Category Archives: POTA

Join Brooks (KO4QCC) on his First CW POTA Activation–!

Friday, March 24, 2023 was a very special day for Brooks (KO4QCC) and for K4SWL.

I’m so excited to share this with you.

You might recall that, last year, I met up with Brooks at Tuttle Educational State Forest as he performed his very first POTA activation in SSB. He did such an amazing job!

Since I first met Brooks, he’s always had a goal of learning CW and activating parks and summits using Morse Code.

I’ve been in touch with Brooks regularly over the past year and have followed him as he progressed on his CW journey.

Though, like me, he has an active family life, Brooks has found the time to practice CW both through lessons and actual on-the-air contacts. Fortunately, this is all possible because–again, like me–his wife and family are very supportive of his amateur radio adventures!

Early this year, we met on 80 meters and had a good one hour rag chew at about 12 words per minute. I could tell he was ready to do his first POTA activation in CW.

To give him a little real-world practice, we decided to hit the field on a day when I was performing an activation and he could log for me in real-time.

I could tell by how well he was logging as I worked stations at 18WPM  that he was ready to perform his first activation, so we made it a goal to do so within the next couple weeks.

Fast-forward to 8:30 AM on March 24 when Brooks and I met at the Folk Art Center on the Blue Ridge Parkway. Coincidentally, this is the same location where I performed my first CW activation!

We deployed his MFJ-1984MP 40 meter EFHW (End-Fed Half Wave) and connected it to his Xiegu X5105 transceiver in very short order. Brooks also chose his lucky CW Morse paddle for this activation.

But before hopping into the field report, let’s back up just a bit…

First CW Activation: Getting there…

Brooks very kindly wanted to share a bit about his CW journey in this field report. He writes:

From the moment I knew of its existence, becoming a POTA activator using CW has been at the top of my “radio bucket list.”

It seemed like the ultimate challenge and I knew I would never be satisfied until I was able to confidently activate parks using CW. There is also a bit of mystique to CW that other modes lack, making it inherently more interesting to me. In this article, I am going to share the path I took to learn CW and how it culminated in a very successful CW activation.

Continue reading Join Brooks (KO4QCC) on his First CW POTA Activation–!

Another POTA activation close to the “Bridge of Spies”

by Thomas (DM1TBE)

Intro

The day after my activation of Park Babelsberg, I wanted to activate a second new POTA park. The new Park Sacrow is a picturesque park located on the River Havel in Potsdam, about which I have written a brief summary in the  QRPer activation report for Park Babelsberg.

One of the prominent landmarks in the Park Sacrow is the Heilandskirche, also known as the Church of the Redeemer.

This neo-Romanesque church, completed in 1844, is a striking sight with its red brick façade, white stone accents, and tall tower. The Heilandskirche is overlooking the Havel River and offers panoramic views of the surrounding park and river.

During the time of the Berlin Wall, the Heilandskirche in Sacrow was located near the border between East and West Germany. The church was in the “No Man’s Land”, i.e. behind all East German border barricades – see photo from 1972 below with the Berlin Wall –  preventing anyone from visiting.

Ulamm, CC BY 3.0, via Wikimedia Commons

After the years of decay, when the bad condition became too obvious from the West Berlin side, citizens of West Berlin tried to stop the further decay. After long negotiations between church authorities and the government of East Germany, the exterior of the church building was restored in 1984/85. Today, the church looks as beautiful inside as it looks outside.

With the border between East and West at the middle of the river, the whole area was a kind of border protection zone, only available to locals or those with a special permit.

The park is close to the Glienicker Bridge, also known as the “Bridge of Spies” from Steven Spielberg’s blockbuster, on the opposite of my position the day before.

Arne Krueger, CC BY-SA 2.0, via Wikimedia Commons

As mentioned in my previous report, I have grown up less than a mile away from this famous bridge, in Potsdam, i.e. Soviet controlled part of Germany.

In my opinion, Steven Spielberg told the wrong story. There is another, more interesting story related to this bridge. It is the story of the Military liaison missions. A few British, US and French army members were allowed to roam freely in the Soviet controlled part of Germany and, vice versa, a few Soviets in West-Germany. These members of the military liaison missions had immunity from all German authorities. Since East Germany was frontline to the western world, the Soviet army had their most advanced technology there and the mission members’ task was it to spy, for example with this US Military Liaison Mission vehicle – note the license plate.

US Army

The uniformed, but unarmed mission members drove military-green cars with a special license plates – here a British mission car on display in a museum. For me as a child, those cars looked like from another planet.

Von allen watkin from London, UK – flickr, CC BY-SA 2.0, via Wiki Commons

The Glienicker Bridge border crossing wasn’t open for public, but only for those mission members and diplomats. The French and British mission houses were close to this bridge in the Soviet controlled part, the one for the US was some miles away.

French Mission House today:

British Mission House today:

Just imagine these two buildings with a huge British and French flag on top, in proximity to Soviet military installations behind the Iron Curtain.

It did not always go as smoothly as it could. The image below shows the Soviets handing over the corpse of Major Arthur D. Nicholson to the US authorities on the Glienicker Bridge. Nicholson was shot down in 1985 by a Soviet sentry at a Soviet army base in East Germany.

Alliiertenmuseum /Allied Museum Berlin / USMLM

In 1984, Philippe Mariotti, a member of the French Mission Militaire Francaise de Liaison died after the East German Secret Service has set up a trap and rammed Mariotti’s car with an army truck.

The British BBC aired an interesting documentary about the British mission The British Commanders’-in-Chief Mission to the Soviet Forces in Germany (BRIXMIS)  called “The Brixmis story”.  If you find the topic interesting, there is a lot of stuff on YouTube when searching for Brixmis or USMLM.

The activation

The weather was significant better than the day before, with sun shining and warm spring temperatures. I also had more time available. Continue reading Another POTA activation close to the “Bridge of Spies”

KN4OK’s Mini POTA Field Report from the Florida Keys

Many thanks to Dave (KN4OK) who shares the following mini POTA field report:


POTA Activation K-3620 Florida Keys Overseas Heritage Trail State Park.

By Dave (KN4OK)

On April 8th, 2023, on our way to the Overseas trail near the 7 mile bridge, is a great place to activate with a picnic table and shade on the water.

I was smart enough to mention to the wife that we were going to activate a park and she was carrying my Elecraft KX2.  Of course, in my hand was the antenna, the MFJ-1889T, and counterpoise wires that I borrowed from my WRC antenna.

After a mile hike on the trail, we stopped at the picnic table and I set the station up on 17 meters CW.  The SWR was pretty good and I made 9 contacts with no problem.  I then switched the radio and antenna to 20 meters and obtained a better SWR.

One thing that I noticed: extending the counter poise wire (33ft) all the way out for both bands helped a great deal.  The jumper holes on the antenna were also changeable and helped as well.  MFJ has a nice manual for band setups, but be sure to adjust for best SWR.  Very easy to do and works great.

The 20 meter band was also a big success and I was very pleased with the performance of the MFJ 1899T antenna.  Thanks for all the previous discussion of the similar antennas that inspired me to take out my antenna.

The end result was 19 contacts, all CW in about 45 minutes on a beautiful day!

My Equipment:

Thanks to all my chasers and QRP rocks!

72

Dave KN4OK dit dit

Snagging a little POTA QRP DX with the Chelegance MC-750 and Xiegu G106

Over the past couple of months, I’ve been trying to give the Xiegu G106 a thorough workout in the field. This little HF QRP radio is on loan to me from Radioddity who has very kindly been quite flexible about the loan period.

I want to give the G106 a fair shake-out because I believe it must be the least expensive multi-mode, full HF coverage transceiver on the market. Field ops are always looking for portable, affordable, effective radios to take to the field so many are considering the G106.

Of course, you simply can’t get benchmark performance out of a low-cost leader.

My full review of the Xiegu G106 will be in the May 2023 issue of The Spectrum Monitor magazine. It’s one of the longest reviews I’ve published in TSM because I try to fully explore the pros and cons of this pint size rig in order that pretty much anyone can make a purchase decision based on their own preferences and requirements.

POTA Plan B

On Saturday, March 18, 2023, I  decided to take the G106 out for a very brief activation during a return trip to my QTH.

My park of choice was Tuttle Educational State Forest (K-4861) because it’s conveniently located, is an excellent POTA site, and I wanted to fit in a quick hike as well. Tuttle’s two mile loop fit the bill perfectly.

When I arrived at the park entrance, however, the gates were closed. I had double checked Tuttle’s schedule in advance and was under the impression that they had started opening the park on Saturdays again for the season.

I really wanted to fit in a decent hike so the next logical park choice was Lake James State Park. It didn’t require a major detour and I was certain it would be open.

Lake James State Park (K-2739)

Lake James has two major access points: the Paddy’s Creek Access and Catawba River Access.

I prefer the Catawba River Access even though it’s much smaller than Paddy’s Creek. For one thing, it’s always less busy and they’ve better spots to set up for POTA (since I like hanging wires trees more often than not). Although the Catawba River access lacks the trail network found at Paddy’s Creek, they do have a few trails that can be stitched together for a nice workout.

Lake James State Park Map Catawba River Access

After arriving at the park, I put on my hiking boots and walked the Fox Den Loop and a bit of the Lake Channel Overlook.

I hiked back to my car, ate a bite of lunch, then grabbed my radio gear for some cheap POTA fun!

Higher Bands

The great thing about the G106 compared with some of my more affordable QRP radios (MTR-3B, SW-3B, R4020, TR-35, etc.) is that it’s not limited to CW and it covers all bands from 80 to 10 meters. Continue reading Snagging a little POTA QRP DX with the Chelegance MC-750 and Xiegu G106

Park Babelsberg – POTA ATNO on a UNESCO World Cultural Heritage site

by Thomas (DM1TBE)

Intro

The holidays seasons like Christmas or Easter provide an opportunity to return to the family. So I drove across Germany to Potsdam, where I have grown up, during the extended Easter weekend.

Potsdam is a historic city located in the state of Brandenburg, Germany, next to the capital Berlin. It has a rich history dating back to medieval times, when it was founded as a settlement on the banks of the Havel River. In the 18th century, Potsdam became the residence of the Prussian royal family and was transformed into a center of arts, architecture, and culture. The famous Sanssouci Palace, built by Frederick the Great, is one of the many palaces and gardens that reflect the city’s royal heritage.

piotr iłowiecki from POLAND, CC BY-SA 2.0, via Wikimedia Commons

Close to the Sanssouci Palace, the Neue Palais, a grand palace, is located. It is a magnificent example of Baroque architecture, with its grand façade, opulent interiors, and beautiful gardens, and it was used as a guest residence for the Prussian royal family. Later William II, German Emperor and King of Prussia, made it to its main seat.

Steffenheilfort, CC BY-SA 3.0, via Wikimedia Commons

Potsdam was also a significant location during World War II. During the last days of the war, the 12th German Army tried to break through the Soviet blockade around Berlin, which caused fierce fighting close to the city.

Less than a month before Germany’s final surrender, 1700 tones of bombs were dropped causing destruction of a large part of the city center. Still a lot of dangerous stuff from those times is found during construction works until today.

The city also served as the site of the Potsdam Conference in 1945, where leaders of the Allied powers met to discuss the future of post-war Europe – here with Winston Churchill, Harry S. Truman and Josef Stalin during July 1945.

U.S. National Archives and Records Administration

Before I started the trip, I checked which ham radio programs offer outdoor activations in the region. The whole area is more or less flat, so not SOTA summit within a radius of a one-hour drive. Also, no POTA park existed, so I thought suggesting two would be good, for me and POTA :).

One new park later accepted by POTA was the Babelsberg Park with its Babelsberg Palace. The palace was the summer residence of Prince William, later German Emperor William I and King of Prussia, and his wife.

Raimond Spekking & Superbass, CC BY-SA 4.0, via Wikimedia Commons

The park and the palace is on the UNESCO World Heritage list.

From the park, you have a good view to the Glienicke Bridge, probably better known from Steven Spielberg’s movie “Bridge of Spies”.

The Bridge of Spies connects Berlin (formerly West-Berlin part) with Potsdam, (formerly East Germany), hence formerly the Soviet and Western (US, UK & France) controlled parts of Germany. The bridge was used as an exchange for spies between Western and Eastern powers. Probably most prominent was the CIA pilot Gary Powers, who was shot down over the Soviet Union with a U-2 spy plane in 1960.  Below is an image of the beginning of another spy exchange in 1986.

CC0, Alliiertenmuseum / US Army

I grew up during those times less than a mile away from that bridge, in Potsdam, i.e. in the Soviet controlled part of Germany, and the area up to the bridge, where a lot of Soviet army installation were located, was my playground. Continue reading Park Babelsberg – POTA ATNO on a UNESCO World Cultural Heritage site

How to optimize low solar activity days for your activations

by Vince (VE6LK)

(As is Vince’s usual, this article is full of educational and fun links – click on as many as you wish)

Picture this ..  you are getting a bit twitchy due to lack of POTA activation and you have run out of Potaxxia. Further, You publicly stated a New Year’s eve goal to make at least 200 POTA CW activation contacts per month for 2023 (there may have been beer involved), and now you must stay accountable to your goal and you are currently behind plan. It’s too early in the season to be lawn mowing while listening to podcasts such as QSO Today, Ham Radio Workbench, ICQ Podcast, AP/DZ or Soldersmoke. Thus, chasing contacts is [always] a good use of your time.

Lastly, if you are like me, the the solar indices are still an art form being learned and the numbers for today aren’t all in the green zone.

One of many charts that help decode the magic behind propagation values – click through for source webpage

So you begin to wonder just how much effort it’s worth to load up your gear and try to activate. You think to yourself that there won’t be much action on bands other than 20m which has been noisy lately, so why bother as it’s at least a 45 minute trip to the nearest POTA entity.

With this background, on Saturday I placed myself in the city at the nearest-to-home spot I could park in the south part of Calgary adjacent to VE-5082, the Trans-Canada Trail. I was trying to make the best of what I perceived to be a rough conditions day and had no real plan except a convenient location requiring minimal effort for a minimal return. My expectations were, sadly, met in this regard.

The author in a suburban and *very* RF noisy place that he won’t return to.

I was at the edge of suburbia with large homes on my left overlooking the ravine and pathway on my right. To say it was RF noisy would be a colossal understatement. I made 18 painful contacts in an hour and I’m sure people called me but I didn’t hear them given the S7 noise floor on 20m. At least I made one DX contact to Denmark along the way. Overall feeling frustrated, I went back home.

Sunday morning rolls around and again I wonder “is it worth it”?

Continue reading How to optimize low solar activity days for your activations

POTA at Fort Dobbs: Testing a BCI filter and depleting a battery!

Friday, March 17, 2023 was a dreary, rainy day.

It was the sort of day made for reading a good book by the fireplace or…in my case…activating a park!

I don’t let rain stop me from playing radio in the field. I carry a rain fly in my car pretty much all of the time so if push comes to shove, I can create a dry space to play radio.

That said, a number of parks I frequent have large covered picnic shelters, so why not use what’s already there?

That particular Friday, I had one particular park and one particular goal in mind.

G106 + BCI Filter

As I mentioned in a post this weekend, I purchased and built a K9DP BCI Filter Kit.

If you’d like to see photos of the build, check out this post.

I built this BCI filter specifically to pair with the Xiegu G106 transceiver. Why? Because the G106 is prone to overload if you’re anywhere near an AM broadcaster.

The last time I visited Fort Dobbs State Historic Site (K-6839), a local AM broadcaster bled through the audio of the G106. I was able to complete the activation without any issues at all–in fact, it was a very successful activation (read the report here).

Still, I did feel that the receiver was a bit less sensitive due to the broadcaster overwhelming the front end of the radio.

That Friday, I wanted to pair my Xiegu G106 with the new in-line BCI filter to see if that might mitigate the interference I experienced before.

Fort Dobbs State Historic Site (K-6839)

After arriving at Fort Dobbs, and before taking my gear out of the car, I made my way to the park office (in the log cabin at the end of the sidewalk above) and asked for permission to use their picnic shelter. Continue reading POTA at Fort Dobbs: Testing a BCI filter and depleting a battery!

Brian’s Reflections on Activating a Not-so-New Park

Many thanks to Brain (K3ES) who shares the following guest post:


The Visitor Center at Kinzua Bridge State Park (K-1366) is well worth a visit.  It provides an excellent overview of the history, use, and collapse of the railroad bridge that gave the park its name, and it provides an excellent view of the pedestrian skyway built on the portion of the bridge that remained standing after the tornado that caused the collapse.

Reflections on Activating a Not-so-New Park

by Brian (K3ES)

Monday, April 3 was one of those beautiful, warmish (60ºF or 16ºC) sunny days in northwest Pennsylvania that remind us that spring is really here.  Only a week earlier, we had an unexpected snow fall that covered the ground (and it will likely not be our last snow of the season).  So my wife, her father, and the dogs all looked forward to getting out of the house to enjoy the weather.  We packed for a picnic, and drove through bright sunshine to Kinzua Bridge State Park.

After a picnic lunch, and while Becky and her dad explored the visitor center and walked the dogs, I set up for a Parks on the Air (POTA) activation of K-1366.  This would be my first activation of the park, but not my first visit.  I have been there several times before, including an excursion trip behind a steam engine that took me across the railroad bridge over Kinzua Creek and back.

A view from the visitor center of the pedestrian skyway.  It was constructed on the structure that remained after the bridge was struck by a tornado in 2003, causing its partial collapse.

An Historic Park

Kinzua Bridge State Park has an interesting history.  The railroad bridge that gives the park its name was originally built of wrought iron in 1882.  At the time it was built, the 301 ft (92m) high and 2052 ft (625m) long railroad bridge was the highest in the world.  It was rebuilt in place in 1900, replacing iron with steel, to strengthen it for the heavier trains that needed to cross.  The bridge remained in commercial service until 1952, and was later sold to the Commonwealth of Pennsylvania for a State Park.  The bridge continued to support excursion trains and pedestrian traffic until 2002, but was struck by a tornado in 2003, causing its partial collapse.  Today, the remaining part of the bridge has been rebuilt as a pedestrian skyway, complete with a glass floor at its end to look down at the valley far below.

The visitor center provides an excellent multimedia overview of the economics, technology, and history of the structure.  It is well worth a visit.  Similarly, the skyway gives a spectacular view of the structure, the collapsed towers, and the surrounding Pennsylvania forest.  The park has picnic facilities and hiking trails, and a trailhead for the rail trail that has repurposed the old railroad right-of-way.

This is a view of the picnic pavilion from my operating position.  The picnic area also has a number of other open picnic tables and a playground area for the younger crowd.

The Setup for Activation

I stopped into the visitor center to let the staff know of my intention to activate.  I found them to be friendly and accommodating, which always makes activating a pleasure.  I do my best to be a good ambassador for amateur radio and the POTA program.

For activating, I set up at a remote picnic table.  Three tosses got the throw line over a good branch to support my Tufteln 9:1 random wire antenna.  A 15 ft RG-316 cable connected the antenna to my Elecraft KX2.  Completing the station were a 3 Ah LiFePO4 battery, a set of generic earbuds, and VK3IL pressure paddles.  I used a clipboard to keep my notepad from blowing around in the breeze, while I logged with a mechanical pencil.

The picnic table operating station used to activate K-1366.  Included are the KX2, VK3IL pressure paddles, clipboard and log.

The Activation

As I finished getting the station ready to go, it occurred to me that I had a frequency-agile-antenna and rig, a bit more than an hour to operate, and no other operators in the area.  So, I took the opportunity to try for contacts on as many bands as possible, inching my way toward the POTA N1CC Activator award for making contacts on 10 bands from 10 parks.  The park has good cell coverage, so I was able to use my phone to spot myself.  After that, I mostly left things to the Reverse Beacon Network and the POTA spotting gateway, but I was able to use the phone to confirm that my changes in frequency were picked up.

In 70 minutes of CW operation at 5 watts, I made total of 26 contacts, including at least one contact each on the 10, 12, 15, 17, 20, 30, and 40m bands.  An apology to the hunters may be in order, because I was harder-than-usual to contact.  After making a contact on each band, I would QSY to the next at the first significant lull in the action.  I look forward to another trip back to K-1366 to try for contacts on the 3 additional bands needed to complete its activation toward my N1CC.

As you might guess, by using multiple bands, the contacts came from both far and near:  as far as Spain to the east and Oregon to the west, and as near as New York, Pennsylvania, Ohio, and Michigan.  Middling distances were also well represented in the log.

It was a good day in the park, and here is the contact map from a 7-band activation of K-1366.

Equipment

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Conclusion

This outing made for a fun and productive afternoon that was all the more enjoyable for sharing it with my family.

It also made for a great opportunity to shake off the winter blahs, and it held the promise of beautiful spring and summer days for more park activations.

Best 73 de Brian – K3ES

Here is a bonus picture of another semi-famous bridge in northwestern Pennsylvania (it actually has its own Facebook page).  This is Nebraska Bridge, which provides a convenient shortcut across Tionesta Creek.  We knew we would have to take the long way around, but stopped for a look anyway.  Unfortunately the bridge floods several times a year (sometimes becoming completely submerged), because it is located in the upstream end of the reservoir behind the Army Corps of Engineers’ Tionesta Creek Dam.  We had over an inch of rain last week, so the bridge is partially under water.  On the brighter side, 100 miles downstream, the City of Pittsburgh did not flood.

QRPp POTA: How many hunters can I possibly log with only 100 milliwatts–?

As I walked out the door on the morning of Tuesday, March 21, 2023, I grabbed my Elecraft KX2, MM0OPX 40 meter end-fed half-wave, and a key I hadn’t yet taken to the field: my Bamakey TP-III!

I had a full day of errands, appointments, and carting my daughters to/from school, but I also had a good 90 minute window to play radio!

As I’ve mentioned previously, the Vance Birthplace (K-6856) is incredibly convenient this particular school term. I pass by it twice a week, and I feel incredibly fortunate because it’s a wonderful POTA site with POTA-friendly staff. They all know me quite well there at this point.

The Vance site is a small park and the only negative (from the point of view of a POTA activator) is if you have poor timing, you might arrive only to find that a large school group has taken over the site. This is especially a concern on weekdays during school hours–in other words, the time I usually activate Vance.

I pulled into the Vance site that morning and there were no vehicles there other than park staff. A good sign so far!

The only appropriate spot to activate at Vance (if you operate a portable HF station) is in or near the picnic shelter. The rest of the site is where visitors wonder through the old homestead and take guided tours.

I never set up my station in the middle of park activities or in a viewshed.

At the end of the day, we represent all Parks On The Air activators and the amateur radio community at large when we’re in public spaces. The last thing we want to do is detract from others’ park experience.

Before pulling any gear out of the car, I walked into the visitor center and asked the park staff for permission to set up in the picnic shelter. I always do this because if a school or tour group is scheduled to visit the site that day, they almost always need the picnic shelter and have it reserved.

Fortunately, no one had scheduled the picnic shelter, so the park ranger told me, “It’s all yours! Have fun!

Proper POTA Flea Power!

I like shaking up each new activation in some small way so that it’s not a carbon copy of any previous activation.

Since, like most POTA activators, I visit the same local parks the bulk of the time, it adds a little extra challenge and fun to try different gear combinations, experiment with new antennas, or even (as in this case) try different power settings–! Continue reading QRPp POTA: How many hunters can I possibly log with only 100 milliwatts–?

Quick test of a homemade 20-meter band antenna at a beautiful POTA location

by Thomas (DM1TBE)

Intro

You may, or may not, know the situation when you are invited for the birthday of your mother-in-law and the whole day is just a chain of meals. As the SOTA activation of the Wasserberg the day before was rather short, I needed to escape and do something outdoors. An antenna test at a nice POTA location would be perfect.

When I started with amateur radio, many fellow hams told me that a real ham must build its own stuff. This is not easy when you have 10 thumbs like me. However, from time to time I try smaller projects. When I am operating portable, I usually have a 10 m / 33 ft mast with me. I have a 30/15-meter- and 12/17-meter band antenna, both with coils and shorter than my mast, and a homemade 10-meter band antenna which I can raise vertically on my mast. A mast with one of these wire antennas can be used on most of the locations I have visited.

However, I was missing something for the 20-meter band. I have a 10 – 80-meter 5 band antenna that covers 20-meters, but raising it as a sloper with a length of app. 24 m / 79 ft is tricky sometimes.

Building

So, I thought it would be a good project for me. As a half-wave for 20-meters is exactly the length of my mast, and I did not want the feed point at or too close to the ground, I wanted to add a short coil. I had a finished 1:49 mini-impedance transformer from K6ARK available from a project I’ve never finished. So, I just needed a screw, a cable and a piece of a PVC electrical conduit.

I have cut the PVC electrical conduit in three parts, one for the coil, one for the upper-end to allow easier mounting at the mast, and one for a simple strain-relief. My wife was a bit nervous when I used her best knife for cutting it, not sure if she worried about me or her knife. The dimension of the coil is based on pure guess. Bringing the whole antenna then into resonance was easy – just cutting step by step. After completing, the antenna still looks a bit makeshift.

Testing

So, I used an opportunity between two meals to leave my mother-in-law’s birthday and drove to the next POTA park, which is the Kaltes Feld (DA-0410). However, this time I did not go to the SOTA southern activation zone for Kaltes Feld (DM/BW-659), but to the opposite direction, where I have not been before.

The weather was nice, and the way was without any ascent. Behind me, a bit higher, was the SOTA summit Kaltes Feld and on the right the SOTA summit Bernhardus (DM/BW-848).

On Google Maps, I have seen that there is a viewpoint with a wooden bench and table. It was not too hard to find, and the place will probably become one of my favorites. Continue reading Quick test of a homemade 20-meter band antenna at a beautiful POTA location