Tag Archives: QRP

Articles, Digital Modes, Guest Posts, How To, Portable, QRP, QRPp

Beyond the Beacon: Conrad Discovers the Unexpected Benefits of WSPR

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Many thanks to Conrad (N2YCH) who shares the following field report:

QRPppppp….WSPR

By: Conrad Trautmann (N2YCH)

WSPR, or Weak Signal Propagation Reporter, is a digital mode you can select within WSJT-X. You can use the data that’s generated by the WSPR network to check your own antenna’s performance for transmitting and receiving and also to see what paths are open by band at a particular time of day from your QTH. Recently, I’ve been using WSPR to improve my own antenna systems and to help reduce local noise sources.

Originally developed by Joe Taylor, K1JT, an approximately two minute QRP transmission contains the originating station’s call sign, the maidenhead grid locator and the transmit power level being used. Stations typically use 250mw up to 5watts when they send these signals. WSJT-X allows you to select how often you want to send this transmission and what bands to transmit on. There’s an embedded schedule in WSJT-X that allows “band-hopping” for stations using a multiband antenna to transmit on different bands. When not transmitting, it listens for and decodes other stations transmitting and can post “spots” of those stations to the WSPR network database.

WSJT-X WSPR mode
WSPR Band Hopping Schedule (click to enlarge)

Here on QRPer.com, Thomas, K4SWL posted in this field report what the various flavors of QRP power levels are…

  • QRP: 5 watts to 1 watt (for some contest 10 watts = SSB QRP)
  • QRPp: Less than 1 watt to 100 mw
  • QRPpp: Less than 100mw

Did you know that there are more than 3,000 WSPR HF beacons running on all of the amateur bands all over the world at QRP power or less? Many are running 250mw or less. If you open up WSJT-X and select the WSPR mode, you’ll see that the pull down for power levels give you these options:

  • 37dbm = 5w
  • 33dbm = 2w
  • 30dbm = 1w
  • 27dbm = 500mw
  • 23dbm = 200mw
  • 20dbm = 100mw
  • 17dbm = 50mw
  • 13dbm = 20mw
  • 10dbm = 10mw
  • 7dbm = 5mw
  • 3dbm = 2mw
  • 0dbm = 1mw

You could transmit your own beacon if you choose to using WSJT-X. You can also receive many of the 3,000+ beacons that are on the air right now if you wanted.

Why, you ask?

Let me tell you about the WSPR journey I’ve taken over the past few months and how what I’ve learned has benefitted me, my station and my antennas. Here’s how extreme QRPpp signals can help all of us.

I’m an avid digital operator, and I’ve tested many of the digital modes that WSJT-X, FLDigi, VarAC and others have to offer.

WSPR (Weak Signal Propagation Reporter) is a program embedded as a mode in WSJT-X and you can set it to transmit at the various power levels I listed above and band hop to different bands if your antenna can support those frequencies. When it’s not transmitting, it will receive and post the beacons it hears to the WSPRnet.org web site. For anyone familiar with pskreporter.info, WSPRnet.org is similar in that it provides maps of where and when “spots” are received and the relative signal strength the signals were when received by station, the mode and frequency.

After setting my station to transmit and receive on WSPR and looking at my spots on WSPRnet.org that were reported by receiving stations over the previous day, it was a thrill to see my 250mw signal making it out all over the world. Amazing actually, that such a small amount of power could travel that far. 250mw to Antarctica? That’s pretty good.

I bought a QRP-Labs QCX transceiver and the external companion GPS clock, which supports running WSPR transmission stand alone, without tying up a computer. Then I learned about the Sotabeams WSPRLite Antenna Tester (a 250mw WSPR transmitter) and the various WSPR transmitters offered by ZachTek which can also run without needing a computer.

My goal was to have WSPR beacons transmitting on as many bands as possible. Combining them into a single, multiband antenna posed its own problems, which is a topic for another article. However, all of these solutions just transmitted. I was hoping to also be able to receive and post spots as well.

Then, QRP-Labs (shout out to Hans Summers) came out with the QDX and then the QMX, both of which connect to a PC and are controlled by WSJT-X to do the band hopping transmitting and receiving. Like FT8, WSPR does depend on timing to work best, so using an external GPS clock for the QCX or connecting a QDX or QMX to a computer that can get it’s time from the internet can help keep the transmission cycles in sync with the receiver sites for best reception results.

Various WSPR transmitters and transceivers

This is cool stuff, but still, what’s the point? That’s when a friend I made in the WSPR community, Tom, WA2TP pointed out how to use all of these beacons to improve my station’s receiving capabilities. I have a good HF receiver and a dipole antenna and a hexbeam on a rotor and I figured I was good to go. I was making contacts without any problems. Tom told me this: “It’s all about the noise.”

He recommended using a wideband SDR called a Kiwi that can view the entire HF spectrum from 0 -30MHz on a waterfall at one time. My ICOM IC-7610 can connect to a PC and work with HDSDR software which has a waterfall, but it will only show you the spectrum of the particular band you’re on, not the entire HF spectrum at once. The Kiwi shows the entire spectrum from 0 to 30 MHz and when set up just right, you can see noise in there…a lot of noise, emanating from all sorts of things.

If you’re trying to receive a 250mw WSPR beacon signal transmitting from Australia, the noise from the after-market, wall-wart switching power supply connected to your cell phone charger a few feet away from your antenna could be way noisier and will blank that VK beacon right out. Your antenna and ability to hear distant signals is only as good as how low or quiet the local QRM is that we all have to deal with.

So began my hunt for noise, with a lot of guidance from folks with experience at it. Continue reading Beyond the Beacon: Conrad Discovers the Unexpected Benefits of WSPR →

Field Reports, Morse Code, New Products, News, Portable, POTA, QRP, Travel, Videos

Carolina Beach State Park: A QRP Oasis Amidst the Summer Heat and Activities

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Tuesday, July 9, 2024, was a very radio-active day!

I was in Wilmington, North Carolina, and that morning, I had the privilege of activating the Battleship North Carolina from inside the battleship. Click here to read the field report and watch the video.

In short? It was amazing and certainly a fabulous way to start the day.

We were in Wilmington because one of my daughters was attending a week-long program at NC State University, and the other was attending a similar program at UNC Wilmington.

That Tuesday afternoon, after dropping my daughter off on the campus of UNC Wilmington, my wife suggested we hit Carolina Beach State Park for a POTA activation. It didn’t take me a microsecond to agree to that plan!

Carolina Beach State Park (US-2722)

Carolina Beach State Park, located just south of Wilmington, is a unique spot full of natural wonders. The park covers over 760 acres of Pleasure Island, with diverse habitats ranging from the impressive 50-foot Sugarloaf Dune (which used to be used as a navigational aid) to the fascinating limesink ponds, each with its own special plant community.

The park is also home to the Venus flytrap, a rare carnivorous plant found only in a small part of the Carolinas. You can explore the park’s trails, winding through maritime forests and maybe even catching a glimpse of these fascinating plants in action. The park also has a marina for easy access to the Cape Fear River and the Intracoastal Waterway, making it a great spot for boating and fishing.

We arrived at the park a little before 4:00 PM local time. Had it not been so hot and humid, we would have hit one of the park’s trails before finding a spot to do POTA, but the weather being what it was, both of us were happy to spend time in the shade.

We pulled into the main picnic area and quickly found a spot to set up. As I pulled out my radio and camera gear, my wife, Heather, pulled out her travel watercolor kit, all packed in a Tom Bihn HLT1 (we’re a pack geek family!).

When Heather joins me on POTA activations, she almost always sets up somewhere and paints while I activate. I love the fact that we both enjoy the experience in different ways.

In fact, my buddy Steve (KC5F), who is also an avid POTA activator, performs almost all of his activations with his wife, who also paints while he activates. He told me that she likes a good couple of hours of painting, so he typically racks up a lot of contacts in that amount of time.

Setting Up

The first thing I did was set up my Thermacell mosquito repeller–it needs a few minutes to do its thing and clear out the mozzies. The model I carry, the “backpacker,” fits a standard backpacking stove canister. I’ve recommended this one to many other POTA ops who operate in areas with mosquitoes–so far, it’s never let me down!

Also, I want to send a big shout-out to Alanna (K4AAC) and Bob (K4RLC) for making this activation even more civilized.

After watching an activation earlier this year at Tuttle Educational State Forest, where I placed my KX2 and logbook on a wet and dirty picnic table–covered in pollen and other tree bits–Alanna ordered a blue Gingham picnic tablecloth and whisk and had it sent to me.

I’ve had this tablecloth packed in the go-box I keep in the Subaru, and this activation was the perfect time to put it to use because the table I chose needed cleaning!

Thanks, Bob and Alanna!

Next, I deployed my PackTenna 9:1 End-Fed Random Wire antenna and paired it with my Elecraft KX2.

New paddle mount!

I did (finally) get to try out a new piece of kit in the field: a newly-designed paddle mount from Steve (KB3SII) at QRPworks.

Steve handed this prototype mount to me at Hamvention this year. It’s an updated design of one we tested last year.

You basically attach the mount to the front of the KX2 (or KX3) and place a paddle like the Bamakey TP-III that has strong rare earth magnets. The paddle locks onto the metal pad and makes for a rock-solid, ergonomic keying experience.

Steve also sent me two short 3.5mm angled cords to connect the key to the radio, but I forgot to pack them for the trip. My standard paddle cable worked fine, although I had to angle the TP-III slightly.

Note that Steve plans to have these paddle mounts in production and available on the QRPworks website in the coming weeks. When they’re available, I’ll post a direct link.

With the KX2 set up and ready to go, it was time to hit the air!

Gear

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On The Air

I started calling CQ POTA on 17M and discovered that it was a fairly quiet band. Nonetheless, I worked two stations in about six minutes. Secretly, I was hoping there might be a 17M path into Europe, but then again, it was a bit late in the day for that (and it seemed 17M wasn’t terribly energized). Continue reading Carolina Beach State Park: A QRP Oasis Amidst the Summer Heat and Activities →

Field Reports, News, Portable, POTA, QRP, Videos

Do I make videos of all of my field activations?

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This past weekend, I attended the WCARS hamfest in Waynesville, North Carolina. My buddy Vlado (N3CZ) and I purchased a few indoor tables to sell some gear we no longer needed.

I also gave a short presentation about the ins and outs of going QRP. It was a lot of fun!

When I go to a hamfest, I spend a great deal of time salivating over the vintage stuff. This R-388 would look brilliant in my radio room! Wish I had the space.

I was surprised at how many people introduced themselves as readers, subscribers, and supporters. It blew my mind since this is a smaller regional hamfest—not Hamvention or Huntsville!

One reader asked a question I get a lot: “Do you film all of your activations?“

The answer is no, but I probably film 80% or more. I enjoy making activation videos. When I do a real-time video, I feel like you’re there with me, and I really enjoy that.

Even though I’ve simplified my camera gear, filming still adds time to my activations. I have to plan the setup so you can easily follow along as I log, and I need to ensure the audio is acceptable. When I’m really pressed for time, I skip making a video.

In addition, each activation video and field report takes me at least four hours to prepare. Unlike most YouTubers, the video editing time is minimal, but the field report takes time: preparing the text, photos, layout, links, etc. It’s a labor of love, though, and I enjoy the process.

Speaking of offline activations…

Lunch with Vlado isn’t complete without Baklava.

After the hamfest, Vlado and I enjoyed lunch (at this brilliant Italian restaurant), then I drove to Sylva to pick up Hazel (who had been staying with my brother-in-law).

On the way home, I passed the Blue Ridge Parkway, so I did an impromptu POTA activation at the Balsam Gap Overlook (which is overgrown and not much of an overlook anymore, but still a great spot for POTA).

I decided to make a short video for YouTube answering the reader’s question.

There’s some irony in making a video stating that I don’t always make videos of activations!

Click here to watch on YouTube.

It was a fun and quick activation: ten contacts in thirteen minutes. I used my Elecraft KX2 and PackTenna 20M EFHW—always an effective combo.

Hazel enjoyed laying on the grass next to me.

All in all, a fun little activation! I was in and out of there in 22 minutes. Had I filmed this, it would have taken more than 30 minutes.

Here’s my log sheet:

Here’s the QSO Map:

Screenshot

I’ve got some great activations in the pipeline and look forward to publishing them this month!

Thank you for coming along on the journey!

Cheers & 72,
Thomas (K4SWL)

Field Reports, Guest Posts, News, Portable, POTA, QRP, Videos

Lee’s QRP CW POTA Adventure on Black-a-Tor

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Black-A-Tor Copse National Nature ReserveMany thanks to Lee (M0VKR) who shares the following field report and video:

A QRP CW POTA Adventure on Black-a-Tor

by Lee (M0VKR)

It was another sunny morning when my wife Joanne and I set off for a new mini adventure. Our destination was Black-a-Tor on Dartmoor, Devon, a scenic location ideal for a Parks on the Air (POTA) activation. We had not activated this park before so didn’t know what to expect. With excitement abound and a bit of nervous anticipation after looking at the propagation figures, we parked their car at Meldon Dam Reservoir car park, the starting point of our trek.

The weather was pleasantly warm as we began the journey, following a meandering river that gently led us towards our destination. The path was relatively easy, allowing us to enjoy the natural beauty surrounding us. At one point a horse fly latched onto my arm, and although I indicated my displeasure it continued to harass me for a good 10 minutes or so, before eventually giving up.

As we hiked, the silhouette of Black-a-Tor gradually appeared on the horizon, beckoning us closer. A short climb later, we found ourselves at the summit, ready to set up for our POTA activation.

After a delicious boil in the bag meal of Chicken curry and a pot noodle heated on the jet boil stove (and of course a mug of tea!), we started proceedings with the trusty Elecraft KH1 hooked up to the MPAS, calling out into the ether for about 45 minutes.

Despite best efforts, the airwaves remained silent, and no contacts were made. Relatively unfazed but a little dejected, I decided to bring out the backup—the Elecraft KX3. This radio, with its extra power, held the promise of better luck. I think in hindsight if I had just stuck with the KH1 a little longer the RF gods would swing things in our favour, or perhaps the extra little bit of power helped? Now I know you need to quadruple your power to make a single S unit of difference at the receiving station, but maybe, just maybe the extra 5 watts or so might have helped us just break over the noise threshold?

After setting up the KX3, we managed to make a very scratchy CW contact with my son, Daniel, who was back at home on 40 meters, around 70 miles away. I must admit at this point enthusiasm was depleted a little and the poor propagation conditions continued to be a challenge on this activation, and I was struggling sending with the Bamatech key for some reason. I think I had been a bit over enthusiastic when setting it up and it felt a tight in operation. A couple of European stations faded out just as quickly as they had appeared, leaving me feeling a bit frustrated to be honest. Things are not normally this difficult! I think this is the point of these longer videos (se below) it’s important to show the struggles and the highlights.

With all this being said, as if by magic after calling again on 20m, the station K2UPD suddenly erupted out of the KX3’s speaker loud and clear, as if he was on the next hill. The sudden clarity of the signal was surprising and caught me off guard. I simply couldn’t believe I was hearing a letter K, and I struggled to comprehend the characters, once my brain had recalibrated itself. I couldn’t help but smile.

It was a gentle reminder of the CW innovations Comprehensive Instant Character recognition course that coach Jon KC1FUU has mentioned so many times, Ignore the scope, and ignore the propagation predictors, persevere, and just call, as you never know who will answer! In ham radio, sometimes it’s all or nothing. The contacts started to come in more steadily after that and it really woke me up. Suddenly we were back in the game, and eventually, we reached the 10 contacts required for a successful POTA activation.

As the summit grew busier with curious passersby, Joanne found herself fielding numerous questions about our intriguing setup. The interest from the public added an unexpected but enjoyable social element to our adventure. With our mission accomplished, we decided it was time to pack up.

On our way back down, we took a detour through the ancient woodland at Black-a-Tor. The old oak trees, with their branches draped in lichen, and the river running quite fast down the slope as it meandered through created an enchanting atmosphere. It felt as if we had stepped back in time. We lingered there for about 20 minutes, absorbing the serene beauty of the place.

It was an 8km round trip. The walk back to the car was under the blazing sun, and we were both getting a little tired from it. By the time we reached the car, we realised we had gotten sunburned on the back of our necks. It was a small price to pay for such a fulfilling day, and we made a mental note to remember the sunscreen next time, perhaps I will add a small travel tube to the admin pouch.

Reflecting on our adventure, and despite the sunburn, Joanne and I felt a deep sense of satisfaction that had overridden the previous frustration. Despite the challenges, we had successfully activated Black-a-Tor and enjoyed a day immersed in nature. The memory of this outing, like the lichen on the ancient oaks, would stay with us for a long time.

Click here to view on Lee’s YouTube channel.

Field Reports, Guest Posts, News, Portable, POTA, QRP

Back in the Game for the POTA Babe

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by Teri (KO4WFP)

After a five week break from POTA, it was time to get back in the game! I leave for my North Carolina camping/POTA trip Sunday, July 14th and frankly miss being out on an activation. To remedy that situation, Monday, July 8th, I headed to Tuckahoe Wildlife Management Area (WMA), POTA park US-1603.

source: Google maps

Tuckahoe WMA consists of 15,000 acres purchased by the State of Georgia in 1990. Hunting for deer, turkey, and coyotes is allowed on the property in season. The property has over 10 small ponds for fishing and three designated camping areas. It is located in Screven county and its eastern border is the Savannah River.

When researching Tuckahoe WMA for this article, I came across information regarding the Battle of Briar Creek which was fought on March 3, 1779. Much of the battle site lies within the boundaries of Tuckahoe WMA.

The attack that day in 1779 by the British was a surprise and 150 Americans lost their lives. The aftermath proved especially bloody because the British were enraged over the death of one of their sergeants – Hugh McAllister – whose body was found hacked to pieces. As a result, the American wounded were hunted down and bayonetted. According to an article in the Athens Banner-Herald, “the British victory was so decisive scholars believe it prolonged the American Revolution by a year, changing the course of U.S. history.”

Back in the present day, Daisy and I left Savannah early under grey and sprinkling skies. The drive to Tuckahoe was pleasant and took us through Sylvania, Georgia again. Along the route, I spied a rainbow with a slight double-bow on its left-hand side. I hoped that was a good omen.

Downtown Sylvania, Georgia

The map on the Georgia Department of Natural Resources website showed what looked like several entrances for the property. I opted to take the second entrance I found but that proved to be a mistake as a tree blocked the road. I backtracked to the first entrance (where the battlefield sign is) and found myself on a wide, gravel road.

Access denied!

The woods I encountered on the property were open, mostly pine, and, I think, managed for wildlife and hunting as evidenced by several turkeys I watched crossing the road in front of me. It wasn’t far before I saw the memorial for the Battle of Briar Creek.

Originally, I intended to reach one of the boat ramps on the Savannah River, deep inside the WMA, as my activation site. However, given the limited time I had for an activation and the availability of low branches in an open area, I opted for a place just past the memorial as my QTH. I set up the hitching system for Daisy so she could enjoy the outdoors while I worked with my equipment. I oriented the EFHW antenna toward the north running the coax back underneath it hoping that orientation would push my signal to the north and west. (The orientation worked as per my QSO map below.) It wasn’t long before I was ready to call CQ. I went to spot myself and discovered there was…

Hitch system set up between Kai’s roof rack and large pine tree

NO CELL COVERAGE! (A POTA activators worst nightmare!) Ugh. I couldn’t even text anyone asking them to spot me. Continue reading Back in the Game for the POTA Babe →

Grab And Go, Guest Posts, News, Pedestrian Mobile, Portable, QRP

A QRP Morse Code Exchange with a Monk

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How I worked the #19 most wanted CW DXCC as a pedestrian mobile station

by Leo (DL2COM)

A couple of months ago, I started using the app HamAlert to keep track of interesting DXpeditions and rare call signs just to check if I would be able to copy their signal on my home-made WebSDR at a location outside of the city. This helped me a great deal in understanding propagation and pile-up dynamics as I began to develop a strong interest for expedition-like operating from exotic regions.

Mount Athos and monastery
Mount Athos (2027m abt. 6650 feet high) and one of the monasteries (courtesy of Dave Proffer, CC-BY 2.0)

One of the stations I had tracked for a while is Monk Iakovos Kutlumusian SV2RSG/A – the only licensed operator in Mount Athos which is currently #19 most wanted CW DXCC according to Clublog. Mount Athos is an autonomous orthodox monk republic under Greek sovereignty and located on a peninsula in the North-East of Greece (locator KN20CG). More info on Mount Athos can be found here (Wikipedia) and a trailer for an upcoming documentary here (Youtube).

Koutloumousiou Holy Monastery (courtesy of  Στάθης Κουτσιαύτης , CC BY-SA 4.0, Wikimedia commons)

The priorities of the community in Mount Athos understandably lie on their theological work. So I think it is a big commitment that Monk Iakovos (QTH: Koutloumousiou Monastery one of 20 monasteries in Mount Athos) is able to make some contacts in his free time outside his monastic duties as he writes on his QRZ page.

Very experienced DXers from Berlin once told me how they worked Mount Athos many moons ago on 80m in the middle of the night only by chance and that it is almost impossible to log this super rare DXCC.

Impossible? Hold my beer.

I had noticed that during May and June 2024 Monk Iakovos was on the air more frequently but each time only working 4-5 stations in a couple of minutes before disappearing again for days. The only two consistencies I found was that he was active on 20m CW and most of the time during local evening hours.

Garmin Instinct 2 Tactical Watch
Whoops there he is again – Hamalert notification on the Garmin Instinct 2 watch

I took the photo above a couple of days before to inform a friend that SV2RSG/A was active again (btw the HamAlert notification feature on my watch comes in very handy).

Then on Sunday, June 16th 2024, I was sitting on the couch reading when my watch vibrated and showed his call sign again on RBN at about 20:56 UTC (22:56 local time, 23:56 DX time).

I was in absolutely no position to make a QSO as I live in a very urban neighborhood in central Berlin City and I cannot have antennas at my QTH. Also the location brings along a high degree of man-made QRM and all the tall townhouses act as blockers for any kind of RF. Far from ideal for HF operation which is the reason 100% of me operating is portable or from the car.

In addition, we had just returned from a weekend trip to the countryside and I was enjoying the fact that our kids were sound asleep. So I only took out my phone and checked if I could hear this station again online.

To my surprise, this time it wasn’t the immediate and very intense “red ocean” simplex pile-up that I had witnessed multiple times during the weeks before. Maybe it was due to the fact that a big DX contest was coming to an end or most tired OPs were just off the air already on a late Sunday evening. Who knows? Or maybe it was just plain luck…..

Should I? Or should I not? I knew that I needed to be outside if I wanted to have the slightest chance to work this station. There is also a tiny park about 200 meters from our house which would improve my situation a little due to better “sky access” and takeoff angels towards Greece. But I thought by the time I could be set up the pile-up would already be too big for my QRP signal or the station would already be gone as it was the case each time before.

Still I ran over to our utility room, ripped open my backpack and got the KX-2 pouch out. I took the transceiver, slapped the AX-1 whip on, grabbed a key and dumped the counterpoise wire in my pocket.

Don’t let the shoe situation mess up your TTQ stats (time-to-QRV)

Have you ever wanted to take out the trash and then ran into a “shoe situation” at the front door with your hands full?

With my wife’s sneakers slipped half on I staggered out on the street all while trying to secure the end of the counterpoise to one of the bottom screws on the KX-2’s case and nearly falling down the stairs. Time-to-QRV (TTQ is that an official metric? if not it should be imho) maybe 80-100 seconds….no kidding.

Outside I dialed in 14.004 and immediately heard SV2RSG/A still calling CQ at a relaxed pace and then working a station. The signal in my “street canyon” was weak but a 100% copy.

Elecraft KX-2 and AX-1 whip antenna
Elecraft KX-2 and AX-1 whip antenna got me on the air in no time (I need to set the internal clock again)

I quickly send my call sign only to get a “QRZ?” back. OMG did he really just hear my signal? Apparently my field strength was too weak on his end because he started calling CQ again.

So I sprinted towards the park (dragging along the counterpoise behind me) and I noticed that his signal was coming on stronger and stronger. After about 100 meters I stopped and again called “DL2COM”. This time I heard “DL2?” but then a very loud OP blasting his signal right on top of me.

I repeated my call another two times and couldn’t believe my ears when SV2RSG/A came back with my true full call and a 599 report. With shaking hands I somehow managed to reply R 599 TU and then we exchanged 73s. I simply couldn’t believe what had just happened.

When I walked back to the front door one of my neighbors was standing there looking somewhat irritated. He paused his phone call for a second and asked “ARE WE SAFE?”.

“Oh yes! For now, very safe!” I told him that I had just communicated with a monk in Greece in morse code (“you know the stuff they used on ships back in the day”) and that this story probably needed more context over a beer.

I then noticed that I had pulled the counterpoise wire through a pile of dog droppings with everything happening so quickly. Of course I did! How can this not happen on the streets of Berlin. A sacrifice I was happy to make for this very special contact and btw cleaned easily in under 2 minutes.

Beer bottle and glass

Gear used:

Thanks to QSL manager SV1GRM I did not have to wait long for this card

How did this work? Being on the air so quickly and the fact that 20m was on fire that night certainly helped. But then again is it also the idea to just dare and get out there operating. If you don’t cast a line there won’t be any fish…right?

You never know which exciting DX station might be just around the corner during a special band opening.

While Greece isn’t particularly hard to reach from Germany it was more the overall circumstances (very rare, short and erratic operating times of this station, usage of callsign by pirates, urban QTH, compromised antenna, simplex pile-up with QRP signal) that made this contact highly unlikely but as I now know also totally possible. Blessings to Mt. Athos and their ongoing work for the DX-community! I am very grateful that I got the chance to log them.

– vy 73 de Leo DL2COM

p.s. as of the day of publishing this article, Monk Iakovos has not been active since I worked him on June 16th (according to RBN).

Guest Posts, News, Portable, QRP, Travel

Where the Heck is the POTA Babe?

7 Comments

by Teri (KO4WFP)

Okay. Y’all haven’t heard much from me lately and may be wondering, “What the heck is the POTA Babe up to?” Actually, a lot!

Earlier this year, I asked QRPer readers for suggestions as to parks to visit for a summer POTA trip to either North Carolina and/or Virginia. I appreciate all the suggestions I received. In evaluating the time I have and that I’ll be driving by myself, I have opted to visit North Carolina. I’ll be on the road for eight days mid-July camping with Daisy. I hope to activate ten to eleven parks as well as successfully complete four SOTA activations. It is a lot to bite off but then I enjoy being challenged.

I originally planned for a twelve-day trip but decided to nix the second week near the Charlotte area due to obligations at home. I am bummed at missing out on those parks. (Thank you Bob K4RLC for the recommendations in that area.) However, now I’ll have those parks to activate on a future trip.

Preparing for this trip is no slap-dash endeavor. At least not for this POTA Babe. As I mentioned in the articles of my last trip to southwest Georgia, I am tweaking my camping equipment as well as how I organize and access those items.

An item I’ve added is a fan because camping in July might be a bit toasty, even in western North Carolina. My partner Glenn W4YES came across a helpful video on the CheapRVLiving Youtube Channel discussing USB-charged devices. The Koonie 8” rechargeable fan was mentioned. As it received favorable reviews on Amazon and I can charge it using my Jackery, it is now in my arsenal for summer camping.

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Koonie USB-charged 8″ fan

I also added an ultralight shelter I may use on a summit or for POTA in general. While researching summits to activate, I came across a picture on the SOTlas website and reached out to that op as to information about the tarp he was using for shade. Patrick WW4D introduced me to Mountain Laurel Designs, a company that makes ultralight shelters (tarps and tents). They aren’t inexpensive, but then I’ve learned to purchase good quality where I can. In a shelter, good quality counts.

I purchased the Trailstar. It can be used as a tent or a shelter. Before the trip, I need to seal the seams. What I didn’t realize until the other day is that I will also need to cut the guylines as well as figure out what knots to use in securing the guylines to the stakes included. Then I have to learn how to set it up using my hiking poles. The learning never ends, does it?

I couldn’t believe how light the Trailstar is having never experienced a shelter like it. It will be a welcome addition to my SOTA backpack since it weighs hardly anything.

The Trailstar by Mountain Laurel Designs. source: Outdoor Gear Lab

I’ve also undertaken re-waterproofing my tent. Sierra Designs sent me instructions and information about the products they recommend which I ordered. I thought to myself “how hard could it be to re-waterproof a tent?” Those of you who have done this know it is a time-consuming process! You have to remove the old waterproofing substances before applying the new ones. The substances used for waterproofing fabric are meant to not come off easily, especially after being on there for 30 years (the age of my tent). I’ve spent more time in the bathtub scrubbing and smelling rubbing alcohol than I care to admit. However, when this process is finished, my tent and its rainfly will be clean and good to go for another eight years or so.

waterproofing products for tent and rainfly
Washing tent with unscented detergent and ammonia
old waterproof coating to be scrubbed off
section of tent floor with new coat of waterproofing barrier

I am also researching how to do a SOTA activation. I’ve found quite a few helpful videos on Youtube and plan to reference them in a future article. For my pack, I am using a Six Moons Designs ultralight pack (the Flight 30 Ultra) I purchased about four years ago. As it was not being used, I’ve been employing it as my POTA pack for several months now.  Given I’ll be hiking to activate summits, I need to rethink what I’ll take in the pack since, in addition to ham gear, I’ll need emergency supplies one should take when hiking.

While preparing for this trip, I’ve had a new addition to my shack that is sharing my focus as of late. Nearly two years ago, I ordered a Frattini Magnetic Evolution bug. I didn’t hear anything further for the longest time and figured it wouldn’t ever arrive. Then, about four weeks ago, Alberto Frattini sent me an email the key was ready and, oh by the way, was I still interested in it? You bet I was! “The Frattini” (as I call it) is now in my shack and I am resuming my pursuit of the Straight Key Century Club’s (SKCC) Triple Key Award. (When I’m not scrubbing the tent, mind you.) My fist is a work in progress but what a great challenge!

my Frattini Magnetic Evolution bug
Hummer on the Frattini plate – a nice touch given my POTA Babe logo also has a hummingbird on it

My goal is to run at three speeds eventually – 16, 20, and 25 wpm. Right now I am concentrating on 16 wpm as that is a good speed for SKCC QSOs. At that speed, I am more relaxed and the more relaxed I am, the better I can focus on making my characters correctly with good spacing. My goal with the Frattini is that the dits and dahs be proportional and timed well enough it doesn’t sound like I am using a bug. With continued practice off and on the air, I will eventually get there.

One thing I’ve found that helps is having either Word List Trainer up and running or my Morserino in the shack. Just like a choir conductor will play a note on a pitch pipe for a choir, I’ll play the letter “o” at 16 wpm to get that dah cadence in my head before I get on the air. Eventually, I’ll fall into that rhythm naturally at that speed but in the meantime, I find that trick extremely helpful with my timing of the dahs.

If you’d like to hear my bug fist (a work in progress, mind you), click on the video link here to access it on Youtube.  Also, if you’d like to follow my progress on earning bug QSOs for the Triple Key award, check out the goals section on my QRZ page.

Well, there you have it – my ham radio related doings since my southwest Georgia POTA trip. For those interested in hunting me while I’m in North Carolina, I will not release my itinerary in advance for safety reasons. However, Glenn or I will schedule my activations each morning so keep an eye out on the POTA and SOTA Watch pages beginning July 14 if you are keen to work me and support the trip.

I am a little nervous about the trip.  I’m going to be out of my comfort zone and sure to make mistakes. However, this is how we learn – making mistakes. This is a part of ham radio and such a trip – the unknown! Who knows what I’ll learn and discover along the way. I hope to work many of you that week and look forward to sharing with you those adventures on QRPer.com after my return. But before I leave next Sunday, I plan a POTA activation Monday, July 8 to get my head back in the game. What park will I pick? Stay tuned…

Field Radio Kits, Grab And Go, News, Portable, POTA, QRP, QRP Radios, SOTA

Deep Dive: My Mountain Topper MTR-3B Watertight SOTA Field Kit

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Last week, in response to a reader’s question here on QRPer.com, I was reminded that I hadn’t yet made a video specifically about my Mountain Topper MTR-3B SOTA field kit.

Yesterday, I made a short video (see below) where I show what I pack in my MTR-3B field kit and why I choose to house it in a Pelican 1060 case.

First, let’s look at a list of the gear, then I’ll talk about what went into my choices, and I’ll link to the video.

Gear:

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Self-Contained Watertight Field Kit:

Optional Gear for SOTA/POTA:

Design Choices

Here’s the philosophy behind my design choices in this kit:

Pelican 1060 Case

I chose to house this field kit in a Pelican 1060 Micro Case even though, at one pound, it weighs more than the typical pouch I also use for small field radios. The Pelican, however, protects the entire radio kit as it’s fully watertight and crush-proof. If I trip while fording a creek or fall and land on my pack, the Mountain Topper will be safe. Yes, there’s a mass/weight cost, but I feel it’s very minimal for the protection it offers.

Counterpoise-less End-Fed Half-Wave

When I build the K6ARK EFHW antenna kit for my MTR-3B, I chose to make it without a counterpoise. Even though the antenna would be more efficient with a dedicated counterpoise and less prone to the effects of body capacitance, I feel like the benefits of this design outweigh the compromises. For one thing, leaving off the counterpoise saves space inside the Pelican case. In addition, by designing the antenna to attach directly to the MTR-3B’s BNC port, there’s no need to include a feedline, thus saving quite a bit of space.

So far, I’ve been very impressed with how forgiving this antenna has been and, most importantly, with how well it has performed.

N6ARA SWR Meter

I include the N6ARA MiniSWR  in my field kit to give me some peace of mind if my antenna deployment is compromised (for example, if the trees on a summit are too small, etc.). Since my MTR-3B version has no built-in SWR metering, I feel this is a meaningful addition tot he kit.

Throw Line and Weight

At least 90% of the summits and parks I activate here in western North Carolina have trees. To me, no field kit is truly sufficient unless I include a throw line and weight. I find that the Marlow KF1050 Excel 2mm Throwline is small, lightweight, and effective—-25 meters is enough to deploy any wire antenna I’d carry on a SOTA activation.

Many SOTA ops use a small sack that they place stones in to act as a throw weight for their line. This is very clever because you don’t have to pack in that extra 8 ounces on the roundtrip hike. Still, I like the convenience of a throw weight that’s designed to glide through tree branches with ease–especially if the tree is dense. If I were to do a multi-day SOTA backpacking trip, I’d probably use an empty throw sack instead of a dedicated weight.

Rechargeable 9 Volt Battery Packs

I love these 9V rechargeable batteries. It’s hard to believe that the MTR-3B can complete 2-3 typically SOTA activations on one charge! Then again, the MTR-3B uses something like 18ma in receive? That’s crazy low current consumption. These batteries are super lightweight and the particular brand I use has never produced any RFI (I’ve read that some others can). What’s best is that I can recharge these easy via a USB-C cable.

The MTR-3B will operate on nine volts, which yields three watts of output power.

Helinox Chair and Kneeboard

Yes, these are luxury items. I know many SOTA ops who are quite happy to sit on the ground and balance their radio on their leg. Perhaps it’s my age, but I don’t like doing this anymore because my legs tend to fall asleep and I lose feeling in them if not careful.

My Helinox Zero chair weighs 1 lbs 2 oz (509 g). I feel like it’s weight and mass well-spent. Since I record activation videos, the chair also gives me a much better position for my camera angle (bonus!).

My Tufteln/N0RNM kneeboard is an essential part of my SOTA kit. I never leave without it. The chair and kneeboard combo gives me the flexibility to set up anywhere, anytime. I love it.

Video

Here’s a video showing the breakdown of my Mountain Topper MTR-3B SOTA field kit:

Click here to view on YouTube.

Thank you!

 

Thank you for reading my field kit post and watching the video! I hope you enjoyed it.

As always, I’d also like to send a special thanks to those of you who have been supporting the site and channel through Patreon, and the Coffee Fund. While not a requirement, as my content will always be free, I really appreciate the support.

If you’d like to see loads more field kits, check out our field radio kit gallery!

Thanks for spending part of your day with me!
Cheers & 72,
Thomas (K4SWL)

Field Reports, Guest Posts, Morse Code, News, Portable, POTA, QRP, SSB, Travel

Friedrichshafen: Christian and Andrea’s Multi-Country POTA Rove

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Many thanks to Christian (IX1CKN) who shares the following field report:

Friedrichshafen: POTA Across Borders

by Christian (IX1CKN)

The Friedricshafen fair is one of the most interesting events for its social aspects, where you can finally put a face to colleagues whose voices you’ve only ever heard. Among the various OM (radio amateurs) I met this year was Gabriele IT9RGY, a flagbearer of the Italian Contest Club. When he recognized Andrea IW0HK and me, he said, referring to our respective SOTA/POTA activities: “You two are the real deal.”

I found that to be a very powerful statement, and I am grateful to him for it. Personally, I try to document each outing to capture the sensations it gave me, but also in the hope of inspiring someone. Andrea is more succinct than I am (if we were all the same, the world would be boring), but his spirit is identical. Parks on the Air (POTA) is a state of mind. It was no coincidence that, being in Germany for the Hamradio Messe, we had planned a series of activations.

Our schedule was tight and ambitious, and just completing it was a source of happiness, but there’s more to tell. In Germany, dinner time isn’t synchronized with Roman schedules. So, on Friday evening, after leaving the restaurant (for dinner with the Summits On The Air group) at 20:23, I looked at Hotel-Kilo and said, “If I go to bed now, I’ll digest in a week; let’s go activate a reserve!”

The easiest option in the area (after a disastrous experience last year in DE-0156, the park in the town center hosting the fair) was DE-0766, the Seewald Landscape Reserve. It’s near the FRN airport (and thus not far from the fairgrounds), in a fully bucolic setting. A narrow road cuts through meadows, with footpaths and bike paths leading into a wooded area.

We parked the car in one of these spots. It took only a moment to set up the vertical antenna in the field, but the presence of a swarm of mosquitoes as big as F-18 Hornets advised us to operate from inside the car to save our skin (literally).

Andrea turned on the KX-3 (10 watts would be our fixed power for this trip), and the 14 MHz calls began. Right away, a very strong IZ3QFG Dario (just 380 km from us) answered, highlighting an unusually short skip.

We logged 20 QSOs in 30 minutes… Many were from Italy (Spartaco from Grosseto at full scale, Mauro I1JQJ always active, and Beppe I1WKN a constant), with two “park to park” contacts. A classic for many OMs in the area, but also a great mood booster and a tasty appetizer for the next day… Continue reading Friedrichshafen: Christian and Andrea’s Multi-Country POTA Rove →

Accessories, Antennas, Articles, How To, News, Portable, QRP

Construction Notes: VO1DR Monopod Antenna Mount

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Many thanks to Scott (VO1DR) who shares the following guest post:

Construction Notes – VO1DR Antenna Mount for Camera Monopod

by Scott Schillereff,  VO1DR

Further to my article about radio during trip to Portugal, a number of readers asked for details on how I mounted my whip antenna system to my camera monopod for /P use.  Here are some photos and notes on this.

General notes:

  • This is a “straight-through” design.  Just direct connections from the BNC center pin to whip (via brass nut), and BNC housing to radial connector.
  • This is not a cook-book construction article, rather just a show-and-tell of how I built mine.  You can use what you have on hand to build something similar.
  • I suggest you start with your telescoping whip, so you know the size and threads for mounting bolt.
  • You could use any type of connector for the radial (wingnut, knurled nut, spade lug, alligator clip, whatever you like).  I prefer banana jacks since a) I can push in the radial banana plug fast, b) the plug is a weak release point (pulls apart if someone walks into the radial), and c) I can easily attach additional radial wires, if desired.
  • Use a strong case (metal clamshell or cast aluminum work well).  With the whip extended, there can be substantial forces (bending moment) from wind or handling. A tiny plastic case would be fractionally lighter but might fail.
  • For size, the one I used (25 x 25 x 50 mm; 1” x 1” x 2”) is about as small as I would go.  It needs to have a big enough footprint to sit firmly on a camera mount fitting.
  • Use high heat (e.g., Weller 100-140 W solder gun) when soldering the center pin wire to the brass whip mounting nut.  Solder the wire to the brass nut before you epoxy the nut.
  • I custom made the white plastic insulating bushing (where whip screws in). This was from a nearly-right bit from my junk box.  You can be creative here.  You could also epoxy on short piece of close-fitting, thick-walled PVC pipe around the outside of the whip mounting hole as a supporting sleeve to give some lateral support to whip when it is screwed in.
  • Dry-fit everything (before epoxying) to make sure nothing touches that shouldn’t and you can screw in the camera nut and whip fine.  Test proper continuity of center pin and radial connections to BNC fitting.  Once glued, there’s no going back!
  • For surfaces to be epoxied (metal nut sides and bottom, insides of mounting case), slightly roughen with sandpaper or jewellers file, then clean with isopropyl alcohol and Q-tip.  This will increase adhesion and strength.
  • Use good-quality, high-strength, long-cure epoxy (e.g., JB Weld), not el-cheapo 5-minute epoxy from the Dollar Store.  LET THE EPOXY COMPLETELY CURE BEFORE MESSING WITH IT!  Just walk away from it for a day… (your patience will be rewarded).

Figure 1 – VO1DR Antenna Mount, clamped onto top of monopod.  Coax goes to BNC on left; whip screws into top; raised radial connects by banana plug on right

Figure 2 – Antenna mount unclamped from top of monopod.  The black plastic fitting (at right, with wedge-shape) fits into slot on platform at top of monopod (at left) and clamps in with cam arm.  Large steel screw attaches wedge fitting to antenna mount case. Ruler shows scale of things.

Figure 3 – Antenna mount case (right) unscrewed from camera mount fitting.  Steel screw is standard camera mount size (1/4-20 thread size).  Black silicone cap keeps dust out of BNC connector.  If your camera mount does not have a detachable wedge fitting (like the one on the left), you would simply screw the camera mount screw directly into the bottom of the antenna mount case.

Figure 4 – Top of monopod dissembled to show (clockwise from top): black monopod tube with telescoping whip stored inside (stainless steel with 10 mm brass mounting bolt), antenna mount case, detachable camera mount fitting, and round top plate of monopod.  For my monopod, I had to remove one tiny screw and apply gentle torque to break a weak glue joint of this round piece on top of the monopod leg.  It remains a snug hand fit (no screw needed).

Figure 5 – Fully assembled whip antenna mount with wiring.  Radial (blue wire) with tie-off cord (yellow) at left; RG174 coax (5 m) at right.  Whip is only ever screwed in hand-tight.  Deploying in the field, I first tie off the monopod to something (park bench, picnic table, fence, tree), then screw the collapsed whip into the antenna mount and clamp mount on top of monopod, then plug in radial and tie the yellow cord off to something (straight out at 2 m height or slope down to ground anchor), and finally connect the coax to the rig.  When all in place, I carefully raise the whip (slowly, with two hands to reduce bending forces).  Take-down is all in reverse.

Figure 6 – Detail of antenna mount case.  Case is 50 mm x 25 mm x 25 mm aluminum clam shell box with square metal end plates.  These end plates are screwed in to hold the two halves together.  White plastic bushing provides additional lateral support for the whip when it is screwed in.  The bushing is glued to outside of case with CA (Krazy) glue.

Figure 7 – Inside of antenna mount case.  On left, a ¼-20 steel nut is epoxied to inside of case with strong JB Weld epoxy.  In main case, a 10 mm brass nut is epoxied to inside of case with an insulating washer beneath.  This brass nut connects to the whip and is “hot”, so must be insulated from the black aluminum case.  Yellow wire connects center of BNC to brass nut (soldered).  Black wire connects ground side of BNC to radial banana jack.  Use plenty of epoxy; there is a lot of force exerted on the steel and brass nuts.

Figure 8 – Detail of inside of case.  Note separation of banana jack solder post and edge of 10 mm brass nut.  Solder yellow wire to nut before epoxying in nut.

Hope you find this useful.  Just use what you have on hand and some ingenuity to make yours!

Best 72, Scott  VO1DR