This was supposed to be a post about how I made a bazillion POTA/WWFF contacts in an hour. Yeah, well, that didn’t happen. However, I had some interesting visitors stop during my (attempted) activation.
I made a trip over to French Creek State Park (US-1355, KFF-1355) for a short activation and a little antenna experimentation. To make sure I wouldn’t be in anyone’s way, I set up at a picnic table well away from the parking lot.
My KH1 and CWMouse paddles
My antenna today was a vertical wire just under 18 feet fed through a homebrew 9:1 unun with a counterpoise wire just under 9 feet. I ran 20 feet of RG-316 coax over to my Elecraft KH1 on the picnic table. I had used this antenna configuration with my Penntek TR-35 and T1 ATU a few times in the past. While it worked well with that rig, I wanted to see how it would work with the KH1’s ATU.
My antenna with Hopewell Lake in the background.
My first visitors showed up just as I was getting started. It was about six Canada geese who wandered over about 20 feet from my antenna. One of them had a bad attitude and hissed at me when I went over to check the antenna. I calmly told him to buzz off; I was here first. They wisely moved on, de-escalating the situation. I’m pleased to report that no humans or geese were harmed during this brief but intense standoff.
Radio-wise, I wasn’t having much luck. QSOs were few and far between. On paper, the band conditions didn’t look too bad, so I’m not sure what my issue was.
My third contact was an ear-shattering call from my friend N3CU. Ken was also in the park somewhere, so that accounted for his loud signal. I told him where I was, and he came over to visit. I last ran into Ken in French Creek back in January, so it was great catching up with him. Eventually, Ken headed off to continue his activation.
Ken N3CU (left) and me at French Creek State Park (Selfie courtesy of N3CU)
After I got back on the air, I heard a noise in the woods behind me. It was a hiker coming off a trail. He was curious about my antenna, so I gave him my Amateur Radio and Parks on the Air “elevator speech.” After a brief chat, he headed off toward the lake.
After I had six 20M contacts in my log, I moved down to 30M. Just then, another fellow came up to see what I was doing. I was wearing my Navy ball cap, so that prompted five or ten minutes’ worth of “sea stories.”
While we were swapping tall tales, I had the KH1 calling CQ with one of my earbuds in my ear. I heard N3CU calling, so I told my visitor I needed to answer a call. He wished me good luck and headed off towards the parking lot. I needed to get back home, so I shut down and packed up after finishing up with Ken.
So, after an hour and a half, I only had seven contacts in my log. This was my first busted activation in quite some time, but I don’t consider it a failure. I was out in a beautiful park with excellent weather, and I got to catch up with a friend and chat with some other random visitors.
I’m sure I’ll have better luck on the radio next time.
I carved some time out of the chaos that is my life lately for some much-needed “radio therapy”. I drove over to Ridley Creek State Park (US-1414, KFF-1414) yesterday morning to take advantage of some great spring-like weather. What I envisioned as an easy in and out POTA/WWFF activation turned out to be one of the more challenging activations I’ve done in a while.
I set up at a picnic table under a large pavilion. Since it was a weekday, I had the pavilion to myself—but not for long. More on that in a bit. To keep things simple, I used my Elecraft KH1 with the whip antenna on a Tufteln right-angle adapter. I ran my counterpoise wire out into the grass. This setup hasn’t failed me yet, so I was feeling confident. For keying, I used my trusty CWMouse paddles.
My setup at Ridley Creek State Park (US-1414, KFF-1414)
It was really slowgoing today. Although I was making some contacts, spots on the Reverse Beacon Network (RBN) were few and far between. That’s not a good sign. Was it band conditions or my location? I don’t know, but I pressed on with dogged determination.
Not long after I got started, a park maintenance worker started mowing the grass in the picnic area. The bands weren’t all that great, and now I had to contend with some loud audio interference. They eventually finished up and moved to another area away from where I was sitting.
After 30 minutes, the 20M band had only produced seven contacts. One of those was 2,400 miles away in California, so my signal was getting out somewhere. Searching and pouncing produced two park-to-park contacts.
Before I knew it, I was sharing the pavilion with a group of about 40 exuberant kids. Apparently, they were on a school trip and taking a break from hiking for lunch. It was nice to see them enjoying the outdoors, but it also meant more audio interference for me. Eventually, some teachers rounded up the kids, and they all headed back down the trail. Once again the surrounding area was quiet, but I still wasn’t making any contacts.
I was stuck at nine contacts for what seemed like an eternity. I checked 17M and 15M a couple of times to no avail. The 20M band was the only one producing any contacts for me, and that wasn’t all that great.
After about an hour and a half, my stubborn persistence was giving way to frustration and resignation. I was about 15 seconds from shutting down and packing up when the elusive tenth contact came in. That contact came in the form of a very loud call from KB5HPM in Mississippi that had me reaching for the KH1’s volume knob. After logging that last contact, I packed up and headed home.
I ended my 40th activation at this park with the bare minimum 10 contacts, but I was okay with that. I’m not sure if this was the hardest I’ve had to work for 10 contacts, but it’s certainly right up there.
This is one of those antenna projects that started with: “I wonder if…” Designed with my Elecraft KH1 in mind, it covers the 20M, 17M, and 15M with the use of an tuner—similar to how the KH1’s whip antenna operates. It wasn’t something I had a burning need for, but it turned out to be pretty effective.
Concept
For many of my recent activations, I’ve been using my Elecraft KH1 with my base-loaded 12-foot whip. While I built the loading coil for 40M through 17M, I found that the KH1’s internal tuner easily matched the 12-foot whip on 17M and 15M, with the coil bypassed. A 12-foot radiator is resonant somewhere around 19.5 MHz, so it falls in between the 17M and 15M bands. Even though the 12-foot whip is a compromise, I was regularly making DX contacts on those two bands running five watts or less.
That got me thinking about building a more portable antenna for 20M through 15M using a 12-foot radiator. What I came up with was a simple 12-foot wire antenna that uses a loading coil for 20M and just the 12-foot wire for 17M and 15M.
When I thought about it, what I was building was conceptually similar to the Elecraft AX1 antenna and the KH1’s whip antenna. These antennas are close to resonance on 20M and resonant somewhere in between 17M and 15M. My antenna would operate the same way, except it would be almost 8 feet longer. I’ve always had good luck with the AX1 and the KH1’s whip antenna, so I figured my proposed antenna should work even better.
Along with the electrical properties, I wanted to make the antenna small and lightweight, using a #26 AWG radiator along with two 13-foot counterpoise wires. Also, I wanted to use—as much as possible—parts I already had in my junk box.
Parts List
I selected most of the parts based on availability in my junk box. They might not be the optimal choices, but here’s what I used:
T106-2 iron powder toroid
#22 AWG enameled wire (approx. 35 inches)
SPST slide switch. I actually adapted a DPDT slide switch, since I already had a bag of them.
#26 AWG wire (12 ft for radiator)
#26 AWG wire (2x13ft for counterpoise wires)
2mm banana plugs & jacks (2 sets for connecting the counterpoise wires)
(2) ring terminals
BNC female jack
(2) 4-40 x ¾-inch bolts plus some washers and nuts for the antenna and counterpoise connections. I used a couple of knurled nuts I had on hand.
Plastic box. I had one that measures about 2.5 x 1.75 x 1 inches.
Construction:
When I first thought about building this thing, I originally envisioned a more field-friendly form factor with built-in winders for the antenna and counterpoise wires. Since I constrained myself to using parts I already had (and I don’t own a 3-D printer), I used a plastic box I bought years ago but never used.
The construction was pretty simple; it’s just a toroid, a switch, and some connectors in a box. They say a picture is worth a thousand words, so have a look at the accompanying pictures to see how I built it.
Inside the matchbox
I used some online calculators to determine the loading inductance needed for 20M. Assuming I would need to tweak the number of turns, I started with one turn more than I had estimated. It’s easier to remove turns than to add turns—don’t ask me how I know this.
I used some foam mounting tape to hold the toroid in place. For good measure, I also wedged in a piece of Styrofoam between the toroid and the lid. That adds some assurance that the toroid won’t come loose in the field. The trickiest part was cutting a square opening for the slide switch. That took some careful work with a nibbler tool and a file to get it done without destroying the box.
You could use a tree branch to support this antenna, but I like to keep my field setups self-contained. I found a cheap telescopic pole on eBay that measures about 12’ 3” fully extended, so I went with that.
Typical picnic table setup with the 12-ft vertical and Elecraft KH1
I envisioned using this antenna primarily for “picnic table-portable” operation, running a short length of coax to the radio. Using a piece of PVC pipe and a PVC elbow fitting, I built a simple mount for clamping to a table. As luck would have it, the base of the pole fits perfectly inside a ¾-inch PVC pipe. I just use a C-clamp to fasten the elbow to the table and slide the pole into the pipe. When I built the mount, I inserted a small screw partway up the pipe to give the pole a few more inches of height. A six-foot length of RG316 is more than enough to reach the radio at the other end of the table.
Matchbox attached to the PVC pipe picnic table mount
Testing in the Field
I don’t have a good place for antenna experimentation where I live, so it took several trips to the field to tweak the inductor. On each trip, I took readings with an antenna analyzer, made any necessary adjustments to the loading coil when I got back home, and repeated the process on the next outing. That was a tedious process, which was spread out over a few months because of winter weather.
Once I set the antenna up in the field, I found I needed far fewer turns than I originally estimated. Initially, the antenna was resonating well below the 20M band, so I removed a turn at a time. Since I was going to need to use an ATU for 17M and 15M anyway, I didn’t get too fussy about getting it exactly resonant on 20M. However, I eventually got it resonating in the 20M band, with an SWR under 1.5:1 across the band.
The good news was that, even though I hadn’t finished tweaking the coil, the KH1 easily found a match. I had five successful activations during those testing sessions, typically running 3.5 to 4 watts. I consistently worked stations in Europe on all three bands, along with some U.S. stations on the west coast. On one outing, I worked W6LEN in California on all three bands from a park here in southeastern Pennsylvania. During my final testing session with the antenna, I had a 20-minute two-way QRP QSO with DL4ISX on 15M (CW). I declared the project completed at that point.
Below is a schematic showing the final configuration:
Wrap-up
So, there you have it. No revolutionary technical breakthrough here, just a fun little project that has been even more fun to use. I envision many more picnic-table-portable activations with it.
I was out and about on a rainy and foggy Friday morning. Since I was in the vicinity, I made a stop in Ridley Creek State Park (US-1414, KFF-1414) for a quick activation. I completed the activation successfully, despite some self-inflicted problems.
I pulled into a convenient parking spot. Not surprisingly, the picnic area I was in was completely deserted. Since the weather was miserable, I planned to use my Elecraft KH1 in the truck with my trusty 12-foot base-loaded whip on the back.
As I was setting up the antenna, I noticed my first issue. The spot I had hastily chosen was under a tree—a large, rain-drenched one. Rookie error! Fortunately, my 12-foot stainless steel whip went up in between the branches and didn’t appear to be touching any of them. (Note to self: Look up next time!)
Rainy and foggy morning in Ridley Creek State Park (US-1414, KFF-1414)
I finished up with the antenna and got the KH1 set up for 40M. Normally, with this antenna, the KH1 easily finds a good match on the first try. Not this time. It would find a good match (1.5:1 or better), but the SWR would occasionally jump full scale. I had to hit the KH1’s ATU button to re-tune frequently, sometimes mid-QSO. Thinking it was the wind blowing the whip into the wet branches above, I backed the truck up a foot or two to clear the tree. That didn’t help.
After stumbling through seven contacts on 40M, I went out to change the antenna tap for 20M. As I did that, I realized what the problem was. On my last activation, I was using the KH1’s whip antenna, and I neglected to set the switch for using the BNC connector. The BNC jack is always connected, but the “20M” setting puts in some additional inductance for the whip. It appears extra loading was the source of my issues on 40M. Once I corrected my mistake, things continued normally on 20M and 17M.
Despite my struggles, I completed my brief activation with 22 contacts in my log. It was good to put a few DX stations in the log:
20M: CU3DI, F1BLL 17M: OE3KAB
All’s well that ends well, I suppose. My switch error got my activation off to a shakey start, but I got it done. Having already experienced blown finals with this rig, I’m usually mindful of the antenna switch setting. Still, I used my trusty label maker to put a reminder right on the radio.
I’ve been in a bit of a ham radio slump lately. It had been nearly three weeks since my last park activation, and I’ve only had a few QSOs from the home station. Our temperatures have finally gotten above freezing this week, so I headed out to Evansburg State Park (US-1351, KFF-1351) for a long-overdue activation this morning.
With the slightly warmer temperatures this week, the snow and ice from last month’s storm are finally melting (a little). Even though the temperatures are above freezing, we still have what I refer to as “refrigerator weather.” Still, I braved the chilly weather and operated outdoors today.
The Evansburg State Park entrance sign with the dirty remnants of last month’s snow
I was the only person in the park this morning, so I had a large picnic pavilion to myself. Of course, there usually aren’t many picnics on a weekday morning in February. I went with my Elecraft KH1 and whip antenna with a right-angle adapter from Tufteln. I ran my counterpoise wire out across the snow.
Operating at Evansburg State Park (US-1351, KFF-1351)
I started out on 40M with the Elecraft AXE1 extension coil. As always, the little whip antenna amazed me with how well it was getting out. I logged eight contacts in the first 10 minutes before the action slowed. After logging 11 contacts, I moved up to 20M. The action was a little slower there, but I still managed seven more contacts.
The view from my operating position this morning
My coffee mug was nearly empty, so I called it quits after an hour on the air. I finished up with 18 contacts in my log. Not bad for a 45-inch antenna and “fair” band conditions, I suppose.
It was fun getting back out in a park again. Hopefully, I’ll get in another activation or two before the next round of snow shows up.
I’ve been very happy with the soft case that came with my Elecraft KH1 Edgewood Package. It has room enough for the KH1 and most of the accessories I typically use with it. Although I’ve been very careful with the KH1, I somehow damaged the stock Elecraft paddles that came with it. I’m not sure how I managed to do that, but that prompted me to start looking into a hard case for transporting this expensive little radio.
[Note: This post is not sponsored, and there are no affiliate links.]
Fortunately, others have gone before me in this quest, so there are a variety of boxes that others have tried. KR8L wrote a blog post about using a Pelican 1040 case for his KH1. K4SWL had a blog post and an excellent video showing a bunch of hard cases suitable for the KH1. Somewhere online I saw mention of the Apache 550 as a less expensive option from Harbor Freight. Commercially, Tufteln sells a Pelican M40 case modified to fit the KH1 and its whip antenna.
Now that I had a mind-boggling array of options to consider, it was time for the next phase of my project: over-thinking and over-analyzing.
While most KH1 users carry the bare minimum of items to get on the air. I, however, tend to over-pack. With the original soft case, I could carry everything I needed for pedestrian-mobile, picnic-table-portable, and stationary-mobile operations. Being a soft case, it has a little “give” to it when I squeeze in some extra items. So, for my purposes, I wanted a box at least large enough to hold everything I carried in the soft case.
After much agonizing, I settled on the Pelican M50. With exterior dimensions of 8.10 x 5.50 x 2.90 inches, it’s somewhat larger than others use. However, it easily holds everything I carried in the soft case—and then some.
Pelican M50 MicroCase with my KH1 and accessories (see text for contents)
I placed the KH1 on top of the counterpoise wires for some cushioning, but the KH1 still flopped around a bit. I found that placing a 3×5 inch notepad under the KH1 kept it in place with the lid closed. So, the notepad and a full-size mechanical pencil are now part of the kit. No problem, since they will get used for picnic table operations.
Pelican M50 MicroCase. The counterpoise wires and a notepad are under the KH1.
Although I already have a bunch of stuff packed in there, I’m still thinking about adding a random wire antenna and maybe some throw line. I might just keep that stuff in my backpack, though. We’ll see.
So that’s what I wound up with. In typical fashion, I probably packed more than I should have, but the overall weight of my backpack hasn’t increased very much. Plus, I like to think I’m minimizing the possibility of forgetting something in the field.
I haven’t had much time for ham radio this week, but I squeezed in a quick activation this morning. Not only did I get in some much-needed radio time, but I finally achieved a POTA Kilo award at one of my favorite local parks.
The park in question is Norristown Farm State Park (US-4363, KFF-4363). According to the POTA website, I needed 36 more QSOs for a Kilo award at this park, so I was hoping the bands would be in good enough shape to get there. I set up my Elecraft KH1 and 12-foot base-loaded whip and got busy.
On the air, there was some fading, but overall the bands weren’t too bad. The 40M band was the most productive for me, with 20M a close second. I made some contacts on 17M and 15M, but they were few and far between. I was amazed at the number of hunters out there early on a Friday morning. After an hour and 15 minutes, I had made 40 contacts—enough for the Kilo award with a few to spare.
As I mentioned, I didn’t make too many contacts on 17M and 15M, but I did work some DX. On 17M, I worked Germany, France, and Denmark. Stations in Mexico and France hunted me on 15M. While not DX, a special shout-out goes to N4NR in Florida who worked me on 20M, 17M, and 15M this morning.
While making a thousand contacts at a park isn’t a big deal for most activators, I was happy to finally get there after 32 activations at this park. I’m close to a Kilo award at another of my local parks, so I’m hoping to finish that one off in the next week or so.
Instead of heading out to the stores looking for bargains, I headed up to French Creek State Park (US-1355, KFF-1355) looking for POTA and WWFF hunters. It turned out to be a productive morning—and I didn’t have to spend any money.
I rolled into a parking lot near Hopewell Lake and started setting up. Old Man Winter is starting to rear his head here in southeastern Pennsylvania, with an air temperature about 32°F (0°C) with a wind chill around 25°F (-3.9°C). I forgot to bring my gloves, so my fingers were becoming numb by the time I got my 12-foot base-loaded whip set up on the truck. I used my Elecraft KH1 up in the truck’s cab.
Hopewell Lake in French Creek State Park
My handy band conditions app showed an active geomagnetic field with “FAIR” conditions for 40M through 15M, my bands of interest. Even under these conditions, however, there are usually contacts to be made.
Despite the predicted band conditions, the band weren’t all that bad.
There was plenty of activity on 40M. It only took about nine minutes to log my first 10 contacts. After logging 18 contacts, I moved up to check 20M, 17M, and 15M. These higher bands weren’t too shabby either, producing 35 contacts across these three bands. I had DX contacts on each of those bands, too. The KH1’s display showed it was putting out about 3.5 watts on 15M, but that was enough to be heard in Europe.
My KH1 showing about 3.5 watts on 15M
Altogether, I had 53 contacts, including the following DX contacts:
20M: F6EOC
17M: DF2PI
15M: DL1SWB, F6DHD, IK3HMB, IK1LBL, DK1RS, EA7ZC
I also had a nice 2xQRP QSO with N8NK on 20M. He was running 1 watt from Michigan and sounded great here in Pennsylvania.
I had to pull the plug after about two hours. I would have stayed longer, but I had an errand I needed to take care of. The windchill temperature was still below freezing, so I hastily took the antenna down and headed on to my next stop.
I headed down to Ridley Creek State Park (US-1414, KFF-1414) this morning for a pre-Thanksgiving POTA/WWFF activation. While I was there, I wanted to field test a couple of paddles, one new and one I slightly modified.
I mentioned in a previous post (or two) that I somehow damaged the paddles that came with my Elecraft KH1. In searching for an alternative, I came across the KH1 Pressure Paddles from K6ARK. The kits were selling for a mere $22 on Amazon, so I fired off an order.
K6ARK Pressure Paddles
I’m not as good at building kits with small parts as I used to be. My close-up vision hasn’t gotten any better with age. However, with the aid of my lighted magnifying glass, I assembled the kit in less than 30 minutes with no major issues. The only issue I ran into was the 3-D printed cover didn’t fit against the KH1 too well and needed a little sanding. Once I took care of that, the paddles worked great. Using pressure-sensitive paddles feels a little different at first, but I quickly adapted.
The other thing I did was glue two more magnets onto the bottom of my CWMouse paddles. The four I glued on initially weren’t quite enough to keep the paddles from moving when attached to my clipboard. Two additional magnets seemed to do the trick.
The magnets on my CWMouse paddles. I recently added the two towards the middle.
When I rolled into my usual spot in the park, the place was deserted. I wasn’t too surprised, since it was a weekday and drizzling to boot. My original plan was to operate the KH1 handheld to give the K6ARK paddles a good workout. Given the lousy weather, I abandoned that plan and set up in the truck. I used my trusty 12-foot loaded vertical on the back of the truck.
KH1with the K6ARK Pressure Paddles attached
I started off trying to use the K6ARK paddles with the KH1 on the center console. After two contacts, I decided that wasn’t the most comfortable way to operate. The pressure paddles worked fine, though. I switched over to the CWMouse paddles attached to my clipboard, and the magnets held nicely. It helps that the CWMouse paddles have a light touch, so I’m not slamming them side to side.
On the air, the bands were as mediocre as the weather this morning. According to my band conditions app, we were experiencing an unsettled geomagnetic field. Starting out on 40M, it took longer than usual to make my first ten contacts. After I had 15 in the log, I switched to 20M and picked up a few more. I spent the rest of my time on 17M and 15M. As predicted, the band conditions up there were fair at best. I worked two domestic stations on 17M, and stations in Germany and Texas on 15M.
My loaded whip at Ridley Creek State Park (US-1414, KFF-1414)
I was getting ready to call it quits, but I wanted to adjust the KH1’s real-time clock before shutting down. It had gained a minute or two over the past couple of months, so it just needed a tweak. As I navigated through the menus to set the clock, I heard a very loud IK1LBL calling me. I quickly exited out of the menu and completed the contact. After that, I set the KH1’s clock and packed everything up.
As activations go, this one was nothing special. However, my new KH1 paddles and my modified CWMouse paddles were a rousing success.
And finally, I’ll leave you to ponder this curious AI-generated image of a turkey operating a radio. It appears the turkey might be keying with his left foot (QLF?).
I have always spent a fair amount of my HF operating time on the 40M and 30M bands, with a little time on 20M. Lately, though, I’ve been making a point of spending more operating time on 20M through 15M (or at least as high as the rig I’m using will go). To that end, I had a little fun on 15M with my KH1 this morning.
I stopped by Norristown Farm State Park (US-4363, KFF-4363) this morning. I broke out my Elecraft KH1, which hadn’t seen much action over the past few weeks. We were under a wind advisory, so I operated from the truck and used my truck-mounted 12-foot loaded whip.
As I was setting up the KH1, I ran into an issue while removing the KH1 paddles from the radio. During an activation about a month ago, the spring between the paddles popped off. I found the spring and re-installed it when I got home. The paddles must have gotten damaged somehow, because the left paddle wasn’t moving as smoothly as it used to. Today, the spring came off the paddles again, but this time it was nowhere to be found. I wasn’t planning to use them today, anyway. For those times when I use the KH1 handheld, I have the N6ARA Tiny Paddles with a KH1 adapter. I also have a K6ARK Pressure Paddle kit on order. But I digress…
Anyway, I started on 40M, because here on the east coast it’s a quick way to make the first 10 contacts for the activation. That’s especially the case early in the morning. There was a lot of atmospheric noise on 40M this morning, but it didn’t take long to log 17 contacts. The 20M band was good for another nine contacts, and 17M produced three contacts.
Being inherently lazy, I left the loading coil tap set for 17M and tried to see if the KH1 would tune it up on 15M. The KH1 easily found a 1.2:1 match. That wasn’t surprising, since the 12 foot whip is only about 11 inches longer than a quarter-wave on 15M, and I only use one turn of the loading coil at the 17M setting.
After making a couple of 15M contacts with the antenna adjusted for 17M, I bypassed the coil completely. Again, the KH1 loaded it right up. I could have shortened the whip by 11 inches to make it a resonant quarter wave on 15M, but I didn’t have my antenna analyzer with me. Honestly, I don’t think it would have made a significant improvement in performance, anyway. Overall, I made 13 contacts on 15M, which included a handful of DX stations.
After 90 minutes on the air, I had made 42 contacts, including nine park-to-park contacts. The DX contacts today included:
20M: Dominican Republic
17M: Ukraine
15M: Czech Republic, Latvia, Spain, Italy (2), England
I was happy with how the 12-foot whip and KH1 performed on 15M. I’ll definitely be spending more time on 15M (and above) in the future.
I also have an idea for an antenna I might try to build. More on that later, if it works.
WB3GCK QRP Amateur Radio 