Tag Archives: Eric (WD8RIF)

WD8RIF takes his dog and his KX2 on a bicycle-portable POTA activation

Many thanks to Eric (WD8RIF), who shares the following field report via his website WD8RIF.com:


by Eric (WD8RIF)

On Saturday, November 4, 2023, I performed a successful bicycle-portable two-fer activation of Lake Hope State Park (K-1968) and Zaleski State Forest (K-5455) in Ohio as part of the Parks on the Air (POTA) program.

On a beautiful and warm early November afternoon, I bicycled the Moonville Rail Trail, on what used to the Marietta and Cincinnati Railroad (wikipedia article) right-of-way, from the tiny village of Mineral, through Zaleski State Forest, diverting from the rail trail near Lake Hope to ride to the Mountain Bike Trailhead overlooking Lake Hope within the state park, for my two-fer activation of the state park and state forest. I was carrying my KX2 Mini Travel Kit on the bicycle, and I was pulling my little dog Theo in a trailer behind the bicycle.

From the Moonville Rail Trail website:

This 10-mile rail trail takes visitors through the beautiful woodlands of southeast Ohio, including Zaleski State Forest; the communities of Zaleski and Mineral; and the Lake Hope State Park wetland areas. The corridor holds water on both sides of the trail, creating a wetland area that is home to numerous species of flora and fauna.

Additional points of interest along this trail are two unique and historic tunnels. King’s Hollow Tunnel (also known as King Switch Tunnel) is a 120-foot structure carved through the rock and lined by a series of 12×12 wooden beams. The Moonville Tunnel is brick-lined and has a long history of train accidents, earning the tunnel a reputation for being haunted.

After parking my car at Mineral, I began my ride on the leaf-covered Moonville Rail Trail at 1645 UTC and soon encountered the first landmark of the ride: the 120′ long, timber-lined King’s Hollow Tunnel.

Leaf-covered Moonville Rail Trail
The leaf-covered Moonville Rail Trail,near Mineral
King's Hollow Tunnel
Entering King’s Hollow Tunnel
King's Hollow Tunnel
Exiting King’s Hollow Tunnel

Riding through the very dark tunnel and continuing west on the Moonville Rail Trail, I soon came to a succession of ponds. Rumor has it that a pair of nesting bald eagles fish these ponds, but I have yet to see them.

Ponds along the Moonville Rail Trail

Ponds along the Moonville Rail Trail
Ponds along the Moonville Rail Trail
A small bit of railroad history along the Moonville Rail Trail.
A small bit of railroad history along the Moonville Rail Trail.
Leaf-covered Moonville Rail Trail
More leaf-covered Moonville Rail Trail

Continuing west, and now being well inside Zaleski State Forest, I soon came upon the brick-lined Moonville Tunnel.

Moonville Tunnel

Moonville Tunnel
Entering Moonville Tunnel

After passing through the Moonville Tunnel, I was forced to divert from the Moonville Rail Trail and follow a gravel road before re-joining the Moonville Rail Trail about a mile further on. (When CSX abandoned the rail line in the early 1990s, they took everything: rails, ties, ballast, and all the bridges. Two of the bridges west of Moonville Tunnel have yet to be replaced.) I was pleased that my new narrow knobby bicycle tires were reassuring on the rough gravel road, but I can’t say Theo in the trailer enjoyed this portion of the ride much.

Back on the Moonville Rail Trail, and continuing west, the rail trail was almost 100% leaf-covered. Continue reading WD8RIF takes his dog and his KX2 on a bicycle-portable POTA activation

Comparing Coaxial Loss in RG-58 and RG-316

by Eric, WD8RIF

I recently decided that I would operate portable during the upcoming ARRL 10 Meter Contest and would combine this operation with a pair of Parks on the Air (POTA) activations, one on the Saturday of the contest and one on Sunday. While putting together my field station for this, I realized I wanted to see how lossy my RG-58 and RG-316 feedline cables were on 10m. Yes, I could have resorted to online charts of feedline losses, and I know that the RG-316 is lossier than the RG-58, but I thought it would be fun and more enlightening to make actual measurements, to empirically determine the losses in my particular coaxial cables.

The two coaxial cables in question are both 25′ in length and both are equipped with BNC male connectors on each end. The RG-58 cable is a high-quality cable that was originally manufactured to be a 10Base2 ethernet cable, but it’s probably now over twenty years old. The RG-316 cable was recently purchased from Tufteln (link) and includes an RF choke near one end.

To make my measurements, I used my Elecraft KX2 (link) to generate RF into an Elecraft DL1 dummy load with RF detector (link), using a digital multimeter to measure the voltage at the DL1’s measurement points. I used the formula that came with my DL1 assembly instructions to calculate the measured wattage:
P = (((V x 1.414) + 0.15))^2)/50

I made measurements in the CW portion of the 10, 15, 20, 40, and 80m bands, with the KX2 set at 5 Watts output.

My first set of measurements was made with the DL1 connected directly to the KX2’s antenna jack using a BNC union:

Direct (no feedline)
Band Volts Watts
10 11.62 5.498
15 11.59 5.470
20 11.61 5.489
40 11.63 5.508
80 11.63 5.508

My immediate observation was that the KX2 appears to be generating more than 5w when it is set to be producing 5w but also that the KX2 output is essentially same from 10m through 80m.

My second set of measurements was made with the DL1 connected to the KX2 through the RG-58 cable:

Direct RG-58
Band Watts Watts
10 5.498 4.809
15 5.470 4.844
20 5.489 5.004
40 5.508 5.184
80 5.508 5.276

My third set of measurements was made with the DL1 connected to the KX2 through the RG-316 cable:

Direct RG-316
Band Watts Watts
10 5.498 4.190
15 5.470 4.322
20 5.489 4.507
40 5.508 4.774
80 5.508 4.959

I was pleased to see to see that both the RG-58 and RG-316 behaved as I expected them to: the loss increased with increasing frequency.

Using the magic of MS-Excel, I created a table of Loss in Watts for both cables, relative to direct connection and to each other:

Direct Difference (Loss) (Watts)
Band Watts RG-58 vs
direct
RG-316 vs
direct
RG-316 vs
RG-58
10 5.498 0.690 1.309 0.619
15 5.470 0.626 1.148 0.522
20 5.489 0.485 0.982 0.497
40 5.508 0.324 0.734 0.410
80 5.508 0.232 0.549 0.317

In looking at this table, it was immediately obvious that RG-316 is much lossier than the RG-58, particularly on 10m. By looking at the row for 10m, one can see that I am losing nearly 0.7 watts in the RG-58 but I am losing over 1.3 watts in the RG-316.

For completeness, I added columns for Loss in dB to the spreadsheet:

Difference (Loss) (dB)
Band RG-58 vs direct RG-316 vs direct RG-316 vs RG-58
10 0.582 1.180 0.598
15 0.528 1.023 0.495
20 0.402 0.856 0.454
40 0.263 0.621 0.358
80 0.187 0.456 0.269

This exercise showed me that for my upcoming ARRL 10 Meter Contest POTA outings, I would do best by connecting my antenna directly to my transceiver, if possible, without using either coaxial feedline. If conditions at the operating site require me to use feedline, I will chose the RG-58 over the RG-316.

The tables also tell me that RG-316 is pretty lossy regardless of the band; for my regular field operating, unless I’m planning to do bicycle- or pedestrian-portable operations where weight and bulk is a consideration, I’ll carry RG-58 instead of RG-316. (I purchased the RG-316 specifically for bicycle- and pedestrian-portable operations, and I plan to continue to use the RG-316 for those applications.)

At some point, I will repeat this exercise with RG-8X, a feedline that is very close in size to RG-58, is less lossy, but is also heavier and stiffer.

From the Archives: A 2022 Postcard Field Report and Activation Video from New River Gorge National Park

These are busy days for K4SWL

These past few weeks have been absolutely crazy for me in terms of activity–I’ve been traveling a lot, doing (involved) DIY projects on the house, searching for a new car, planning a PV system for the QTH, fixing well pumps, helping friends, and doing caregiving for my folks.

It’s all kept me very busy!

I have a sizable backlog of emails that have accumulated during this time. If you’ve sent me a message, I likely haven’t read it yet. Apologies for that. I simply haven’t had time to read and reply.

I thought about skipping a field report this morning, then I remembered an amazing West Virginia camping trip and draft videos I’d already uploaded to YouTube.

In lieu of writing a full field report (and so that I can share a video today) I thought I’d simply share this activation video with a Postcard type field report.

2022 West Virginia POTA Camping Trip

Last year (2022), in lieu of going to the Dayton Hamvention, my buddies Eric (WD8RIF), his son Miles (KD8KNC), and I spent a long weekend activating parks and camping in the New River Gorge area of West Virginia. Click here to read more about that trip.

The camping trip was absolutely amazing and we activated a number of parks during that time.

I made activation videos at most of the parks we visited, but with my summer travels and activations in Canada last year, I skipped over several of the videos I’d uploaded so that I could publish my Canadian activations while I was still in Canada.

New River Gorge National Park (K-0696)

 

The following activation video was made on May 21, 2022 as WD8RIF and I activated K-0696.

 

I’ve yet to re-watch this video myself, but I remember clearly that this particular day we had atrocious band conditions.

Indeed, rough bands were present during much of our weekend camping trip, but it never stopped us from having fun or activating our parks.

In terms of gear, I used my trust Elecraft KX2 paired with my Chameleon MPAS 2.0 antenna system.

Activation video:

Click here to watch on YouTube.

Logs

I hope you enjoy this below video and, as always, thank you so much to my Patreon and Coffee Fund.  supporters! You’re simply brilliant!

72,

Thomas (K4SWL)

Beating the POTA propagation blues at Stonelick State Park!

As mentioned in my previous POTA field report, I had the great pleasure of playing POTA on May 21, 2023 with a number of friends. We all played hooky on the final day of Hamvention. The first two activations of the day were with Vince (VE6LK/AI7LK), Charlie (NJ7V), Eric (WD8RIF), and Miles (KD8KNC).

Charlie and Vince had to leave us after the second activation of the day because both of them had travels in store that afternoon.

Eric, Miles, and I grabbed lunch at a nearby town, then made our way to our final park of the day.

Stonelick State Park (K-1993)

We pulled into Stonelick State Park a little after 3:00 PM and found the best open area to set up our stations. This park was a new one for me and, I believe, for Eric as well. (FYI: Miles didn’t hop on the air that day, but helped his dad set up his POTA station.)

Eric’s station

Eric set up his station on a bench overlooking Stonelick Lake. He supported his 28.5 foot vertical wire antenna on a 31′ Jackite fiberglass telescoping pole which he strapped to the bench. His transceiver of choice was the Elecraft KX3.

Note that Eric writes detailed field reports for all of his activations and field activities on his website.

For more details on this activation from Eric’s perspective, click here!

Working with poor propagation

Instead of using a vertical, I opted to deploy my recently cannibalized 40 meter end-fed half-wave. I felt a full 40M EFHW, properly deployed, would increase my chances of logging stations on a day where contacts were few and far between. Continue reading Beating the POTA propagation blues at Stonelick State Park!

QRP POTA with Friends: Two Park Activations with VE6LK, NJ7V, WD8RIF, and KD8KNC!

Sunday, May 21, 2023, was the final day of Hamvention.

I traveled to Hamvention with my buddies Eric (WD8RIF) and his son Miles (KD8KNC). We decided in advance that instead of attending Hamvention that Sunday (after having spent all day Friday and Saturday there) we’d opt for a relaxing day playing POTA near Dayton/Xenia.

We weren’t, in fact, the only ones who skipped Hamvention that Sunday–our friends Vince (VE6LK or AI7LK State-side) and Charlie (NJ7V) did as well, so we decided to play POTA together!

Both Charlie and Vince were leaving the Dayton area that afternoon, so they needed to finish up their activations by noon at the latest. We decided we could fit in two activations that morning before Charlie and Vince headed back, then Eric, Miles, and I would hit a third park in the afternoon. Actually, Miles never planned to hop on the air, but he was both our ride and valuable POTA support!

Vince and Charlie in the rear view mirror!

Charlie and Vince met us at our hotel around 9:00 AM and we drove to the first of two parks we’d activate together.

Cowan Lake State Park (K-1943)

Charlie (NJ7V) and Vince (VE6LK/AI7LK) ready to deploy their gear.

The weather was beautiful that day, but the space weather, much less so. We knew in advance that it would be a struggle based on the propagation forecast and numerous reports from other activators.

Vince set up his Elecraft KX3-based station in the trunk/boot of his rental car.

He deployed his “low-slung” wire antenna (read more about that here) and hit the air.

Vince’s low-slung antenna

Eric described the POTA station he deployed in his field report on WD8RIF.com:

Eric found a shady, level spot near the parking lot, strapped his 31′ Jackite telescoping fiberglass pole to his folding camp-chair, deployed his 28½’ wire vertical on the pole, set up his Elecraft KX3 on the camp-chair’s flip-up table, and was on the air at 1412 UTC. Eric began his operation with a lovely touch-paddle which he had unexpectedly been given as a gift from the builder, Brian Manley, K3ES

Eric’s station

Note that Eric carefully documents each and every one of his field activations and field contests on his website. His field reports date back to Field Day in 1995!

I found a spot to set up next to the lake under the shade of a large tree. I deployed my Tufteln no-transformer 28.5 foot end-fed random wire.  This antenna is simply two lengths of 28.5′ wire: one wire for the radiator and one for the counterpoise. The KX2’s internal ATU does all of the heavy lifting. Continue reading QRP POTA with Friends: Two Park Activations with VE6LK, NJ7V, WD8RIF, and KD8KNC!

Tu-Endie-Wei State Park: Low-impact QRP fun and one speedy P2P confirmation!

On Wednesday, May 17, 2023, I did something I hadn’t done since 2019: I woke up, hopped in the car, and started my journey to the Four Days In May and the Dayton Hamvention!

It’s about a seven hour drive from my QTH directly to Dayton, but in the 12+ times I’ve attended Hamvention, I’ve never actually driven there directly. Instead, I drive to Athens, Ohio, spend the evening with my buddy Eric (WD8RIF) and his family, pack one car, then carpool to Dayton.

Heading to Athens, I like to time my drive so that I pass through Beckley, West Virginia around noon and enjoy a fine lunch at Tamarack Marketplace. It’s always a nice reward after spending a little over four hours in the car.

This year, I enjoyed local almond-crusted rainbow trout, braised kale, and dill pickle soup. I know…dill pickle soup sounds a bit strange, but trust me: it was exquisite. The food at Tamarack is always top-shelf because the chefs behind the scenes are training for positions at the famous Greenbriar Resort.

Park en route

Of course, another way to break up the trip and add a little fun is to activate a park. I decided I wanted to activate a new-to-me park not too far off my route, so I consulted the regional POTA expert: WD8RIF.

Eric is an avid park activator and has hit pretty much every park within a three hour drive of his QTH. He made a few suggestions, and I opted for Tu-Endie-Wei State Park in Point Pleasant, West Virginia.

Tu-Endie-Wei State Park (K-1823)

Tu-Endie-Wei is a small, four acre state park, situated at the confluence of the Kanawha and Ohio rivers in Point Pleasant, WV. Indeed, the name “Tu-Endie-Wei” is a Wyandotte word meaning “point between two waters.” Continue reading Tu-Endie-Wei State Park: Low-impact QRP fun and one speedy P2P confirmation!

Hamvention and FDIM 2023: Wow…what a weekend!

Wow! What a show!

I got back from my 2023 Hamvention trip last night and am now trying to catch up after nearly a full week on the road.

A way too close-up of Eric and his son Miles in the background!

As in past years, I traveled to Hamvention with my buddies Eric (WD8RIF) and his son Miles (KD8KNC).

It was amazing to meet so many readers, subscribers, and POTA/SOTA friends in person!

When I wasn’t walking around the Hamvention grounds checking out the inside vendor tables and outdoor flea market, I was hanging out with friends at the Halibut Electronics/Ham Radio Workbench table.

It was great to finally meet Vince (VE6LK) and Mark (N6MTS) in person. Hopefully, next year, we can have the whole HRWB crew at the table!

The Unseen Bean table next to the Halibut table (you can *just* see Mark and Paul to the left).

Side note: It was a true surprise and joy to discover that the amazing crew of The  Unseen Bean were next door to us. I’m a bit of a coffee snob, so it was wonderful having Gerry and his amazing team so close. I bought a lot of coffee!

Of course, my favorite thing about Hamvention is the QRPARCI Four Days in May (FDIM) conference.

Eric and I didn’t arrive in enough time to enjoy the Thursday presentations, but we did make it to Vendor’s night that evening. It was busier than I ever remember.

As we walked into the conference room, there was already a massive line to purchase Hans’ new QRP Labs QMX transceiver kit.

Of course, I bought one (serial number 28, evidently)! It will take me some time to build this as I have a crazy June schedule filled with travel and camping.

We also attended FDIM Club Night  and the Homebrew contest on Friday. It was so much fun.

Receiving my award from the amazing David Cripe (NM0S). Photo by Charlie (NJ7V).

I was over the moon to have been inducted into the QRP Hall of Fame at the Saturday Evening FDIM banquet. I’m not sure what I’ve done to deserve this, but I’m incredibly grateful and humbled. Many of my QRP mentors are in the QRP Hall of Fame.

Thank you to those who nominated and selected me! What an incredible honor.

The “Vincester” (VE6LK) operating POTA from the back of his rental car!

On Sunday, we skipped Hamvention altogether and joined Charlie (NJ7V) and Vince (VE6LK) for a few local park activations.

Charlie using my KX2 and PackTenna to hammer out POTA contacts while dealing with the QRM of a nearby rural highway! Impressive op, this Charlie!

Vince and Charlie joined us for two POTA activations (during horrible band conditions, I might add), then Eric, Miles and I capped off the short POTA run with one more activation after lunch.

Monday was all about taking it easy…

Eric and I took all day Monday to “decompress” at the US Air Force Museum. Although I’ve visited this museum a dozen times before, it never gets old and the displays and exhibits are ever-changing.

I think it’s one of the best aviation museums in the world.

Tuesday (yesterday) I drove back to the QTH and fit in one short activation at Yatesville Lake State Park in eastern Kentucky. I recorded this one, so there’ll eventually be a full field report and activation video!

All-in-all, I fit in five POTA activations over the Hamvention trip!

Now that I’m back at the QTH, I’m prepping for a family camping trip. This is going to be one busy summer indeed!

Again, so many thanks to all of you who introduced yourselves over Hamvention and FDIM. It was amazing to meet you all! And, again, a very special thanks to the QRP Hall of Fame committee–being inducted is the true highlight of my amateur radio journey!

Did you attend Hamvention? Or did you have other radio plans this past week? Feel free to comment!

Pairing the Elecraft KX2 and Tufteln Random Wire at Gauley River National Recreation Area

During my West Virginia POTA expedition with Eric (WD8RIF), Miles (KD8KNC), and Theo (The “Great Warg”) dog, the last park we hit on Friday, May 20, 2022 was Gauley River National Recreation Area (the first park  was New River Gorge  and the second was Hawk’s Nest State Park).

Back in the days of National Parks On The Air (2016), I activated this site (the Gauley River, actually) but it was snowing, the winds were howling, and being on a tight schedule, I didn’t hang around to explore the site.

Gauley River National Recreation Area (K-0695)

Gauley River with the prominent Summersville Dam in the background.

On Friday, May 20, 2022, the weather was nearly ideal.

Eric, Miles, and I decided to venture down to the river for our activation.

We knew that it would compromise our signals to some degree setting up at the base of the Summersville Dam instead near the top, but how can you pass up scenery like this–?

The banks of the river were very rocky and there wasn’t a lot of space for Eric and I to separate our stations, so we knew our signals might interfere with each other.

Eric and Miles setting up.

Eric set up his trusty 31′ Jackite pole which supports a 28.5 vertical wire–the entire setup is attached to his folding chair. FYI: Eric tells me he’ll do a little write-up here on QRPer.com detailing his antenna setup in the near future.

You can barely see it in the photo above, but I deployed my Tufteln Random Wire antenna which I have configured with a 31′ radiator and one 17′ counterpoise. Continue reading Pairing the Elecraft KX2 and Tufteln Random Wire at Gauley River National Recreation Area

New River Gorge: Pairing the Tufteln 9:1 Random Wire with the Elecraft KX2

When Eric (WD8RIF) and I hatched our plan to do a mini POTA expedition in West Virginia, there was one site I wanted to activate more than any other: New River Gorge National Park.

More specifically, I wanted to activate the park by way of the scenic one-way road that starts near the New River Gorge Visitor’s Center and descends down to the Tunney Hunsaker Bridge (the “old” New River bridge).

Why? Because in December 2016 during the National Parks On The Air (NPOTA) program, I passed through West Virginia and activated some very rare parks on my way to a multi-day park run with Eric in Ohio. I fully intended to activate the New River at this very spot (underneath the “new” New River Bridge) after hearing how amazing the drive was from Eric.

Unfortunately, I happened to time my trip through West Virginia on a day when we received about an inch of snow. Even though (at the time) I was driving a Toyota minivan with nearly bald tires, the snow didn’t pose a problem at any other site, save this one. I had to change my plans and activate the New River in a spot where the access had less elevation change on a narrow snow-covered road. With my Subaru, this wouldn’t have been an obstacle in the slightest.

I was looking forward to going back to this site and was very pleased to see that Eric and his son, Miles, had already planned this trip in the draft itinerary!

New River Gorge National Park (K-0696)

On the morning of May 20, 2022, Eric, Miles, Theo the dog, and I left our campsite at Babcock State Forest and made our way to the New River Gorge Visitor’s center next to the New River Bridge.

If you’re ever in this area, I’d highly recommend checking out this visitor’s center as it has some well-designed exhibits detailing the impressive engineering that went into the construction of the New River Gorge Bridge.

There are also some fantastic views from the visitor’s center and from its short gorge overlook trail.

From the trail overlook at the visitor’s center we could see the spot where we planned to activate near the Tunney Hunsaker Bridge deep in the gorge (see photo above).

The drive into the gorge was quite scenic with a number of spots to park and take in the enormity of the New River bridge.At the bottom of the gorge, the view was pretty spectacular as well!

My partners in crime: Eric, Miles and “The Great Warg” (Theo the dog)

Tufteln 9:1 EFRW (End-Fed Random Wire) antenna

I mentioned in a previous post that long-time QRPer.com reader and supporter, Joshua (KO4AWH), runs an Etsy store with a wide range of products primarily designed for field operators.

Besides the Elecraft T1 protection case I mentioned previously, he also sent a couple of his QRP field antennas for testing and evaluation (to be clear: free of charge). Thanks, Joshua!

I decided to break in his EFRW QRP Antenna Long Wire at New River Gorge. Since Eric and I would be operating pretty close to one another, I wanted to use a random wire antenna that would give me a bit of frequency agility to hop around and avoid harmonically-related bands Eric might be using. This Tufteln antenna fit the bill! Continue reading New River Gorge: Pairing the Tufteln 9:1 Random Wire with the Elecraft KX2

POTA activation with WD8RIF at Beury Mountain WMA in West Virginia!

Grist Mill at Babcock State Forest Headquarters

This year, instead of attending the 2022 Hamvention, my buddy Eric (WD8RIF) and I hatched another plan.

Eric and I–along with his son Miles (KD8KNC) and sometimes Mike (K8RAT)–attend Hamvention every year it’s held.  We’d planned to do the same this year especially with it being the first in-person Hamvention since 2019.

As Hamvention approached though, we both had a lot going on in our lives and decided to save a little money, a lot of travel time, and meet in West Virginia for several days of POTA activations and just hanging out. I explain a bit more about the decision in this previous post.

We camped three nights and performed activations together for four days. It was an absolute blast!

Setting up camp

On the afternoon of Thursday, May 19, 2022, we (Eric, Miles, Theo the dog, and I) met at Babcock State Park and set up our tents at the adjoining campsites we’d reserved.

Babcock would serve as our home base for the entire WV POTA expedition.

As a bonus, Babcock State Park (K-1798) is also a POTA entity, so we activated it in the late shift after dinner each evening.

As soon as the tents were deployed that afternoon, we all jumped into Mile’s Subaru with our radio gear and hit our first park!

Beury Mountain Wildlife Management Area (K-7036)

Beury Mountain WMA is so close to Babcock State Park, I have to assume they share a common boundary.

The drive to the site was very brief but as with many WMAs and Game Lands, the entry road isn’t paved and there are rough patches you might need to avoid. Of course, Mile’s Subaru was way over-engineered for this task! Continue reading POTA activation with WD8RIF at Beury Mountain WMA in West Virginia!