POTA – Page 3 – WB3GCK QRP Amateur Radio

POTA with the CWMouse Paddles

I did a POTA/WWFF activation this morning and used it as an opportunity to try out a new set of paddles. During a recent activation, I encountered a recurring problem with the cheap QU-21C paddles I keep in my backpack as a backup. As a result, the finicky paddles have lost out on their role as my backup.

Always a sucker for unusual paddles, I came across an interesting offering I couldn’t resist. I fired off an order for the CWMouse paddles and had them in my hot little hands two days later. Mike KN6FQM designed the CWMouse paddles, which are currently selling on Amazon for $39.00 (US).

The CWMouse paddles are made from 3D-printed parts and include sealed ball bearing races, two sealed microswitches, and an ⅛-inch stereo jack. One thing that drew me to these paddles was the small size: 74mm/2.9in L x 36mm/1.4in W x 28mm/1.1in H. They weigh a mere 1.5oz/45g, making them ideal for portable use. See the CWMouse website for the complete specifications.

The CWMouse paddles. For size reference, they are on a 3"x5" notepad. — The CWMouse paddles. For size reference, they are on a 3″x5″ notepad.

My destination this morning was Marsh Creek State Park (US-1380, KFF-1380). I usually operate near one of the boat launches, which can sometimes get crowded during the summer. Given that it was a weekday in September, there was plenty of room in the parking lot.

My rig today was my Elecraft KH1 into a 12-foot whip and homebrew loading coil. Starting out on 40M, I found lots of strong signals. I made a couple of quick park-to-park contacts before settling on a frequency and calling CQ. I quickly achieved the required 10 contacts and then some.

My KH1 fit nicely on the center console of my truck.

After 20 minutes, the activity on 40M tapered off, so I moved up to 20M. The action wasn’t as busy on 20M, but I made 11 contacts. One of those was with a station in California—I like when that happens. The 17M band produced three more before I called it quits. After a bit more than an hour, I had logged 32 contacts with six park-to-park contacts.

The CWMouse paddles performed flawlessly. Because of the microswitches, there are no adjustments for throw or tension. However, they felt great right out of the box. They have a nice, light touch, which is what I prefer.

One potential issue is the plastic used for the 3D printing. The website is very clear that the paddles should not be stored at temperatures above 100F. This could easily happen in a closed vehicle, so I’ll have to keep that in mind.

I used the “two-handed” technique with the paddles this morning, which is not my preferred way of operating. I’ll probably glue on some magnets, so I can attach the paddles to my clipboard.

Overall, however, I really like these paddles. It was a pleasure operating with them this morning.

72, Craig WB3GCK

Paddle Problems & POTA

My (far) better half and I spent the past weekend with family out in central Pennsylvania. During the weekend, I squeezed in a quick, early morning POTA activation. The great band conditions made for a fun activation, but paddle problems made it challenging at one point.

On Saturday morning, I was up before everyone else. After downing a cup of coffee, I took a short drive to a boat launch on the Susquehanna River to activate the Captain John Smith Chesapeake National Historic Trail (US-4567).

We drove out in my (far) better half’s car, so I used a simple antenna setup that produced decent results in the past. I used my Gabil GRA-7350TC on a small magnetic mount. Like the last time I used it on my (far) better half’s car, I easily adjusted it for a 1.3:1 SWR on 40M. I fed the coax through the passenger side window.

Gabil GRA-7350TC antenna on a magnetic mount

Inside the car, I set my Elecraft KH1 on the center console. I used my cheap QU-21C paddles attached to a clipboard with a homebrew magnetic mount I made for them.

The 40M band was hot with no trace of the QRM I experienced the last time I was there. It only took 14 minutes to log my first 10 contacts, the contacts came in steadily for the next 45 minutes.

I was cruising right along for about 30 minutes until my cheap paddles decided to start dropping “dits” here and there. Based on my crazy sending, I’m sure some folks thought I was experiencing some sort of medical emergency.

I frantically searched for my N6ARA Tiny Paddle that I always carry as a backup. Of course, they were nowhere to be found. I ended up using the stock KH1 paddles attached to the radio, with the KH1 on the center armrest. This setup was an ergonomic nightmare, with my elbow in the backseat area. Despite the awkward position I was in, I was able to finish up my activation.

My setup after my paddle problems started. On hindsight, I could have arranged things better to make my operating position a little less awkward.

After an hour, I had 39 contacts in my log. I was so occupied on 40M, I never got around to trying the higher bands. My log included 7 park-to-park contacts. One of those was with N4JAW (aka Ham on a Bike). It’s always fun working Jim down in Kentucky.

I also heard from my friend, Greg WA3GM. It had been a while since our last QSO, so it was great to hear him again.

The Gabil antenna and mag mount setup once again proved to be a great antenna when using my (far) better half’s car. With about 4.5 watts out on 40M, I worked stations up and down eastern U.S. and Canada and out to several mid-west states.

The QU-21C paddles, however, are a different story. This is the second time I have had issues with them. A squirt or two of contact cleaner will usually fix the problem—for a while, anyway. As they say: You buy cheap, you get cheap.

And, of course, I found my N6ARA paddles as I was packing up. Doh!

72, Craig WB3GCK

Going with Plan C

I set off this morning to activate Norristown Farm State Park (US-4363, KFF-4363) with a specific plan in mind. We’re talking about me, of course; so things don’t always go as planned. Today was a good example of that.

If a specific parking space was available, I planned to use a loaded whip on my truck and operate from a nearby park bench. Failing that, I figured I would set up at one of the picnic pavilions with a vertical of some sort. When I rolled in, however, the parking lot was crowded and people were setting up for an event under the pavilions. So, I was off to come up with a Plan C.

I drove back up the road a bit and pulled into a mostly empty trailhead parking lot. Off to one side, I found a secluded picnic table tucked away in a wooded area. About five minutes later, I was on the air.

My Elecraft KH1 with the antenna off in the distance

I sometimes think that my 50+ years of ham radio have been an ongoing quest to simplify my operations. My recently acquired KH1 is definitely a giant step in that direction. Everything I need (except for my earbuds) is attached to the radio.

Looking at the propagation forecast, I opted to forego the KH1’s whip antenna and go with something larger. So, I went with the 9:1 end-fed random wire from AD8HK Antenna Systems mounted on a cheap 19-foot telescopic pole. The ground was a little soft, so it took me a few tries with my homebrew ground mount to get the antenna reasonably vertical.

Even with a vertical just under 18 feet, the 40M band was productive today. After eight quick‌ contacts, things slowed down, and I changed bands. The 30M band produced one contact, while 20M was good for a half-dozen more. I went back down to 40M to pick up a few more before calling it quits. After about an hour, I ended up with 18 contacts, five of which were park-to-park.

My Elecraft KH1 at Norristown Farm State Park (US-4353, KFF-4363)

I have to say I’m really having fun with the KH1. It’s ideal for the short activations I tend to do. The battery life is nothing short of exceptional. This was the second activation since I last charged it, and I could probably do four or five more.

72, Craig WB3GCK

Getting Re-Acquainted with my KH1

A little over a month ago, the finals in my brand new Elecraft KH1 gave up the ghost during my second outing with it. After a trip back to the factory for some TLC from the Elecraft folks, the rig safely arrived back in Pennsylvania this week. I anxiously took the little rig out to the field this morning to get re-acquainted with it.

My destination today was Evansburg State Park (US-1351, KFF-1351). With an active geomagnetic field, I knew band conditions could make for a tough outing.

Along with my KH1, I used a new antenna I bought from AD8HK Antenna Systems and received just yesterday. This antenna features a 9:1 unun with 17’9.5″ radiator and a 8’10.5″ counterpoise wire. The unun assembly has an integrated wire winder, making for a neat, compact little antenna. I mounted the antenna on a 19-foot pole and ran 20 feet of RG-316 back to the KH1.

The AD8HK 9:1 Random Wire Antenna strapped to a telescoping pole

With the KH1 resting on my knee, I did a quick check of the bands from 40M through 15M. The KH1’s internal tuner easily found a decent match on all five bands. I went back to 40M and got started.

My newly-repaired Elecraft KH1 balanced on my knee

Despite the questionable band conditions, I logged seven contacts in about 15 minutes. I made another five contacts on 20M and 17M before calling it quits. The nice shady spot where I started out was quickly becoming a toaster oven.

I ended my brief outing with twelve contacts, including four park-to-park contacts. My KH1 has been out of commission for the past month, so I spent a good portion of my time refreshing my memory on the KH1’s menus and functions. The KH1 is thoughtfully laid out, so it all came back quickly.

Today wasn’t the best day for evaluating a new antenna, but the AD8HK EFRW did a decent job. Plus, it was great to have the KH1 back on the air. Both will see more use in the field in the future.

[Update 9/9/2025: During this activation, the KH1’s output power seemed low. As it turned out, the KH1 had been inadvertently set for low power. So, I was only running about two watts. Doh! I guess I need some more re-familiarization with this rig!]

72, Craig WB3GCK

End of Summer Activation

Wait… It’s September already? Where did the summer go? Anyway, I observed the (unofficial) end of summer with a POTA/WWFF activation—and it was a fun one.

I drove up to Norristown Farm State Park (US-4363, KFF-4363) for an early morning activation. I tend to do early activations to avoid the crowds. There was another reason to get out early this morning: NOAA was predicting some geomagnetic storms starting later in the day.

NOAA geomagnetic forecast for September 1-3

I parked my truck near a nice shady spot. For today’s activation, I used a 12-foot whip and my homebrew loading coil mounted on the truck. I ran a coax cable over to my table back under the trees. My rig today was my trusty Penntek TR-35 (5 watts, CW) with my Elecraft T1 tuner.

My equipmet set up at Norristown Farm State Park

Even though the bands would probably be rough later on, they were in great shape this morning. I logged 25 contacts on 40M, and most of the signals were very strong. After things slowed down on 40M, I made some more contacts on 30M, 20M, and 17M.

My Penntek TR-35 and Elecraft T1 at Norristown Farm State Park

After about an hour and 20 minutes, I pulled the plug with ‌43 contacts in the log, including 7 that were park-to-park. I worked a few of the stations on multiple bands:

Three bands: W9GTA
Two bands: KJ4R, K4NYX (P2P), and KI5GTR

One advantage of participating in both the Parks on the Air (POTA) and World-Wide Flora and Fauna (WWFF) parks programs is that you broaden the pool of hunters. Spots on the WWFF website often bring out the European hunters. That was the case today on 17M, with calls from DK9HN, F4ILH, and DM5WW. (Check out this website for more information on “dual activating.”)

So, that wraps up the summer of 2025. It was a fun morning; the bands were busy, and the weather was perfect.

I hope my U.S. and Canadian friends had a great Labor Day weekend.

72, Craig WB3GCK

Round Two with the AD8HK EFRW

A while back I purchased one of AD8HK’s end-fed random wire (EFRW) antennas. I tried it for the first time during my ill-fated Flight of the Bumblebees (FOBB) outing. With everything that went wrong that day, the AD8HK antenna certainly deserved a better evaluation—at least one where I wasn’t in a panic over problems with my newly acquired Elecraft KH1.

The AD8HK EFRW is a really slick little antenna. It consists of a 15-foot radiator and a 7.5-foot counterpoise wire. It has a neat 3-D printed winder for the wires that also incorporates a 4:1 unun and BNC connector. It’s compact and well-built. AD8HK Antenna Systems sells this antenna (and other offerings) through eBay.

During my infamous FOBB outing, I fed the antenna with 6 feet of RG-316 coax. It loaded up on 30M through 15M, but neither my KH1 nor my Elecraft T1 tuner could find a match on 40M. I’m not sure what the issue was, but I didn’t have much time to look into it.

Sometime later, tried the same length wires with one of my homebrew 4:1 ununs. That time I used 20 feet of RG-316, and it loaded up fine on all bands.

The AD8HK winder/unun. The gray thing is a Velcro strap I used to secure it to the pole. — The AD8HK winder/unun secured to the pole with a Velcro strap.

This morning I took the AD8HK EFRW over to Valley Forge National Historical Park (US-0761, KFF-0761) for an activation. I supported the antenna with a 20-foot pole and my homebrew ground mount. I fed the antenna with 20 feet of RG-316, and this time my T1 ATU easily found a match on 40M. It also loaded up fine on 30M through 17M.

A 15-foot radiator isn’t going to be a barn burner on 40M; however, this little antenna certainly held its own today. I easily logged 13 contacts on 40M before moving on to try other bands. When I wrapped up after a little over an hour, I had twenty contacts in the log, with four park-to-park contacts. I made contacts on all four bands covered by my Penntek TR-35 (40M-17M), and I was pleased to work W6LEN out in California on 20M.

My usual set up: Penntek TR-35 and Elecraft T1 ATU

After today, the AD8HK EFRW has definitely earned a spot in the KH1 kit I’m putting together. It’s easy to deploy and has a relatively small footprint.

Thanks to NU4F for the nice spot from Florida

Speaking of my KH1… I heard from Elecraft a few days ago. They replaced the FET in the final amplifier, and now the rig is on its way home. I can’t wait to get it back on the air.

72, Craig WB3GCK

More Antenna Testing in Valley Forge

In my last post, I talked about using a simple antenna comprising a 15-foot radiator, a 7.5-foot counterpoise, and a 4:1 unun. It worked well, but I found it a little touchy to tune on 40M. Today, I tried the same configuration, but with a slightly longer radiator and counterpoise.

I wanted to add a little length to the radiator, but limit it to 19 feet, so I could still use my lightweight 19.5-foot telescoping pole to support it. Looking at a table of random wire antenna lengths to avoid, it seemed like 18 feet might be a good choice for 40M through 15M, my primary bands of interest. Scaling the counterpoise wire proportionately, I went with a length of 9 feet.

Just as I was getting ready to cut a set of wires to try out, I stumbled on a video by Thomas K4SWL. In the video, he was using an antenna built by AD8HK that used a radiator length of 17’9” and a counterpoise length of 8’10.5”. I went with those dimensions, since they were very close to what I was considering and seemed to work with Thomas’s KH1.

On the Air

To try it out, I made a quick trip over to Valley Forge National Historical Park (US-0761, KFF-0761). Using the same 4:1 unun and coax as the last time, I made a quick check to see how my Elecraft T1 loaded up on the bands. The tuner quickly found a match on 40M, 30M, 20M. On 17M, however, it seemed to struggle. I went back to 40M and got started with my activation.

This wasn’t the best day to be doing this. The geomagnetic field was unsettled with a K index of 4 and the A index sitting at 47. Nevertheless, the callers showed up, although at a somewhat slower pace than usual.

After I had 14 contacts in the log, I decided to spend the rest of my limited time playing around with the antenna. When I went back and checked 17M, the T1 tuned it up without flinching. I also rearranged the counterpoise wire so it ran 180 degrees opposite of my coax. Checking the bands again, the T1 reliably matched 40M through 17M.

Convinced that the new wire lengths work, I went back to the 15-foot radiator and 7.5-foot counterpoise I used a few days earlier. This time, the T1 had no issues loading up on 40M. Go figure!

I really wanted to give the unun with the smaller ferrite core another shot. When I last tried it with the 15-foot & 7.5-foot wires, neither my KH1 nor my T1 could find a match on 40M. Unfortunately, I neglected to put it in my backpack before I left. I’ll have to save that for another time.

The Straight Key Century Club (SKCC) Weekend Sprintathon contest was going on this weekend, and I worked one SKCC station while tuning around the bands. This month, the WES theme was homebrew keys. In the spirit of the contest, I made the contact using a straight key I built a few years ago from junk box parts.

My homebrew straight key constructed from odds and ends in my junk box — My homebrew straight key constructed from odds and ends from my junk box

Conclusions

So it looks like both the 15’/7.5’ and 17’9”/8’10.5” configurations are usable with my homebrew 4:1 unun. Given a choice, though, I would probably stick with the longer wires.

One other thing is clear: short random wires can sometimes be finicky little critters. When in doubt, rearrange the counterpoise wire.

72, Craig WB3GCK

Antenna Testing at Ridley Creek

On Wednesday, August 7th, I set out to do some antenna experimentation. So, why not get in a POTA/WWFF activation at the same time? To kill those two birds with one stone, I drove down to Ridley Creek State Park (US-1414, KFF-1414). (Disclaimer: No birds were actually harmed during this activation.)

I saw some discussion on the Internet about an antenna configuration I found intriguing. It’s just a 15-foot radiator and a 7.5-foot counterpoise wire fed through a 4:1 unun. Folks claim they work on 40M through 15M—with a tuner, of course. I’m a sucker for simple, field-expedient antennas, so I gave it a try during the recent Flight of the Bumblebees contest.

With the unun I used, I had mixed results. I couldn’t get the antenna to load on 40M, but it seemed to do fine on 30M through 15M. I wanted to try the same configuration, but with a larger 4:1 unun I built a several years ago. After cutting another set of 15-foot and 7.5-foot wires, I was ready to go.

When I got to the park, I headed to a spot I had been using a lot lately. It’s off the beaten path and well away from the other park visitors. Using my homebrew ground mount, I set up the antenna on a lightweight 19-ft telescoping pole I bought years ago on eBay. I ran 20 feet of RG-316 coax over to my Penntek TR-35 and Elecraft T1 tuner.

My operating position at Ridley Creek State Park — My operating position

Before I started my activation, I gave the antenna a quick check. The antenna was an easy match on 30M through 17M, but it took two tries before the T1 found a good match on 40M.

Despite the slightly fussy tuning on 40M, the antenna didn’t do too badly on that band. I logged 12 contacts before the activity slowed down. I next tried 30M, but there were no takers. Moving up to 20M, I logged three more stations. Up on 17M, I worked one last station in Alabama. After an hour on the air, I had 16 stations in the log, including five park-to-park contacts.

Selfie at Ridley Creek State Park with my antenna in the background — Something in the woods behind me was not happy with my presence. Fortunately, I never came face-to-face with whatever it was.

I had better luck with this antenna configuration this time around. The unun I used for this outing uses a larger iron powder toroid (T130-2, as I recall) compared to the smaller ferrite core used in the other unun. Also, the longer run of coax I used this time was probably a contributing factor.

In any event, this configuration can definitely work. Granted, it’s a compromise antenna, but it’s super simple to deploy for casual operating in the field. Still, I think a slightly longer radiator would make for an easier match on 40M.

I have another configuration in mind that I plan to try soon.

72, Craig WB3GCK

Marsh Creek with the HB-1B

I normally have my old YouKits HB-1B nearby as a backup radio. In that role, it spends a fair amount of time tucked away under the backseat of my truck. I hadn’t used it in a few months, so I fired it up for a POTA/WWFF activation at Marsh Creek State Park (US-1380, KFF-1380).

I rolled into one of my favorite spots on the western shore of Marsh Creek Lake. Being a weekday, the boat launch parking lot wasn’t nearly as crowded as it gets on weekends during the summer months. It was very hazy this morning from the smoke from Canadian wildfires.

Besides the HB-1B, I used my Elecraft T1 tuner, a 17-foot whip, and my homebrew loading coil. I started out on 40M, and that band did not disappoint. It only took about 10 minutes to make my first 10 contacts. I stayed on 40M for about 30 minutes until the activity dwindled.

My HB-1B transceiver during a POTA/WWFF activation at Marsh Creek State Park (US-1380/KFF-1380) — My trusty HB-1B getting some air time

I set the loading coil tap for 20M, but things were much slower there. I logged just two contacts on 20M, but one of them was F1BLL in France. After that, I switched to 30M and picked up three final contacts.

After a little more than an hour, I had logged 28 contacts. Among those contacts, I had three (known) park-to-parks and one DX contact.

The HB-1B really doesn’t like my cell phone. To prevent getting noise in the receiver, I had to keep my phone several feet away. Despite its quirks, the HB-1B still got the job done.

72, Craig WB3GCK

I Went and Did It

I’m at the stage in my life when I should be “thinning the herd” when it comes to radios. So, what do I do? Instead of getting rid of some stuff, I fire off an order to Elecraft for a KH1 Edgewood package. I need another QRP rig like a hole in the head, but after considering it for the past year, I gave in and ordered one.

I have a couple of use cases in mind for the KH1. This rig should be ideal for bicycle-portable outings and hopefully get me out on some hiking trails—within the limits of my arthritic knee, of course.

I have to admit that after I placed the rig in my online shopping cart, it took me several minutes to convince myself to press the “Submit” button. Less than 24 hours later, I received a shipping notice from Elecraft.

While waiting for the KH1 to arrive, I watched a bunch of YouTube videosread serveral blogs, and downloaded the manual. With those resources, I was thoroughly prepared when the Post Office delivered it.

What I wasn’t prepared for was exactly how tiny this thing is. Even with the research I had done, I didn’t fully appreciate its diminutive size until I had it in my hand. It’s amazing how much functionality Elecraft was able to cram into this little rig.

WB3GCK's Elecraft KH1 — My new rig at US-0761/KFF-0761

Some Initial Impressions

Menus. I prefer radios that are simple to operate without a bunch of complicated menus. That’s one reason I love my Penntek TR-35 so much. There are a lot of menu options provided through the four pushbuttons on the KH1’s front panel. Elecraft, however, has come up with a scheme that makes navigating the menus very intuitive.

Paddles. The Elecraft KHPD1 paddles included with the Edgewood package will take some getting used to. I typically prefer paddles with a light touch, like my trusty Palm Mini paddles. I played around with the Elecraft paddles with the rig in the “Test” mode. It didn’t take too long before I could send coherent code with them. We’ll see how I do in the field. Fortunately, there are several after-market paddles for the KH1 if I decide to go that route.

Overall Ergonomics. It’s clear that a lot of thought has gone into the clever design of the KH1. Everything from the logging tray to the self-contained pen is nothing short of genius. I’ve never used a handheld HF rig before, so using the logging tray will take some getting used to.

Maiden Outing

The day after I received the KH1, my (far) better half suggested I go out and give the new radio a try. Of course, I took her suggestion, but I had some reservations. There was some geomagnetic craziness going on, plus the higher bands could be tough early in the morning. Nevertheless, I packed up the KH1 and headed off to Valley Forge National Historical Park (US-0761, KFF-0761).

I started off using the KH1 handheld with the telescopic whip while sitting on top of a picnic table. Using the stock counterpoise wire on the ground, the KH1’s internal ATU easily found a 1:1 match. The bands were really rough, but I made seven contacts that way. It took the better part of an hour to make those contacts, however. Six were on 20M and one was on 17M.

WB3GCK with the Elecraft KH1 at US-0761/KFF-0761 — A Boy and His Toy

I wanted to try the lower bands—and my rear end was sore from sitting on the table—so I walked back to the parking lot and set up a 12-foot loaded whip on my truck. Sitting on a camp chair next to the truck, I bounced around the bands. I ended up with one contact on 40M and three more on 20M. Out of my 11 contacts, four were park-to-park.

Using the logging tray was a challenge. Writing while holding the rig in my hand was tough. Sitting in a chair with the radio resting on my knee was a little easier. My handwriting was pretty sloppy but still readable.

With enough contacts for the activation, I declared victory and went home.

Wrap-Up

I’m definitely not an early adopter with new gear. The KH1 is no exception. Elecraft announced the KH1 in the fall of 2023. Since that time, they have made improvements to the paddle and added new features via the firmware. Plus, by waiting to buy one, I got to learn from the users who jumped on the KH1 bandwagon early on. Thanks to the legions of YouTubers and bloggers for sharing their experiences with this rig. You made it easy for me to get up and running with it.

After the intial outing, I am thoroughly impressed with the KH1. With earbuds, the receiver sounds great, and the rig was super easy to use.

This little rig is going to see a lot of future use in the field.

72, Craig WB3GCK