammers.

And let me tell you: scammers are getting much more convincing.

Although this happened to me last year, in the past couple of months I’ve heard from several readers who’ve lost serious money through online classifieds—sometimes for high-end transceivers.

One story in particular prompted me to finally dust off this post from my drafts folder and finish it.

Please note: this isn’t a comprehensive guide. It’s simply a rundown of the real-world steps I take and the red flags I watch for. As scammers increasingly adopt powerful AI tools and become more sophisticated, I think it’s worth sharing how I approach online swap meets these days.

Rule #1: Assume Every Seller Is a Scammer Until Proven Otherwise

I walk into every transaction—whether I’m buying or selling—with a healthy dose of skepticism. That may sound cynical, but it’s saved me from a lot of headaches.

Scammers can pose as both buyers and sellers. They prey on your sense of trust, often impersonating legitimate hams. QTH.com knows this too; before posting an ad, you must confirm you’ve read their scam policy, which is packed with great advice.

Rule #2: Use QRZ.com to Vet Callsigns and Email

QRZ.com is the de facto database for amateur radio contact info. You need a QRZ.com account to view someone’s email address. If a person’s callsign profile has no email address listed, that’s a red flag. Scammers often impersonate real hams who don’t list an email—making it nearly impossible to verify their identity directly.

When someone replies to your ad, see how they contacted you. If they use your email from QRZ but don’t also reach out via the classifieds site’s internal classifieds contact form/messaging system (QTH.com or QRZ.com), be cautious. I usually confirm a response by emailing the address listed on QRZ.com directly and saying, “Hey—just confirming this reply came from you.”

Rule #3: If the Price Feels Too Good, It Probably Is

In my case, TH-D72A prices range between $250–$375 depending on condition, included accessories, etc. Some appear for $400+, but those rarely move quickly. The first day I posted my WTB ad, I got three responses: two were priced well below market. All three were scams.

Scammers study the market carefully. They want to offer something just cheap enough to be irresistible—but not so low that you question it. The key is to know your gear’s current market value, both new and used. If it feels like a steal, slow down and verify everything.

Rule #4: Call the Seller (They’ll Usually Be Glad You Did)

I make it a hard rule: I never send money to someone I haven’t spoken with on the phone. This may sound old school, but it works.

What’s more—I’ve never had a legitimate seller refuse a phone call. In fact, those calls usually help build rapport and trust. Most sellers are happy to chat about the gear, how long they’ve had it, what condition it’s in, and why they’re selling.

If someone avoids a phone call or keeps dodging it? That’s a major red flag in my book.

Rule #5: AI Has Made Scammers More Polished Than Ever

Scammers now use AI to clean up their writing, correct grammar, and even simulate a natural tone. The sloppy typos and awkward phrasing we once looked for? Those are becoming less common.

That’s not to say grammar is irrelevant—if a message sounds “off,” trust your instincts. But don’t rely on spelling alone to spot a scam. Assume a message might be AI-assisted and ask deeper questions instead.

Rule #6: Ask for Fresh Photos with Handwritten Details

Scammers often reuse real images from previous listings or scrape them from the web. I’ve had five scam replies with convincing product photos and callsigns printed on paper. But every single one was fake–they used AI or a graphics tool to superimpose a callsign on a what looks like a white sheet of paper.

What I now ask for:

Two photos of the item, from two different angles, with a handwritten note that includes:

  • The seller’s callsign
  • Their first name
  • The full date (month/day/year)

The note must be:

  • Handwritten on plain paper (no digital overlays or re-used images, no QSL cards because they’re easier to cut and paste into an image)
  • Placed next to the actual item, not just the box
  • Clear and visible in the same photo as the item

This request (mostly based on QRZ.com swap meet posting requirements) helps filter out scammers. Why? Because scammers almost certainly don’t have the item in hand—and they definitely can’t easily produce two unique images of the same gear and note from two different angles. This is something easily done by someone taking a photo of the item in front of them (simply reposition your camera for two shots). It’s extremely difficult to do this convincingly with AI.

As of mid-2025, AI-generated images still struggle with replicating specific devices like radios from multiple angles.

Bonus Tip: Compare the photo you receive to manufacturer stock images. If the item looks slightly off in terms of proportions, buttons, or layout, it might be AI-generated.

Here an example of an AI-generated image I requested:

The AI image, at first blush, looks reasonably convincing, but the notepaper is standing up on edge, the handwriting is super neat, and the image has a surreal quality to it—not like a real photo.

Of course, comparing the AI image with the actual Kenwood stock image (see below–taken directly from the Kenwood website) reveals numerous product discrepancies in button layout, display, size, etc.

If a seller pushes back too hard on your photo request or seems annoyed? Consider that a warning sign. If they’re not comfortable with this low-effort verification step, they might not be great to deal with down the line either.

Payment: A Few Extra Best Practices I Follow

  • Use PayPal “Goods & Services” — never “Friends & Family” unless it’s someone you know personally.
  • Some sellers request Friends and Family (F&F) because they don’t wan to to pay the PayPal fee. If this is the case, I add 3% to cover the G&S fee if needed.
  • Avoid Zelle, Venmo, or gift cards unless it’s a local, in-person exchange–say, at a hamfest or convention.
  • Again, always talk on the phone before sending payment. It’s always a bonus verification if the sellers’ area code matches their QRZ physical location.

In Closing

The online ham classifieds are a great way to find gear—especially discontinued or rare items that don’t often pop-up at local hamfests. But the environment is changing. Scammers are adapting fast, and AI is helping them sound more convincing than ever.

I still love buying and (on rare occasions) selling gear this way—but I walk in carefully. This post isn’t a masterclass in fraud prevention, just a collection of my habits, red flags, and lessons learned. I hope it helps someone else avoid falling for a scam.

If you’ve got tips of your own, feel free to share them with us in the comments section. Let’s keep the community strong and informed.

Stay smart and safe out there—good hunting!

—Thomas (K4SWL)

Tough Bands, Tiny Antenna: An AX1 Activation at Fort Wellington NHS

Note: This first field report from my 2025 trip to Canada happens to coincide with Canada Day (today, July 1, 2025). Happy Canada Day!

by Thomas (VY2SW / K4SWL)

In a previous post, I mentioned that my family was heading north into Canada for a few weeks this summer. This trip wasn’t easy to carve out of our schedule, but we were looking for a bit of escape from all of the Hurricane Helene clean-up—and, frankly, we were craving some family time.

We arrived in Canada (via the Thousand Islands Bridge) on Saturday, June 14, 2025, in the late afternoon. Had it not been such a tiring drive that day, I would have activated Thousand Islands National Park (CA-0099), but honestly? We were all ready to check into our hotel in Brockville, Ontario, take a stroll along the waterfront, and grab some dinner.

Brockville waterfront

The next morning (June 15, 2025), I took a look at the POTA map and determined that we had plenty of time for a park activation before heading into Québec. Several options lay along our route, but one, in particular, caught my attention:

Fort Wellington National Historic Site (CA-4868)

Fort Wellington is a Parks Canada site situated right along the St. Lawrence River, which we were traveling beside. Even better, it was only about a 15-minute drive from our hotel.

We arrived on-site around 10:15 AM local time and immediately noticed the parking area in front of Fort Wellington was barricaded for an event. I saw two Parks Canada rangers standing out front, so I asked them about the event and whether it was okay to park on the street in front of the property. They couldn’t have been kinder.

Turns out, the town was hosting an outdoor BBQ ribs event that Sunday. It’s as if they expected a ham from North Carolina to pick their site for POTA! It was a pretty big event for a town as small as Prescott—there were loads of entertainers, food trucks serving all forms of BBQ, and tours of Fort Wellington.

I asked the rangers if they were familiar with Parks On The Air (they were!) and if I could set up on the NHS property closer to the river and away from all the festivities. They gave me permission.

I should add here that I volunteered not to put any antennas in trees or place stakes in the ground to mount my telescoping carbon fiber pole. As a rule of thumb, I default to my lowest-impact setups when at archaeological or historic sites. I feel it’s not only respectful but also leaves a good impression of ham radio operators for park staff who may encounter activators after me.

My wife and daughters were encouraged to take a free trolley tour of Prescott—how could they resist? They told me later that it was a hoot.

I made my way down to a shady spot under a tree by the river.

To keep things low-impact, I set up my Nemo portable table and Helinox chair, then deployed my KX2/AX1 field kit.

I’ll be honest here…

Propagation had been very rough the previous day, and numbers were indicating challenging conditions during my activation as well. This wasn’t a day I’d normally opt for my most compromised antenna, but here we were. My hope was that I could call CQ on every band possible using the AX1 and somehow gather enough contacts (10 total) to validate the activation.

Backpocket strategy

So here’s the deal: most of us activators aim to get the minimum number of contacts in order to complete a valid activation (10 for POTA, 4 for SOTA).

When I’m activating a park I’ve done numerous times before? I honestly don’t care if I don’t reach 10. I’m just happy to get outdoors and play radio. I try not to let the threat of poor propagation stop me.

However, when I’m activating a new-to-me park, I really want to validate it. I want those 10 contacts—and I’m willing to spend more time on the air to get them.

Technically, since I’m traveling with three other licensed hams (my wife and daughters) and we have two dual-band HTs in the car, I really only need to make four HF contacts. I could make three FM contacts on 2 meters, then three more on 70 cm with my family. That gives me 10 total.

In fact, I also have multiple HF radios and dummy loads in the car, so I could get away with never deploying an antenna at all—I could just log 10 park-to-park contacts with my family.

But where’s the fun in that, right?

Actually, I say that, but it can be fun—in situations where you’re left with no other options—to do P2P contacts with your own crew, as my buddy Vince proves here.

Still, I was determined to log “my ten” all on the HF bands, using five watts into my 4’ AX1 antenna.

The only way to find out if I could? Hit the air!

Gear

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Radio

Antenna

Pack/Case

Logging Pad/Pencil

Chair/Table

Camera/Audio Gear

On The Air

As expected, propagation was rough.

I started calling CQ POTA on 20 meters—the band I knew would likely give me the best chance. Continue reading Tough Bands, Tiny Antenna: An AX1 Activation at Fort Wellington NHS

Mud, Mosquitoes, and Morse: A KH1 Pedestrian Portable Activation on the Yadkin River Trail

by Micah N4MJL

Recently, I examined the POTA app map and discovered a new yellow dot along my work commute that I had not yet activated. I have activated most of the POTA parks between Charlotte, NC and my home in Virginia that are not too far off my route of travel.

Upon further investigation, I learned that the new yellow dot belonged to the Yadkin River State Trail (US-12320). It is over 200 miles long. I chose to attempt activating from the Yadkin River Park on the Davidson County side of the river, just off I-85.

There is a nice walking bridge over the river with benches and historical signs along the walking trail. I thought about activating from one of the benches on the bridge, but there are some large power lines going over the bridge, making some heavy RFI noise on my KH-1.

After exploring the established walking trail, I found some makeshift chairs down by the riverside. It was pretty muddy, and I didn’t feel like wallowing in the mud while throwing a wire in a tree. I decided to use my Elecraft KH-1 whip antenna in the pedestrian mobile configuration.

As soon as I started calling CQ, a swarm of mosquitoes started feasting upon me. It didn’t help that I was wearing shorts and flip-flops.

I had just finished flying a four-day trip in Charlotte (CLT) and was on my way home. I had changed out of my uniform at a rest stop right before this activation. I was supposed to fly three flights today, but because of a maintenance delay, crew scheduling had already re-crewed my last two flights. I was getting home six hours early and getting paid! It usually doesn’t turn out this well for me. Normally, I’m getting junior manned into flying into my day off.

My first couple of contacts on the 20M band came quickly. I logged 8 contacts on the 20M band before they petered out. I noticed that there was a lot of QSB fading occurring. I tried tuning in other activators throughout the country who I should have been hearing just fine on 20M with no success.

My first two contacts on 20M were from Colorado and Arizona. After the 20M band died a silent death, I put on the AXE1 40M loaded coil antenna extender and threw out the longer counterpoise. I was able to log 5 more contacts on the 40M band and 1 contact on the 30M band.

After just over one hour calling CQ, I was able to get 14 contacts with two P2P.

Some people on the POTA Facebook page have commented on my activation photos that the KH-1 whip antenna is “garbage.” I do not think this is the case.

I have lost count of the number of POTA parks that I have successfully activated using the KH-1 whip antenna. Obviously, I would prefer to get a wire up in a tree when possible instead of using the whip antenna. However, many of the parks that I have activated would not have allowed a wire to be hung in a tree. I like using a very small stealth setup that does not attract much attention. I am always surprised when stations start calling me back.

I have also failed to activate many parks due to current band conditions/choice in whip antenna. But these are the things that make ham radio fun.

Small Success Story:

Before I started the activation, I noticed this sign for Davidson County. I took a picture of it so that I would remember to give credit for specific counties in the Logbook of the World for my hunters.

During the activation, after my second contact on 20M, I started getting QRM from close-by stations. The KH1 doesn’t have great filters, and the QSB from stations fading in/out was starting to get confusing. When I finally realized that a station was calling me, sending very slowly with repeats, I realized this station was asking what county I was located in. I grabbed my phone to look at this picture and sent him “QTH Davidson County” twice. The other station responded back with “RR TU 73..”

I am pretty sure it was one of the two stations I had already finished with who was calling me back. Unfortunately, the band conditions were getting bad. The RBN had not picked me up for a bit, and another POTA station started calling CQ right on top of me. The joys of activating QRP during the current solar conditions.

As you all know, I am a very green op! Anything outside of the canned POTA QSO does get difficult for me to copy. I can run my POTA exchanges at 18–20 WPM, but in order to keep up with a ragchew, I’m operating at about the 10–12 WPM range. So for me to copy a message outside of the canned CW POTA exchange during an activation is a small victory for me on my CW journey.

Since the bands have been in pretty rough shape lately, I have been practicing more CW copying with ARRL QST Bulletins from the W1AW archives. It is an awesome resource for new CW ops like myself. You can listen to parts of QST magazine sent in CW, ranging in speeds as slow as 5 WPM up to 40 WPM. After you listen to the message, you can click on the text file to read/grade yourself on what was sent.

13 WPM Code Archive

I give myself an 80%–90% accuracy score at 13 WPM copy. Unfortunately, my copy accuracy takes a giant nosedive when I go up to the next speed of 15 WPM.

In addition to listening to W1AW, I have been playing a lot of MorseRunner. It is a free program that simulates running a contesting station with or without a simulated pile-up. I have been practicing receiving stations from 18–26 WPM. I enjoy trying to break my previous scores copying international and domestic callsigns.

During my long drives commuting to/from work, I have been using Morse Code Ninja.

Practice · Morse Code Ninja

This has been instrumental in my pursuit of head copy. There are numerous exercises, with hyperlinks to many different speeds. The hyperlinks’ default setting opens YouTube, where you can listen to the sessions.

I recommend doing the bulk downloads. This gives you the option to do a bulk download at your chosen speed to your media player of choice. I have downloaded all of the 20 WPM lessons into my iPhone podcast app for offline use. This allows me to access them without being connected to cell or Wi-Fi. I have been working my way through all of the 20 WPM lessons.

The 5-letter word lesson that I am currently working through is just over 5 hours of riveting CW material! I’m definitely not near the land of head copying, but I’m slowly working my way there!

72 and thanks for hunting!
~ N4MJL

Moonlander to the Rescue: A Tabletop FT-818 POTA Activation on the Blue Ridge Parkway

On Friday, May 23, 2025, I had a good 90 or so minutes to play radio, and the Blue Ridge Parkway (as always) is the easiest hit for me when running around in the Asheville, NC area.

I was in the western part of Asheville, though, so I needed to find a site to set up. I’d packed my Yaesu FT-818, which is very much a tabletop radio (compared with, say, my Elecraft KX2 or KH1). A picnic table would have been ideal, but there are no sites on the BRP with picnic tables in the western part of town.

I could have driven a bit further to Lake Powhatan, but it would have cut 20 or so minutes out of my activation and I’d rather opt for more time on the air than the convenience of a picnic table.

Fortunately, I packed a secret weapon—one I’d taken to Hamvention weekend and was still in the car…

The Nemo Moonlander Portable Table

Moonlander with extension legs (Photo by Nemo)

There’s a story behind this table.

Back in November 2023, when we were recording the “Holiday Shopping Show” on the Ham Radio Workbench Podcast, my dear friend George (KJ6VU)—who shares a passion for quality gear—suggested that I invest in a Nemo Moonlander portable table [note: QRPer Amazon affiliate link].

I’ll be honest: I had some credit either on Amazon or REI (I can’t remember) and decided to make the purchase based solely on George’s recommendation.

This was a splurge since the Moonlander costs around $150–180 US (!!!), depending on the color variation. When I purchased mine, I believe I paid about $160. In my book, that’s a lot of money for a portable table.

Moonlander top (Photo by Nemo)

George’s selling point was that it’s the only portable table he’d used that was actually super sturdy and functional. The table surface is strong, the table has two heights (with and without the legs installed), and it folds flat. It’s not super lightweight like some portable table options on the market, but it is adaptable and useful.

When I received the Moonlander, I was very pleased with the design: it was everything George had described. The surface is so strong I could put a heavy object on it and the table wouldn’t buckle. The table, if anything, feels over-engineered. I like that.

The hinges and leg storage is beefy (Photo by Nemo)

Thing is, though, I hardly ever thought about taking this little table out to the field with me with POTA or SOTA in mind. We used it a bit for family picnics, but I tended to default to my smaller portable radios combined with a kneeboard to play radio in the field where there are no picnic tables or benches to set up.

In fact, I believe the first time I used this little table in a field radio outing was this past December (one full year after I’d purchased it) for this Christmas Eve video.

During that outing, I only used the table to hold my coffee and some Christmas cookies. I still used my kneeboard to hold my KX2.

I realized during that outing, though, that the height of the Moonlander table—with the legs installed—was about perfect for the height of my much-loved Helinox backpack chair. With it set up next to the chair, it was a great ergonomic height for me to reach things on the table.

Two months later, in early February, I took the Nemo Moonlander to the field and thought I’d experiment with using it to hold my radio and key. For some reason, I can’t find this field report or video in my archives (I’ll need to check my hard drive once I’m back from my Canada travels). Here’s a photo from that activation:

This activation taught me that the Moonlander is actually incredibly functional and gives me the flexibility to use my larger portables like the TR-45L, Argonaut V or VI, K2, RGO One, or my FT-818 (the subject of this field report) a proper place to operate.

I had not recommended the Nemo Moonlander up to this point on QRPer.com because I felt like it was just too pricey for something that had limited utility for field radio operating. My mind has completely changed on this point, though! Yes, it’s very pricey and, yes, I’m sure there are cheaper third-party knock-offs of this design already, but I’m very pleased with this purchase. I feel like the Moonlander will last me the rest of my days. The folding design is so clever. Check out this from Nemo showing the components and how it can be set up:

In short, I’ve really done a 180 here: the Moonlander—very much an impulse purchase at the time with a touch of buyer’s remorse—has become one of my favorite field accessories.

Back to our field report…

I drove to a site on the Blue Ridge Parkway near the bridge that crosses I-26 where there’s an easy pull-off and parking spot for a few cars. I’ve activated this particular site at least once before.

I walked into the woods perhaps 10 meters and started setting up my table and radio gear.

I was in a bit of pain that day, and I mention this in the video because I was a little concerned I might have difficulty sitting in my hiking chair so close to the ground. The previous evening, when walking to my neighbor’s house on a path in the woods, I slipped on a large white oak trunk. I landed on the right side of my chest on the log. The pain was significant enough earlier the next morning (the day of this activation) I set up an appointment at my doctor’s office and they made a few chest x-rays. Fortunately, it was just bruised ribs. Also fortunately, it didn’t cause me too many problems during this activation—I just had to be careful how I moved about.

I set up the Yaesu FT-818 in short order and deployed my end-fed half-wave antenna knowing that it would give me good coverage sans ATU on the 20 and 40 meter bands.

Band conditions had been so crappy, I wasn’t sure what to expect once I hopped on the air.

Fortunately, it turned out that propagation was pretty solid that day…

Gear

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Radio and Battery System

Antenna & Cable Assembly

Arborist Throw Line

Key and Accessories

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Camera and Audio

On The Air

I started calling CQ POTA on the 20 meter band and was rewarded with a nice stream of adept POTA hunters calling. Continue reading Moonlander to the Rescue: A Tabletop FT-818 POTA Activation on the Blue Ridge Parkway

Hot Day, Cool QRP: Scott’s Twofer Activation at Iroquoia Heights and Bruce Trail

Many thanks to Scott (VA3EKR) who shares the following guest post which was originally posted on his blog:


June 22, 2025, Iroquoia Heights Conservation Area (CA-1447)

by Scott (VA3EKR)

It was a very hot day, and a lovely time to go into the woods, and I thought I would try out this POTA spot. It is a 2-fer, with the Bruce Trail (CA-5628) as long as you get your placement correctly.

When I left the car it was 38°C, so I took a full litre of water with ice in the thermos. I probably should have taken more, but this activation required a lot more carrying than usual.

I parked in this neighborhood park (Chedoke Radial Trail), that had parking for 2 hours, and it didn’t cost anything.

From the parking lot, it was a small walk under the power lines towards the Bruce Trail.

Just beyond was a sign for the conservation area, giving a map.

I walked at a slow-pace for about a half hour, and did not see any ideal places to activate. The woods had a lot of tall grass, and after getting 4 ticks last time, I was not keen on long grass. After getting a little tired from walking, I decided to go down a small Bruce Trail tributary trail. It was a single-track trail, frequented by mountain bikers, so not ideal, but I hoped that the heat would keep the crowds away.

I picked a tree that had some overhanging branches and a small piece of short grass that I could sit on, and keep my deployment off the main trail as much as possible.

I used a QRP-guys random wire antenna with a 9:1 transformer, and managed to get the radiating element fairly high.

The bands were fairly good. I did have some unexpected difficulty with my Begali key, when it stopped transmitting dits. It happened in the middle of a QSO call with a BARC club colleague, Chris, VA3CJW. I wonder if the key got some dirt or other contamination in it. I forgot to bring my reading glasses, so I swapped in a BaMaTech key instead. Definitely a case of it being a great idea to bring spare things in your bag!

I kept to 20m CW, using the KX2, and 5W, making two park-to-park QSOs. Here’s a map.

On the way back I saw a family of deer crossing the trail. I only managed to get one in a photo. Here is a picture of the adorable deer.

POTA QRP: A Mid-Week Reset with the FT-818 and Spooltenna!

by Thomas (K4SWL)

On Wednesday, May 21, 2025, I had another opportunity to squeeze in a POTA activation during a late morning drive back to the mountains after visiting my father, who was in the hospital at the time.

Once again, I chose one of my favorite POTA sites that I don’t get to visit nearly enough these days: Tuttle Educational State Forest.

Tuttle Educational State Forest (US-4861)

The weather that Wednesday was nearly perfect, and I was really looking forward to getting on the air.

One advantage of early-to-late morning activations this time of year is avoiding those unpredictable afternoon pop-up thunderstorms that are so common and can chase one off the air.

I picked out a shady picnic table beneath a canopy of trees, hoping it would provide a few good options for hanging a sloper.

Spooltenna Time!

As I mention in the activation video, I was an early beta tester of the Spooltenna. Just before Hamvention, Rob (KO4HUI) sent me a final production version so mine would match what’s now shipping. This was the first time I’d deployed the production model in a sloper configuration.

Full disclosure: I didn’t pay for this antenna, as I volunteered as a beta tester. Rob and his wife Christi also invited QRPer to join the affiliate program, so QRPer earns a small percentage of any sale made through our link.

When I surveyed the trees around my site, I realized I didn’t immediately see a branch directly over my operating position. That’s really what a sloper needs—especially with this antenna—because the feed point is elevated and a bit heavier than something like the far end of an EFHW radiator. I also wanted to maximize height using my 25′ cable assembly, which meant a more vertical hang would be best.

Eventually, I spotted the perfect branch. It took a couple tosses with the throw line–my window to hit it was narrow–but that’s part of the fun!

Slopers have great performance characteristics, so it was worth the (wee bit of) extra effort. And to be fair, if I deployed slopers more often, I’d probably be a lot better at it!

With the Spooltenna deployed, I simply set up my Yaesu FT-818 and I quickly checked the SWR on 20 meters where I planned to start the activation. Turns out, it was a near perfect match! Woo hoo!

Time to get this activation started!

Gear

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Radio and Battery System

Antenna & Cable Assembly

Arborist Throw Line

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Camera and Audio

On The Air

I started calling CQ POTA and was pleasantly surprised: 20 meters had some life! Continue reading POTA QRP: A Mid-Week Reset with the FT-818 and Spooltenna!

Toilets on the Air (TOTA) @ HOPE_16

At the upcoming HOPE_16 in NYC, Todd (KE2AEQ) is launching a brilliantly fun, tongue-in-cheek radio activity called Toilets on the Air (TOTA) — inspired by Georg (DH5GH) and the German hacker scene.

Yes, Toilets on the Air. But before you flush the idea entirely (sorry!) read on…

Much like POTA and SOTA, TOTA is about getting on the air from a defined activation zone — in this case, just outside conference restrooms.

It’s lighthearted, but there’s a serious side too: TOTA promotes hands-on, hyper-local ham radio experimentation in environments that aren’t traditionally OTA-friendly. Modes like SSTV, APRS, and even CW can shine in this creatively constrained space.

In Todd’s own words, it’s a way “to have fun, to experiment, and to use our precious spectrum space.” I couldn’t agree more.

Check out Todd’s post here: https://toddmazierski.com/radio/toilets-on-the-air-hope-16

And the official TOTA watch site: https://hope-16.totawatch.de/

Todd, if you’re reading this — I think TOTA needs to be rolled-out at Hamvention next year. Just sayin’.

72,
Thomas (K4SWL)

Family Camping/POTA in Cloudland Canyon State Park, GA

by Micah (N4MJL)

I strategically suggested to my family a camping trip to Cloudland Canyon State Park in Georgia (US-2169).

It is located in northwestern Georgia, just south of Chattanooga, TN. I sold the idea to the family under the premise that it was centrally located for everyone. Cloudland Canyon State Park was about six-ish hours driving for my parents from southeast Missouri, six-ish hours driving for my sister’s family from the Florida panhandle, and seven-ish hours driving for my family in Virginia.

While that sounds reasonable enough, I actually had a deeper plan. I sold the idea to my wife that she could leave my daughter and me for two days at the state park, and she could go visit one of her college girlfriends in Huntsville, Alabama. Huntsville was less than a two-hour drive from where we would be camping. She really liked that idea because she had been talking about doing a trip down to Huntsville for a while.

That was the bait, and now for the hook. My condition was if she got to visit her friend in Huntsville, then she needed to help me get two POTA activations! As one of my old flight Instructors used to say, “plan your work and work your plan.

I am trying to do a POTA activation in every US state. At the time of the planing of this trip, I had not yet activated any parks in Georgia or Alabama. The second POTA activation that I wanted to complete was 40 minutes across the boarder in Alabama, Crow Creek Nature Refuge (US-9880).

Our three families were able to get camping spots all next to each other on the east rim at the state park. My daughter, who is five years old, was over joyed to be camping with her two cousins who are eight and nine years old along with her grandparents! My condolences to our fellow camping neighbors, because we were definitely the loudest group camping on the East and West rim combined. Haha

Side story: one week before leaving for this camping trip I had an unscheduled long layover, due to aircraft maintenance and flight duty limitations, in Atlanta, Georgia (Delta Country). I try to avoid Atlanta, but the Company put me up in a hotel in downtown Atlanta, three blocks away from Centennial Olympic State Park (US-9798). Fortunately, my Elecraft KH-1 goes every where I go, and I was able to activate that park using the whip Antenna in the pedestrian mobile configuration on 20M band.

Day 1: Camping at the park


My Dad and I rounded up the kids to hike the short Water Falls Trail. This was a beautiful hike down into the canyon to see Cherokee and Hemlock falls. The views on the hike did not disappoint!


Much to the kids’ dismay, there are signs everywhere about no swimming or wading in the water anywhere along the falls on Daniel Creek! Reading between the lines, I think it has to do with the number of rescues that took place and the amount of pedestrian traffic that was occurring. My wife talked to the ranger, and he told us about several spots further up on Daniel Creek where it was permissible to play in the water.

Day 2

We took the ranger’s advice and drove to Sitton’s Gulch Trail Head! From here, the ranger said it was about a 1/4-mile walk to the creek where swimming was permissible along Daniel Creek. We brought a hammock, chairs, and lunch, making an afternoon of swimming in the creek. The cousins enjoyed swimming in the cold mountain streams until their lips turned blue and purple! The girls would take breaks to warm up and eat snacks, only long enough to delay the onset of early stages of hypothermia before jumping back in to do it all over again!


Day 3

Since my wife was planning to leave that evening to drive to Huntsville to visit her friend for two days, I decided that after breakfast would be a great time for my dad (AC0UT) and me to get a POTA activation at the campground! Due to all the RFI interference from the trailers in the campground, we drove over to the parking lot of the Main Overlook. In front of our picnic table, you can see the railing for the Main Overlook trail, where you can enjoy some pretty incredible views! Continue reading Family Camping/POTA in Cloudland Canyon State Park, GA

Putting the New Radioddity HF-009 Portable Vertical Antenna on the Air — QRP Style!

by Thomas (K4SWL)

The day before I left on my week-long FDIM/Hamvention trip, I received a package in the mail from Radioddity containing their soon-to-be-released HF-009 vertical antenna.

In the spirit of full disclosure: Radioddity is not only a sponsor of QRPer, but we’re also an affiliate—meaning that if you purchase items via our affiliate link, we receive a small percentage of the sale, and you get a small discount. Radioddity sent this antenna to me free of charge. I don’t know yet if they want it back after I evaluate it, but let’s assume (for future transparency) that they don’t.

My Bias

When I evaluate gear, I like to take you along for the ride—and that means actually using the gear in the field.

It took me a few weeks to get around to evaluating the HF-009. Not only was I swamped post-Hamvention, but honestly, a part of me wasn’t looking forward to tinkering with this antenna.

The HF-009 is a multi-band vertical that uses a slide‑and‑tap center coil system. I know many operators who love sliding-coil verticals, but I’m just not one of them.

Early on in my POTA days, based on reader recommendations, I purchased the venerable Wolf River Coils vertical antenna. It uses a sliding coil system—like the HF-009—though its coil is located at the base of the antenna.

I immediately saw why these antennas are so popular: they deliver multi-band performance without needing an ATU, and they’re surprisingly effective. I had some fantastic activations with my WRC TIA.

My Wolf River Coils “TIA” vertical antenna on Mount Mitchell

But I eventually sold the TIA after discovering the Chelegance MC-750, which I found much easier to deploy and use.

Sliding coil antennas can be a pain to tune. Most friends who use them also carry an antenna analyzer to help dial in the best SWR before hitting the airwaves. While I eventually learned the “sweet spots” on the WRC coil, I often had to tweak it—especially on lower bands like 30, 40, and 80 meters. The more coil you use, the higher the Q—and the narrower the bandwidth.

Personally, I prefer antennas I can just set and forget (like the MC-750), or those that are non-resonant and rely on an ATU for matching (like the Chameleon MPAS Lite).

To be clear, this is just my preference. Center- and base-loaded coil verticals are very popular for good reason: they work. The more you use them, the easier they get. They’re just not my default go-to.

Getting Started

Normally, I film the “discovery” phase of a new antenna or radio in the field—experiencing the full unboxing and set-up for the first time on video, in real time.

But with the HF-009, I wasn’t comfortable doing that. Given my previous experience and bias, I decided to first test the antenna at the QTH, identify good match points for 40, 30, 20, and 17 meters, and then take it to the field.

I set up the HF-009 at home, grabbed my RigExpert analyzer, and spent about 15 minutes finding match points on the coil. Honestly? It wasn’t as tedious as I’d expected.

Because the coil is mounted at a comfortable height—not at the base like the WRC—adjustments were easier. The coil itself is smooth to adjust; I suspect it uses a finer gauge wire than the WRC, which has a clickier feel. The HF-009 is much more fluid.

To remember the coil positions, I took photos of the slider settings and saved them in the Notes app on my iPhone for quick field reference. That turned out to be a very good idea.

Very First Impressions

Before I get ahead of myself, here are a few things I immediately liked about the HF-009:

  • It comes with everything you need, including a coax cable and an SO-239 to BNC adapter.
  • The included carrying case is well-organized and feels solid.
  • When broken down, it’s compact and easy to pack, with shorter segment sections that fit nicely into a backpack.
  • The slider mechanism is smooth, responsive, and placed at a comfortable height.
  • The loading coil is sealed—unlike my WRC vertical, whose exposed coil was affected by moisture.
  • Overall, build quality feels excellent.

On The Air: Blue Ridge Parkway (US-3378)

Of course, the best way to put the HF-009 through its paces was to take it to a park and put it on the air.

On Monday, June 9, 2025, I dropped my daughter off at a class and had well over an hour to play radio, so the HF-009 came with me to the Folk Art Center picnic area on the Blue Ridge Parkway!

Since I’d set up the HF-009 once before, it came together very quickly. In fact, I think it’s right there with the MC-750 in deployment time, which is very much a good thing.

I decided to pair the HF-009 with my Penntek TR-45L Skinny. Why? To be honest, I didn’t fully trust the SWR to be acceptable using only the photos I’d taken for the coil slider placement. The TR-45L has a beautiful analog SWR meter, which I find much easier to read in situations where I might need to fine-tune an antenna.

I also packed my RigExpert analyzer because it allows me to make adjustments as I read the SWR.

Turns out, though? It wasn’t an issue at all. During the activation (spoiler alert), I moved from band to band and—solely based on the photos I took of the slider switch position—the SWR was spot-on each time!

Gear

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Radio

  • Penntek TR-45L “Skinny”

Antenna System

Key/Cable

Pack/Cover

Battery

Logging

Camera and Audio

On The Air

I positioned the slider switch to the 20-meter position I had noted using this photo from back home.

My 20 meter setting photo

When I checked the SWR on the TR-45L’s analog meter, it was nearly perfect. I was surprised.

I then hopped on 20 meters and started calling CQ POTA. Continue reading Putting the New Radioddity HF-009 Portable Vertical Antenna on the Air — QRP Style!

New Summer, New Radio: Field Testing the Thunderbird

by Sam Duwe (WN5C)

I really like homebrew radio. I’m also seeing a pattern: I build through the winter and the spring, get rusty at CW, and then spend the summer operating POTA until my ears bleed. So it’s good to be back! Here’s a quick report of a new radio I built and its maiden voyage.

For the past eight months I have worked on what I call the Thunderbird (v2) named after my local state park, Lake Thunderbird. It’s an 8-band (80-10 meters) 5-watt CW transceiver with SSB receive. I emphasized the latter (decent crystal filter and big speaker/audio amplifier) because while I don’t often use a microphone, listening to voice is both comforting and exciting – I love when the VK and ZL stations drift in late at night. It also works as a somewhat competent general coverage receiver for short wave listening. I built it to operate both in the shack and on a picnic table, it unfortunately is a bit heavy because I got greedy and kept adding bands.

I guess I “designed” this radio, but as I discussed before on this site I’m just a guy with no engineering background who learned to solder and read a schematic diagram. But by doing so I could understand and modify the clever circuits from the radios we love and then figure out how to make them play nicely together.

I built the radio using Manhattan construction on copper boards, and then stacked these and fit them into a metal project box with 3D printed front and rear panels. It’s a bit fiddly and messy, but I feel like I’m ready to challenge my family to a game of Operation! The nice thing about stacking the boards is that I can shield the receiver from the transmitter and digital components.

The bottom board houses the band-pass filters, receiver, and audio chain. This was my first attempt at building a superheterodyne receiver so I was a bit nervous (although this video calmed me down). The receiver takes inspiration from John Dillon’s (WA3RNC) TR-35. He uses a clever design to narrow (for CW) and widen (for SBB) the crystal filter. I also cribbed his excellent idea for the LED signal-strength meter. The audio chain was modified from the Elecraft KX1 which includes an AGC circuit. I learned last summer how important AGC is when I was on Vail Pass in Colorado and actually fell out of my chair and groaned in pain when a guy with an amp called me back. I also hand built an NM0S Hi-Per-Mite to switch in when I want a steep 200-Hz filter. This is an awesome circuit that you can buy in kit form.

Like I mentioned, I got greedy and experienced project creep. Honestly, I would have been super happy with 40, 30, and 20 meters, and 17 would be nice. But so would 15, and 10, and even 12 (a band that I only have a handful of contacts on ever). And why not 80 meters? So I modified Steve Weber’s (KD1JV) Tri-Bander relay-switched band-pass filter design to add them all. I also figured out how to build a preamp for the high bands. I built a secondary audio amp to drive a 3-inch 3-watt 8-ohm speaker for annoying my family at night.

The lower board with the receiver, band-pass filter board, and audio chain.

The top board houses the transmitter and the digital components. The transmitter is based on Steve Weber’s design because it’s perfect and is used in some form by many QRP CW rigs. It gives me between 4-6 watts output on all bands. Like with the receiver, I used his design for the low-pass filter board.

The heart of the transceiver is an Arduino/si5351 combination and the Arduino code written by Paul Taylor (VK3HN). Besides doing the heavy lifting of aiding me pull audio out of the ether his code and associated circuits are versatile and clever, including automatic filter switching, CW messages, and both keyer and straight key support.

Although I am mildly terrified of AI, ChatGPT helped me add all kinds of bells and whistles (on my own I’m not a very good programmer) such as RIT, audio filter switching, keyer speed control, and a simple but detailed display that shows the relevant information. The panel controls are all knobs and switches.

The upper board with the transmitter, low-pass filter board, and digital components.

Between the sub-par band conditions as of late, and my neighborhood’s increasingly nightmarish RFI, testing the radio’s real-world performance was difficult. Luckily I have an IC-703 on the bench and it keeps me sane. The Thunderbird isn’t as good but it’s maybe 85% of the way there (when I turn off the DSP and noise blanker on the Icom)? It has been disconcerting when 10-meter FT8 isn’t coming through, but apparently that’s the sun’s fault and not mine. But this radio was built for POTA, so onwards to my park!

For an activation it was a rush job. I had just finished with the fixing a few loose connections when I realized I had about an hour of time before picking my kid up from camp. So I headed to the park with the radio, my favorite easy-to-deploy antenna [QRPer affiliate link], and my ATU-10 (doubles both as a tuner and check to see if the radio actually works).

There has been a lot of rain here lately so my usual spot was underwater. As I was setting up on the high ground a car drove past me multiple times. I figured I was either in trouble or it was a ham, and fortunately it was the latter. Larry (WA5NTF) and I had a nice chat and he graciously drove across the bay to absolutely clean up on digital. For me, I spent about 30 minutes on 20-meters, got 25 contacts, and then failed on the high bands. This is my first solar-cycle peak: get it in gear, Sun.

A few observations: I really liked the speaker! I was away from others and could use it without invoking ire, and it was freeing. Same with the message function which helped because it wasn’t a day of pileups. I also am so used to an S6 noise level on 20-meter SSB that when I first started the radio I assumed it was broken, so quiet. What a difference being out of the city makes.

But it worked! I have some trips planned for the summer and fall to the Southwest so I can’t wait to lug this box to some weird places. And I’ll hopefully be operating locally quite a bit more. Hope to hear you on the air, hopefully on the high bands!

And a postscript, I’m not going to be a homebrew proselytizer, but if you have an inkling to try something new a great project is the SolderSmoke direct conversion receiver (I started with something similar). On this page there is a link to their active Discord server with friendly people and lots of guides on how to hand build a 40-meter receiver. Paired with a simple transmitter it would make POTA (even more) ridiculously fun.

72, Sam

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