Tag Archives: QRP

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

POTA with a 20 Meter Vertical Delta Loop and the Elecraft KX2!

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There’s a portable wire antenna design I’ve been wanting to put on the air for POTA and SOTA for what seems like ages: a 20 meter vertical loop.

I mentioned in a Ham Radio Workbench podcast episode a few months ago that I planned to build a field-portable delta loop antenna and that led to a mini discussion about configurations, feed points, height off the ground, etc. and how all of those factors can influence the characteristics and dynamics of the antenna.

Vertical loops are pretty fascinating and incredibly effective.

Delta loops are super easy to build (no more difficult than an EFHW) but this summer has been insanely busy for me and I simply hadn’t gotten around to it yet.

Then my good friend Joshua (N5FY) who runs tufteln.com sent me a prototype 20M delta loop in the mail. We’d been talking delta loops and he couldn’t help but build one. He asked that I take it to the field and put it on the air, then give him any feedback and notes I might have.

Joshua’s design incorporates a 4:1 transformer and was cut to be resonant on 20 meters. I’d actually planned to build one identical to this because the type of loops I’ve deployed at home have been fed with ladder/window line which isn’t as portable as something I could feed with RG-316.

Holmes Educational State Forest (K-4856)

On Friday, September 1, 2023, I grabbed the delta loop antenna and the KX2, then made my way to Holmes Educational State Forest.

I knew that Holmes wouldn’t be busy and that there were a number of options for spots to set up.

After a little scouting, I found a great site to set up the antenna.

I planned to set up this antenna as close as I could to an equilateral triangle with the apex up about 30 feet and the feedpoint in the middle of the base of the delta.

Deploying the antenna in this configuration meant that I only needed one line in a tree to hoist the apex of the delta and two lines to pull out the corners of the base.

I brought along some paracord with tent stakes to secure the base corners of the loop. In the end, though, I simply attached the paracord to trees instead of using the stakes.

I (somewhat reluctantly) made a video of the entire activation including the antenna deployment. I wanted to take my time deploying this antenna for the first time, so the antenna deployment section of the video is much longer than usual.

You absolutely cannot see the loop in this photo, but it’s there…I promise!

In the end though? It wasn’t as difficult as I thought it would be. The last vertical delta loop I deployed was a 40 meter loop which is roughly double the size–in my head I was expecting the aperture to be larger than it was.

My arborist line and 12 oz weight hanging to provide a gentle tension to hold the apex of the loop up.

The 20 meter loop is actually pretty compact and almost as easy as setting up as an inverted vee.

With my loop properly deployed, it was time to hit the air! Continue reading POTA with a 20 Meter Vertical Delta Loop and the Elecraft KX2! →

Field Reports, News, Portable, POTA, QRP, QRP Radios

Getting To Know You Series: The Mountain Topper MTR-3B — My thoughts, notes, and a POTA activation!

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I’m very fortunate in that in the past few years I’ve accumulated a number of QRP radios that I use in rotation when I do park and summit activations.

I’m often asked for advice on choosing radios, and as I’ve mentioned in the past, I feel like the decision is a very personal one–everything is based on an operator’s own particular preferences.

Over the years, I’ve written formal reviews about most of the field radios in my collection. In those reviews, I try to take a wide angle view of a radio–to see how it might appeal to a number of types of operators. I highlight the pros and cons, but I don’t focus on my own particular take because, again, my style of operating might not match that of readers. I try to present the full picture as clearly as I can and let the reader decide.

The Getting To Know You series gives me an opportunity to highlight one radio at a time and showcase what I love about it and why it’s a part of my permanent radio collection. After we spend a bit of time talking about the radio, we’ll do a park or summit activation with it!

The Mountain Topper MTR-3B

The fourth radio in my Getting To Know You series is the Mountain Topper MTR-3B by LnR Precision.

And, spoiler alert: I think the MTR-3B is one of the most ingenious little QRP transceivers ever made.

In truth, all of the Mountain Topper series radios are outstanding if you’re a CW operator and into truly portable, ultra-lightweight, field radio activities.

Steve Weber (KD1JV), the designer behind the ATS and Mountain Topper series, created a brilliant platform that has only been improved upon over time.

I’ve only ever operated the MTR-3B and MTR-4B. That said, I’d love to add a high band MTR-5B to my field radio collection someday.

The Mountain Topper MTR-4B V2. Read the review here.

I recently reviewed the MTR-4B (see photo above) and I absolutely love it, but in truth? I prefer the more compact MTR-3B simply because it’s rare that I operate 80 meters in the field and I like the even more compact from factor of the 3B. It’s literally the size of a pack of playing cards.

That said, I wish the 3B had some of the later model MTR-4B upgrades like easy-access sidetone adjustments and power/SWR metering, but I still prefer the MTR-3B.

What? A second MTR-3B?

Confession time: last month, a good friend and QRPer.com patron/supporter offered to sell me his MTR-3B for a very fair market price. He could have put this on eBay or in ham classifieds and surely commanded a much higher price, but he knows how much I love this radio and offered his never used MTR-3B to me.

It didn’t take long for me to accept his offer–like quicker than the blink of an eye quick.

I’ve been looking for a second MTR-3B because 1.) these radios are no longer manufactured and 2.) if something happened to my one and only MTR-3B, I would sob uncontrollably.

I should state here that I blame my buddy, Vince (VE6LK), for introducing the “Two is one, one is none” slogan. Over time, I’ve convinced myself to keep two copies of my favorite radios such as the KX1, FT-817, and MTR-3B.

Vince, by the way, is a card-carrying, certified enabler!

Holmes Educational State Forest (K-4856)

On Friday, August 25, 2023, I made my way to Holmes Educational State Forest to play a little POTA with the MTR-3B.

The site was very quiet. The new school year had just started,  so it was too early for school field trips at the park.

I had my pick of spots to set up, so I chose a new-to-me picnic table. Continue reading Getting To Know You Series: The Mountain Topper MTR-3B — My thoughts, notes, and a POTA activation! →

Antennas, Field Reports, News, Portable, POTA, QRO, QRP, Reviews

Golden Hour QRP POTA Activation with the REZ Ranger 80 Portable Vertical Antenna

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On Sunday, August 20, 2023, en route to check in with my parents, I popped by Lake James State Park for a little early evening POTA fun.

In the car, I’d pack the Elecraft KX2 kit and I still had the REZ Ranger 80 vertical antenna system on loan from REZ Antennas (it’s since been returned to them).

The last time I deployed the REZ was on Mount Mitchell in some pretty sketchy weather.  While I recorded a couple of short videos, I didn’t record a full activation video since we were having a family picnic that day.

Before sending the Ranger 80 back, I wanted to fit in a proper activation showing how I deploy the antenna, how I tuned it for the first time, and how it might perform on the 40 meter band.

Lake James State Park (K-2739)

It was golden hour at Lake James and the park was bustling with activity. There were kids running around, parents chasing them, and several families cooking out at the numerous picnic sites.

I sought out a location that was private and quiet mainly because the Ranger 80 antenna has four 31 foot radials, thus a large footprint; I didn’t want children, pets, or anyone tripping on the ground radials.

Fortunately, one of my favorite spots overlooking the lake was free, so I could simply set the Ranger 80 up in the woods where folks weren’t walking.

The Ranger 80 is super easy to deploy: simply extend the vertical, attach it to the top of the base, then attach the stainless spike to the base and plunge the entire thing into the ground. Next, you deploy the four radials and connect it to the base of the antenna.

It only takes a couple of minutes especially since the counterpoises are wound using the over-under method. I simply tossed each line into the woods and didn’t worry if they were all lying perfectly on the ground.

Note to REZ: Consider offering optional high-visibility counterpoise wires–for those of us setting up in busy parks, it would make the ground radials more conspicuous to passersby.

Next, I needed to tune the Ranger 80 for the forty meter band.

Typically, when I use a sliding-tap tuning coil style antenna like this one, I turn on the radio and move the coil until I hear an audio peak, then I fine tune it by sending a “dit” on the radio, checking the SWR, and adjusting the coil slider.

That evening, though, I had my RigExpert AA-35 Zoom antenna analyzer so I set it to continuous SWR monitoring and adjusted the coil until I achieved a good match. Easy.

I should add here that when you use an antenna like this frequently, you learn where the best tap points are on the coil thus tuning becomes easier. My friend Alan (W2AEW) actually made a PVC rig for his coil antenna (click here to check it out).

With the antenna all set up and ready to rock-and-roll, I simply hooked up the Elecraft KX2, my VK3IL pressure paddles, and prepared the logs.

It was time to play radio! Continue reading Golden Hour QRP POTA Activation with the REZ Ranger 80 Portable Vertical Antenna →

Digital Modes, Field Reports, FT8, Guest Posts, News, Portable, POTA, QRP

Conrad’s Kayak POTA Activation on Minnie Island

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Minnie Island K-1698 Kayak Activation

by Conrad (N2YCH)

9/1/2023

As many readers know, I am on a Parks on the Air (POTA) quest to activate all references in the state of Connecticut. There are 136 parks, and four of them are only accessible by boat. You may have seen my recent field report here on QRPer.com about activating three islands located in the Connecticut River. For those islands, I enlisted professional help from a boat captain with the navigation experience and proper tools (like radar and maps) to access those islands.

The final boat-only accessible island is Minnie Island, located in the middle of Gardner Lake in the town of Salem, Connecticut. I DO have experience kayaking on a Lake, thanks to my uncle, who has two kayaks and has taken me out on Tillson Lake in New York’s Hudson Valley a number of times. Unlike the challenges the river posed, I felt like I could manage the lake on my own. I did need a kayak, though, which I didn’t own.

I had to do some kayak research then. In case you didn’t know this, different kayaks have different specifications on how much weight they can hold. I’m a big guy, six foot five inches tall. Add me, plus a backpack of radio equipment, and I needed to be sure I didn’t sink.

I started on eBay, looking for people selling used kayaks. There are all different kinds of kayaks. Some made for the ocean and dealing with waves and others for casual lake paddler. Some have rudders, some have small, sealed cockpits and some even have motors. I had no idea how serious you could get with all of the accessories and options. I was really looking for something simple.

After striking out on eBay, I found a fishing supply store at the end of the Connecticut River that also had kayaks you could rent. I visited their web site and was happy to see that they were having an end of season clearance sale, where they were selling their rentals. I visited their shop and after looking at my options, I ended up buying an Old Town Vapor 10 kayak. It came with a paddle and life jacket and it was 50% of the price new. A great bargain. The added benefit is now I own my own kayak…a friend suggested that now that I do, there might be IOTA activations in my future.

What sold me on the Vapor 10 was the open cockpit. No trying to squeeze myself in and plenty of room to bring a backpack with the radio equipment in-between my legs. Also, I was able to fit it into my Jeep Wrangler.

Next stop, the Gardner Lake Boat Launch, which was about a 30 minute drive North. Continue reading Conrad’s Kayak POTA Activation on Minnie Island →

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

Alan’s Long Beach Island Radioactive Vacation!

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Many thanks to Alan (W2AEW) who shares the following guest post:

Radioactive vacation on LBI (Long Beach Island)

by Alan (W2AEW)

We look forward every August to our much needed 2 week vacation “down the shore” as we say here in New Jersey.  Our vacation spot of choice is Long Beach Island, one of the barrier islands on the Jersey coast. This is an 18 mile long island that hugs the Atlantic coast of southern NJ, just north of Atlantic City.  The part of the island we love to stay in is called Surf City.  The Surf City area has been continually populated since 1690, although the town of Surf City was officially established in the late 1800s.

The XYL and I are both pretty fair skinned, so laying out on the beautiful LBI beaches everyday isn’t really our thing.

So, the house we rent is actually on the bay side, facing west, overlooking the Manahawkin Bay.  We enjoy sitting back and watching (and occasionally participating in) the wide variety of activities on the bay – the fishing & crabbing, the power boats, personal watercraft, paddle boarding, sailing, etc. Our favorite though, and the thing that keeps us coming back every year, are the awesome sunsets over the bay.

Of course, we always need to find a house that is pet friendly. Sophie loves LBI also, especially the long walks around town with the sea breeze.  Here she is waiting at the top of the stairs – hoping to hear the magical word….  “walk”…

LBI is certainly a family and pet friendly place.  Even the local Dunkin Donuts has a wall dedicated to the local pets:

I certainly planned to do a fair amount of QRP operating while on vacation – both from the rental house as well as POTA from the nearby parks (more about this soon).  But lest you think this was purely a radioactive vacation, let me reassure you that we did a lot of “normal” vacation activities too.

Like most, a lot of vacation is about relaxing, eating, other stress relieving activities, eating, shopping, and of course, eating…  Breakfasts were typically some homebaked muffins, or even some fresh biscuits from the oven with some great Black Bear Jam – a gift from a good friend in NC.  Yummy!

The main meals were a mix of good ‘ole home cooking and some great local cuisine, including great Jersey pizza from Panzone’s,  fresh local seafood from Mud City Crab House and   Pinky Shrimp’s Seafood Company.  Of course, no trip to LBI is complete without getting some of the best burgers in the state from Woodies Drive In in Ship Bottom, right next to Flamingo Mini-Golf – one of *many* mini-golf places on the island.  I’ve personally seen Ray Romano golfing at Flamingo with his family.

I did manage to do some other “normal” vacation activities besides radio…  A couple of relaxing afternoons on the beach, completed a 1000 pc jigsaw puzzle, read two James Patterson novels, lounging on the decks overlooking the bay and lots of strolls with the XYL and the dog.

But who’s kidding who, this is a QRP blog right!  Let’s get radioactive!

One of the first tasks after unpacking was setting up the antenna at the rental house.  The location was great, right next to the bay!  I strapped my slip-fit military fiberglass poles to the corner post of the 2nd floor deck, which made a great support for the 40m EFHW wire.  This is the same UNUN & antenna that I featured in a “build” video a few years ago. Continue reading Alan’s Long Beach Island Radioactive Vacation! →

Field Reports, News, Portable, QRP, SOTA

QRP SOTA: Beautiful day for a hike to the summit of Bakers Mountain!

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Sometimes, I crave a nice summit hike but don’t have enough time in the schedule to fit in a long one.

When I’m doing overnight trips to my hometown of Hickory, NC, my go-to spot for a proper hike is Bakers Mountain Park. The icing on the cake is that Bakers Mountain is also a SOTA summit (W4C/WP-007).

I wish Bakers Mountain Park was a POTA site as well, but at present the US POTA administrators aren’t including county and municipal parks–only state and national parks.

For more information about Bakers Mountain, check out this field report in the archives.

On Tuesday, August 1, 2023, I only had about 2.5 hours to fit in a hike and SOTA activation. That was plenty of time to hit Bakers Mountain!

Bakers Mountain Park has a nice long-ish loop around the perimeter of the park called the “Bakers Mountain Loop”; it’s about 2.75 miles long and has a reasonable amount of elevation change over the topography.

Adding in the spur trail to the true summit of Bakers Mountain, I’d say my total hike is about 3.25 miles or so.

Lookout platform on the Bakers Mountain Loop Trail.

Note that I actually include a bit of my hike to and off of the summit in the activation video below.

Setting up

Can you spot the MW0SAW EFHW hanging in the tree?

Once on the summit, I chose a spot to set up. Since I planned to deploy my 40 meter end-fed half-wave, I looked for a branch overhanging the summit perimeter trail.

Next, I deployed my trusty 40 meter EFHW that Steve (MW0SAW) made.

I also forgot my Tufteln/N0RNM knee board, so used my GoRuck GR1 backpack as a field desk. It worked pretty brilliantly, actually. Continue reading QRP SOTA: Beautiful day for a hike to the summit of Bakers Mountain! →

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

N3HXZ: SOTA and POTA in the San Juan Islands!

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Many thanks to Dale (N3HXZ) who shares the following guest post:

SOTA and POTA in the San Juan Islands

by Dale Ostergaard (N3HXZ)

My wife and I like to take educational tour vacations from time to time. The outfit we mostly use is Road Scholar.

The tours are geared around education and immersion in local cultures and experiences. In addition, you meet a lot of like-minded people on the tour and make new friends.  Last summer we wanted to take a vacation to the pacific northwest. We had never been there and came across a tour through the San Juan Islands. The islands are located north of Seattle and east of Vancouver. Touring the islands is made easy on a guided tour as they arrange for all transportation between islands and on land.

Washington State has an excellent network of ferries serving the island which makes for easy connections to the islands.

After we booked the vacation I began wondering if there were SOTA and POTA opportunities on the islands. I quickly looked up sites on the SOTA Goat app and the POTA website.  Low and behold there was a treasure trove of parks and summits!

SOTA Map
POTA Map

Realizing the opportunity, I cross checked our itinerary with the parks and summits. The difficulty of course is that when you are on a guided tour, you have very little flexibility in the schedule, let alone transportation to go off on your own. After researching, I found 4 opportunities that included 3 parks and 1 summit. The parks were K-0061 San Juan National Historic Park, K-3223 Lime Kiln Point State Park, both on the island of San Juan, and K-3232 Moran State Park and summit W7W/RS-065 Mount Constitution on Orcas Island. The Summit lies inside the park so I had the opportunity to grab both with 1 activation. Continue reading N3HXZ: SOTA and POTA in the San Juan Islands! →

Field Reports, Guest Posts, News, Portable, QRP

POTA Quest: Conrad Activates Three Connecticut River Islands!

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Connecticut River Island Activations

by Conrad (N2YCH)

August 22, 2023

I’m on a POTA quest – activate all references in the state of Connecticut. There are 136 parks in the state and four of them are islands, only accessible by boat. Three of which are in the Connecticut River: Dart Island (K-1659), Haddam Island (K-1673) and Selden Neck State Park (K-1714).

I don’t own a boat. Plus, even if I did, I’m not sure I’d be brave enough to tackle the Connecticut River on my own. I have no experience navigating these waters, and it’s a real river, more than you’d want to try with a kayak with the currents and all. Even the POTA web pages for these islands warns “Boating experience and channel knowledge recommended.”

This created a dilemma –  how do I get to and activate these islands?

I strategized for a while and decided on chartering a “river cruise” boat who actually listed visiting Dart and Haddam islands as part of their services on their web site. The boat captain hadn’t visited Selden Neck, so that was new, even to him. However, he had a radar, and depth finder on his boat that mapped the channel and gave us the depths of the waters near each island. His boat drew 3 feet, so we had to have at least that much depth in each place we stopped. He also had a small “Achilles” boat that connected to the back of the cabin cruiser that we used to get ashore.

We left from a marina that was directly across the river from Dart Island but decided first to head South to Selden Neck and then work our way back North to Haddam and Dart.

Putting aside the island access for a moment, I also had to strategize on what gear to bring along to do these activations. I am primarily a digital mode activator and have used the Elecraft KX3 and AX1 antenna in many of my travels where I needed a light kit.

However, I thought, I can use the KX3 but take along a more efficient antenna. I used my Buddipole tripod and mast with a versa-T and a 17’ 9” Alpha whip antenna and a 15’ counterpoise elevated off the ground with a Home Depot electric fence post.

Because the mast elevates the versa T to 11’ high, and the telescoping whip at another 17’ 9”, I was able to get the antenna nearly 30’ off the ground to the top. It was easy to pack and carry and provided better coverage than the AX1 would have. You’ll see just how good QRP on FT8 can be in my Dart Island coverage map.

Equipment List:

Once I decided on the KX3 and the Alpha telescoping whip, I packed my backpack with the computer, cables, the radio, batteries and extra antennas. I always have the AX1 and a Packtenna EFHW as backups and they fit easily into the backpack. Two bags would need to make it from the boat to each island, the radio gear with computer and the antenna bag with the tripod and telescoping antenna. To be safe, since it would not be easy to do this again if something didn’t work, I brought along an entire backup system, packed in a second backpack with an Icom 705 and my spare laptop.

One of my goals with POTA is local discovery, and my boat captain was very knowledgeable about the river and the various sites along the shores. I learned that a manufacturing plant owned by Pratt and Whitney still uses water from the river as part of their manufacturing processes and also that there was a sea plane airport along one bank. I saw an automobile ferry along the way that I had no idea existed and saw the site of the former Connecticut Yankee nuclear plant that was decommissioned in 2004. Continue reading POTA Quest: Conrad Activates Three Connecticut River Islands! →

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

Pairing the Yaesu FT-817ND and Chelegance MC-750 at South Mountains State Park

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After completing a lively little POTA activation at Lake James State Park (K-2723) and then Table Rock Fish Hatchery (K-8012) on the morning of Monday, July 31, 2023, I decided to squeeze in one more POTA adventure on what became a mini rove.

Since nearby Tuttle Educational State Forest is closed on Mondays in the summer, I chose to visit South Mountains State Park (K-2753) instead–it was only a few minutes further afield than Tuttle.

After leaving Table Rock, I picked up a quick lunch in Morganton and drove to the main entrance of South Mountains and set up at the equestrian picnic area.

South Mountains State Park (K-2753)

 

The weather that day was beautiful and so was the drive.

I decided to deploy my Chelegance MC-750 this time, just to shake things up a bit. If you know me, when I do little roves like this, I typically like to use different radios and/or antennas at each site.

I paired the MC-750 with my Yaesu FT-817ND. My reasoning for picking the ‘817 was because I could use the SO-239 connection on the back of the radio. The new cable assembly/feedline I was using had PL-259s on each end.

Speaking of the new assembly, at the Dayton Hamvention this year, I popped by the ABR Industries booth and Chuck gave me (full disclosure–at no cost to me) a new product to test in the field: a 20 foot PL-259 to PL-259 assembly made with their ABR240-UF cable and with 5 in-line ferrites. What makes this cable unique is that it sports a bright orange flexible webbed jacketing which makes it very easy to see on the ground.

They’ve been informally calling it their “POTA cable.” I immediately knew why this would appeal to POTA ops: one of my constant fears is that someone will unknowingly trip on my feedline while I’m in the middle of an activation. Black coax cable on the ground is very difficult to see (I’ve even tripped on my own lines)–this high visibility jacketing makes cable very conspicuous. Just check out the photos above. Continue reading Pairing the Yaesu FT-817ND and Chelegance MC-750 at South Mountains State Park →

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

POTA Field Report: Pairing the Yaesu FT-817 and a 40M EFHW at Table Rock!

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After a fun little activation of Lake James State Park (K-2723) on the morning of Monday, July 31, 2023, I decided to fit in at least one more POTA adventure on a mini rove.

The logical choice was Table Rock Fish Hatchery since it’s such a short drive from Lake James and I always enjoy activating that particular site.

The weather that morning was beautiful and so was the drive.

Table Rock Fish Hatchery (K-8012)

I pulled into the driveway of the picnic area and–no surprise here–I had the place to myself.

In fact, according to the POTA website, I’ve activated this site 12 times and I’ve never seen another soul in the picnic area save my canine friends, park staff, and one guy who was hunting muskrats in the creek. That’s about it. Never anyone actually hanging around the picnic area.

On the drive over, I hadn’t considered what antenna or radio to use–I had a few in the back of my car.

I thought about using my Elecraft KX1, but then realized I didn’t have an extra shielded audio cable to connect to my Anker Soundcore Mini speaker nor did I have my in-line digital audio recorder. Without those things, I wouldn’t be able to make a video of the activation.

My next choice was the Yaesu FT-817ND and, in fact, it would be ideal. I was looking forward to putting the ‘817 on the air again–it’d been a couple of months!

First, though, an antenna. I pulled out the 40 M End-Fed Half-Wave Steve (MW0SAW) made for me some time ago.

This antenna has been in heavy rotation lately because it’s been in my main radio backpack as I’ve been traveling around the region.

I deployed the EFHW in short order, then hooked it up to the ‘817. Continue reading POTA Field Report: Pairing the Yaesu FT-817 and a 40M EFHW at Table Rock! →