Category Archives: Field Reports

Pedestrian Mobile POTA Hunting: Pairing the KH1 and N6ARA’s Tiny Paddle Plug

On Sunday, March 3, 2024, I had a couple of errands to run in downtown Asheville and also had to pick up my daughter.

I ended up having about 40 minutes to kill and, since I had my Elecraft KH1 field kit packed in my EDC bag, I thought it might be fun to fit in a little radio time.

Since I was downtown, the only viable POTA site to hit would be the Thomas Wolfe Memorial–you might recall my activation there last year–but technically, the park was closed. It is an urban park in the middle of Asheville, and there are no gates to keep people from walking across the grounds, but still, I’d feel better activating with permission from the staff first. (I’m pretty sure they’ll grant that permission, by the way.)

Instead of activating, I decided to do a little POTA hunting.

I parked at the spot where I planned to meet my daughter and grabbed my KH1 field kit.

Upon opening it up, I remembered that I had put N6ARA’s new KH1 TinyPaddle Plug Adapter in the M40 case!

My good friend, Ara (N6ARA), designed a small 3D-printed adapter that allows his TinyPaddle Plug to fit the KH1 securely. He sent me (free of charge) this new key/adapter to evaluate.

The adapter is a super simple design that works with the TinyPaddle Plug (not the TinyPaddle Jack).

I hadn’t used this new adapter in the field yet–I only very briefly tested it at the QTH a couple of days prior.

I mentioned last year, shortly after the KH1 was introduced, that I expected a number of 3rd party paddles to start appearing on the market. Since the interface with the KH1 is a standard 3.5mm plug, it does open the door to 3D-printed designs and experimentation. Admittedly, it’s a small space to fit in a paddle, but it’s doable.

I believe N6ARA was actually the first non-Elecraft paddle I used on my KH1 because his TinyPaddle Plug will fit it natively. That said, the new KH1 adapter makes it a proper secure fit–the way it should be!

Side Note: The OEM Elecraft KH1 paddles (the KHPD1s) are now in Revision 2, and all KH1 owners (who received the original paddles) will get version 2 paddles eventually via Elecraft for free.

The original KH1 paddles have a green circuit board.

I haven’t received my Rev 2 paddles yet, but I know I will before long. It’s my understanding that the Rev 2 paddles have a much better feel, and keying is more accurate.

Still…it’s brilliant that Elecraft used a standard jack so that we hams can design our own paddles if we like.

The TinyPaddle Plug

Ara’s TinyPaddle design is super simple, and while he originally designed the TinyPaddle to be a back-up option, I know a number of hams who use the TinyPaddle as their main field key.

If you’d like to hear more about the TinyPaddle and Ara (N6ARA), I’d encourage you to listen to this recent episode of the Ham Radio Workbench podcast when he was our guest. He’s such a brilliant fellow.

Park Lot Pedestrian Mobile

Again, I can’t stress how cool it is to have a radio that allows you the flexibility to hit the air pretty much anywhere, anytime.

The KH1 is so quick to deploy, low-impact, and low-profile.

It’s as conspicuous as holding a transistor radio with a telescoping whip. So far (it’s still early days, let’s be honest here) no one has seen me with the KH1 and asked me if I’m a spy. I can’t count the number of times I’ve been asked this over the years of POTA activating!

POTA Hunting vs. Activating

Even though both activities–hunting and activating–are a part of the same program, they are very different animals. Continue reading Pedestrian Mobile POTA Hunting: Pairing the KH1 and N6ARA’s Tiny Paddle Plug

Bird Dogging POTA in Augusta, Georgia

As I had no appointments scheduled for Monday, February 26 during the day, I planned a POTA outing in the Augusta, Georgia area which is a two-hour drive from my home QTH. The destination: Spirit Creek Educational State Forest (K-4654).

Source: Google Maps

Apple Maps routed me west on I-16 and then northwest through Statesboro, home of Georgia Southern University (the Eagle Nation). On the drive, I passed acres and acres of farmland, some of it for cotton. I noticed a few of the fields had a reddish tinge and were full of a plant I had not seen before. I did some detective work once back home and  think the plant is red sorrel, a member of the buckwheat family that is native to Europe. I am guessing the red sorrel is a cover for the field between crops.

Source: https://1000logos.net/georgia-southern-eagles-logo/

Red sorrel?

Apple Maps also routed me through Waynesboro which is the “Bird Dog Capital of the World.” The city hosts the largest field trials in the world. Field trials are a competition to evaluate a dog’s ability to find and point coveys of quail. Waynesboro is bird dog crazy; even the town’s water tower is decorated with a bird dog. Wow – the interesting stuff I learn about my home state!

Source: http://thetruecitizen.demo.our-hometown.com/wp-content/uploads/images/2006-08-23/008p1_xlg.jpg

However, we aren’t here to discuss bird dogs but POTA. After sitting longer than I usually drive to a POTA destination, I arrived at my destination. The 570-acre property is surrounded by private land with the entrance tucked between two residences. The road through the forest appears decently maintained and is easier on which to drive than my previous forays into such properties.

Not far into the forest was an open area for parking and a kiosk with hunting information. Upon checking the kiosk, I read the only thing in season right now is small game and knew I’d be unlikely to come across anyone on a Monday morning hunting. However, to be on the safer side of things, I set up in the parking area rather than somewhere else in the forest.

Source: https://georgiawildlife.com/spirit-creek-forest-wma

Speaking of hunting, Bob WK2Y who lives in Atlanta, reached out to me after my Hiltonia WMA article. He emphasized the need for ops to wear blaze orange in such places whether in hunting season or not because of hunting violations which are more frequent than I realized. (I plan on addressing that topic in a future WMA article.) Because of this, I now always keep a blaze orange vest in my kit for Daisy and me. I’ve ordered a blaze orange hat as well as purchased hot pink magnetic decals for my car. (The website said “hot pink” though I think “bright pink” is more like it but close enough.)

In the parking area was a pine tree perfect for my EFRW. Continue reading Bird Dogging POTA in Augusta, Georgia

Let’s Give it a Go: Pairing the Elecraft AX1 and Emtech ZM-2 Manual ATU

Last month, I received a comment and question from Gordon (KO4AYC) here on QRPer.com:

“I am curious if anyone has used the AX1 with the AXE1 40 meter extender and tuned this antenna for 40 meters using the Emtech ZM-2 tuner?”

For the life of me, I couldn’t remember if I’d tried this combo before.

The ZM-2 ATU is a simple manual antenna tuner that you can purchase either as a fun-to-build kit or fully assembled and tested.

I’ve owned my ZM-2 for many years, and I believe every QRP field operator should have one. They do a brilliant job of matching random wire antennas and taking your resonant antenna to a non-resonant band. Being a manual ATU, they require no power source. If you’d like to read a quick tutorial on tuning the ZM-2, read this previous post.

I figured the easiest way to answer Gordon’s question was to give it a go!

The AX1 does require a counterpoise, so before hitting the field, I did check to make sure there was continuity between the shield of the ZM-2’s BNC connector and the black binding post when the ZM-2 was switched to “GND” for coax antennas. Fortunately, there was! I loved this idea because it meant that no matter the radio, I knew I’d have an easy connection to ground for the AX1 counterpoise.

Blue Ridge Parkway (K-3378)

On Wednesday, February 21, 2024, I grabbed the ZM-2, AX1, and AXE 40M coil (since Gordon specifically asked about 40M) along with my Yaesu FT-818ND. It was time to see just how effectively the ZM-2 might match the AX1.

I store my AX1 in this Maxpedition pouch (see link in gear section below).

Upon arrival, I began setting up the station.

Even though it was approaching 2:00 PM locally, I wanted to see if the ZM-2 would match the AX1 (with AXE coil) on 40 meters first. I didn’t expect a lot of activity on that band so early in the afternoon, but I figured I could hopefully work a couple of stations.

I attached the AX1 directly to the ZM-2 antenna port and deployed the whip and 40M counterpoise.

It was a bit gusty, and I quickly realized that the AX1 might topple over in the wind. To secure the antenna, I used the handle of my GR1 backpack. It was a semi-effective arrangement (actually, the handle sort of pulled the antenna toward the pack, which wasn’t ideal either–I eventually removed it).

In calm conditions, I wouldn’t worry about the antenna toppling over; the ZM-2 provides enough of a base that it’s stable. In the wind, though, you’ll definitely need to secure the ZM-2/AX1 combo to keep it from being blown over.

My plan was to start on 40 meters, then also hit 30, 20, and 17 meters. This would give me an opportunity to see if the ZM-2 could match the AX1 on multiple bands.

Side note: I can’t remember if I mentioned this in a previous field report, but one sad bit of news for me is that there’s a new source of QRM at the Folk Art Center. It’s likely coming from the VA medical complex next door, but it raised the noise floor to at least S5 on most bands. This will make it more difficult for me to work weak signals from this particular POTA site.

Then again? My buddy Alan (W2AEW) recently pointed out to me that compromised antennas like the AX1 don’t feel the effects of local QRM as a higher-gain antenna would. I’d been thinking the same thing.

Gear:

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On The Air

I hopped on the air and started calling CQ POTA on the 40-meter band. I worked one station quickly (thanks, W5GDW) and then silence. I didn’t expect 40 meters to be active this time of day, but I didn’t think it would be completely dead either.

I checked the POTA spots page and discovered that the connection to the Reverse Beacon Network was down. Even though I scheduled the activation, the system hadn’t spotted me.

Once spotted, I worked three more stations in quick succession.

I didn’t hang around on 40 meters. Continue reading Let’s Give it a Go: Pairing the Elecraft AX1 and Emtech ZM-2 Manual ATU

POTA by Lantern Light: One Activation in Two Days with Two Antennas!

On Friday, February 9, 2024, I had an opportunity to do an extended Late-Shift POTA activation in Pisgah National Forest. I couldn’t pass that up!

Once again, one of my daughters had a casting call and a Shakespeare performance that opened up an activation window from about 17:00 – 20:00 local (22:00 UTC – 01:00 UTC).

If you’ve followed my POTA activities for a while, you’ll note that multi-hour activation windows are very much a rarity. More often than not, I’m squeezing activations into 30-60 minute windows of time as I go about my work and family duties.

Pisgah National Forest and Game Lands

The closest POTA site, once again, was Pisgah National Forest (K-4510) and Pisgah Game Lands (K-6937). There are so many sites to choose from within Pisgah; it’s always a difficult decision in terms of picking a location.

In this case, I decided to stay a little closer to mobile phone service just in case my family needed to reach me during that time. I chose the Sycamore Flats picnic area and was happy to see that the picnic shelter was available.

I thought it might be fun to set up two antennas since I had so much time. For the first part of the activation, on 20 meters, I would deploy the Chameleon MPAS Lite vertical.

For the second part (the following UTC day), I would deploy my MM0OPX 40-meter end-fed half-wave as I knew 40 meters would be much more active after sunset.

EFHW Deployment

Since sunset was approaching, I deployed my MM0OPX EFHW first because it’s much easier to deploy a wire antenna in a tree when it’s still light outside.

Side note: I mention in the activation video that a good headlamp (like my Fenix) makes working in the dark quite easy. I’ve deployed wire antennas after sunset with headlamps before–it’s quite doable–but I still prefer using a throw line when there’s still sunlight. It’s just easier (for me, at least) to judge distance.

I deployed the EFHW in a tree and in the brush between two pathways. While it would have been easier to deploy it on a path, I always try to deploy my wire antennas in a way that hikers and other park guests wouldn’t easily walk into them–especially at dusk when even high-visibility line colors are difficult to see.

Chameleon Carbon Fiber Tripod

The second antenna deployment was my Chameleon MPAS Lite vertical, and this activation gave me an excuse to test the new Chameleon carbon fiber portable tripod.

In January, Chameleon sent me a box with a few of their smaller accessories/promotional items. I plan to give away everything, save the tripod, in an upcoming QRPer giveaway.

I’ve been eager to test the tripod because it’s lighter and easier to transport (in my SOTA pack) than the stainless spike that comes with the MPAS Lite antenna system. This tripod will also come in handy when operating at parks that don’t allow stakes in the ground. Continue reading POTA by Lantern Light: One Activation in Two Days with Two Antennas!

SSB Style: Mark pairs the Elecraft KX3 and AX1 for some challenging activations

Many thanks to by Mark (W2ITG) who shares the following field report:


Elecraft KX3/AX1 Field Report

by Mark (W2ITG)

I’m an avid POTA activator and wanted to try an experiment to see if I could complete an activation using just the Elecraft KX3 & AX1 on 40 & 20m SSB. I’ve seen others do it on CW but not on SSB. My CW learning is not going well by the way.

This was at K-1635 Washington Rock State Park 02-07-2024, with a beautiful view of the NYC skyline approximately 20 miles away.

My 1st attempt was a failure because I ran into SWR issues on 20m when I picked up the microphone & RF was getting into the audio as well. This was with the antenna mounted directly on the side of the radio using a 90 degree elbow connector, the AX1B bipod & an elevated radial connected to one of the case screws of the radio, unfortunately it didn’t work.

It’s a good thing I had brought along my Tuftln EFHW and telescopic carbon fiber fishing pole as well because it saved the day which allowed me to complete the activation. When activating make sure to have a backup plan, so far I have no incomplete activations.

Fast forward to 02-27-2024 I’m making another attempt but using a clamp mount, clamped on to the side of the picnic table, 25’ of ABR Industries RG-316 with built in CMC choke, the Elecraft AXT1 tripod adapter, and an elevated counterpoise.

I was much more successful, but barely. I did get my 10 contacts, 7 on 40m and 3 on 20m. This really took me by surprise as the AX1 is more of a compromise on 40 than it is on 20m.

Radio set up at a different picnic table.
This clamp mount was taken from one of my BuddiStick setups.
Notice the electric fence post in the background to elevate the counterpoise.
The QSO map, it took me an hour and a half to get these 10 contacts.

Using the AX1 was quite the challenge to say the least. It does prove that even with a very limited antenna you can make contacts. My guess as to why it didn’t work as well on 20m, is poor band conditions. Living in the very populated northeast is what I believe allowed me to make more contacts on 40m.

Would I recommend buying this antenna? Most definitely, just as long as you know what it’s limitations are. I will try another attempt, but by trying 2 elevated counterpoise wires instead of 1. This antenna can use all the help it can get.

QMX – From Kit to Field!

by Matt (W6CSN)

The Radio

The QMX by QRP Labs is a five band, multi-mode radio introduced by Hans Summers G0UPL at FDIM in 2023. The QMX is the next logical step in the radio development journey at QRP Labs, bringing together the innovative approach to FSK modes like FT8 from the QDX and the CW performance of the QCX series. This is all done in same enclosure as the QCX-Mini which is not much larger than a deck of playing cards.

Size of the QMX compared to standard deck of playing cards.
The QMX is about the size of a deck of cards.

The keen observer will notice that the QMX also sports a built-in microphone which, along with associated circuitry, supports future introduction of voice modes by way of firmware update. Other notable features include SWR metering with protection as well as solid-state “PIN” diode T/R switching, plus the option for “high band” coverage of 20 through 10 meters in addition to the original 80m-20m version.

Most hams have, at one point or other, forgotten to throw the antenna switch, adjust the tuner, or even connect an antenna before transmitting. The SWR meter and protection really sets the QMX apart from earlier QRP Labs radios. There are plenty of sad tales on the QRP-Labs forums from QCX or QDX users that “smoked” the BS170 mosfet finals in a moment of operating into a badly mismatched load. It’s remarkably easy to do, ask me how I know!

The Build

Based on experience with the QCX-Mini and having put together several QDX’s, I admit to being hesitant to starting assembly of this radio. The level of integration in the QMX as a multi-band, multi-mode unit is probably the highest yet to come out of QRP Labs. The components that were merely small in earlier radios are absolutely tiny in the QMX, specifically the LPF toroidal cores. The main board, internal switching power supplies, display, and controls board are all sandwiched together in a tight fit for the custom enclosure.

photo showing a partially completed circuit board
Most of the electronic components installed on the main board.

The build started with a slow and methodical approach of doing a little bit each day and working in the morning when my mind was fresh and there was good light on my workbench, a.k.a. the dining room table.

The first “disaster” happened when performing the factory recommended modification to Revision 2 boards shipped in 2023. The mod calls for a protection diode to be installed across a SMD mosfet. Several leaded 1N4148 diodes were available in my “junque” box so I attempted to carefully fit one of these in the right position on the board. While soldering the diode in place I managed to lift C508, a microscopic .1uF SMD capacitor, clean off the board!

photo of circuit board with modifications
The suggested modification adding a protection diode.

Given the tools at my disposal, there was no way I was going to be able to get that capacitor back into place. Therefore, I grabbed a standard through hole .1uF cap and painstakingly got it connected in the right place, verified by lots of continuity testing.

Once finished with all the electronic components on the main board, I was feeling pretty cocky and also the completion of the project was more clearly in view. The cautious and methodical approach gave way to a faster build pace, which directly lead to the second “disaster.” While installing the headers that connect the main board to the display board, I failed to CAREFULLY READ THE ASSEMBLY MANUAL and soldered the male pin headers where I should have installed the female sockets!

This misstep might have ended the project right then and there if I had not at some point in the last year bought a proper desoldering tool. This is not an expensive automatic vacuum pump powered solder re-work stations, but rather a heating tip and manually actuated solder sucker built into one tool. Twenty-two unsoldered connections later, we were back on track. Continue reading QMX – From Kit to Field!

QRP & Coffee: Late-Shift POTA using the new Chelegance MC-750 80 Meter Coil!

I mentioned in a previous post that Jesse at Chelegance had sent me some antenna goodies to evaluate. One of them was the MC-599 portable dipole antenna which you might have read about in my previous field report.

Another item he sent, which I was equally excited about, was an 80-meter coil for my beloved MC-750 vertical antenna.

In the spirit of full transparency: he sent this at no cost to me, and, as a reminder, Chelegance is also an affiliate of QRPer.com.

I’ve been eager to take the 80-meter coil on a POTA activation because 1.) if it proved effective, it would be great to have such a low-impact, low-profile antenna for 80 meters, but 2.) it’s been very difficult to fit in an evening POTA activation with my family life.

It would have been difficult to gauge how effective an 80M antenna performs in the late morning or early afternoon when I typically activate local parks/summits.

On Wednesday, February 6, 2024, a two-hour window of opportunity opened. One of my daughters had a dress rehearsal that night, and I knew of a nice, quiet, secluded POTA spot only 25 minutes away.

Pisgah National Forest (K-4510) and Game Land (K-6937)

My original plan was to arrive at the Looking Glass Falls’ picnic area, deploy the antenna, fire up the stove, make some coffee, eat on-site, then begin my activation after the start of the UTC day.

So why wait for the new UTC day?

Mainly because once you hit the new UTC day, it counts as a new activation. That really works in your favor as an activator if your goal is to complete a valid activation (with ten contacts) and you’ve enough time to do that before the UTC rollover. If you time it all correctly, you could activate double the parks with a minimum of 20 contacts (split 10/10). In my case, that would mean a total of four parks activated in one evening (since this was a two-fer).

I decided fitting in an activation prior to the UTC rollover simply wasn’t worth the rush.

Once I arrived on-site, however, I was already changing my mind.

I started my activation video, deployed the MC-750, and looked at my watch. I had roughly 15 minutes before the UTC rollover.

It would be tight, but I decided to give it a go and try logging ten contacts before 18:59:59 local (or 23:59:59 UTC).

If I couldn’t log ten before the UTC day, who cares!? It would be a fun challenge for sure, but I wasn’t going to cry if I couldn’t gather enough contacts for a valid activation.

There was another factor, too: operating 80 meters with a 17′ loaded vertical isn’t exactly “efficient.” My theory, though? It doesn’t need to be efficient. It’s crazy portable, convenient, and as a POTA activator, I only need enough performance to get the job done.

Time to hit the air!

Radio Gear:

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Coffee Gear:

Photo from the Fall of ’23.

On The Air

I’d scheduled my activation on the POTA website, so was relying on it to spot me via the Reverse Beacon Network.

I started calling CQ POTA and the contacts started rolling in… very… slowly.

Well, it felt slow because I had a goal of ten contacts in fifteen minutes. Continue reading QRP & Coffee: Late-Shift POTA using the new Chelegance MC-750 80 Meter Coil!

Filling in the Gap at Skidaway Island

The Sunday of President’s Day weekend, I was supposed to camp overnight at Reed Bingham State Park and pursue two more activations for my 2024 goal of 60 new-to-me parks. However,  the Wednesday evening prior, I sustained an injury to my right hand which happens to be my sending hand. The injury was serious enough that I rescheduled that trip for June and, for my bi-weekly QSO with my code buddy Caryn KD2GUT, I sent on the paddle with my left-hand which turned out better than I expected.

Since I did not go out of town as planned, my son Sean attended his bi-monthly Dungeons and Dragons (D&D) meeting Sunday afternoon. Another code buddy, Gary K4IIG, suggested that while I waited for Sean, I should consider activating. The weather was unpleasantly chilly and overcast so I opted against an activation but did want to try out my new antenna, the Chelegance MC-750. I knew I needed another vertical for my POTA kit and it came highly recommended by several other hams.

Not welcoming weather!

After dropping off Sean, I headed to Skidaway Island, a 30-minute drive. Seven hundred acres of the north end of the island belong to the Skidaway Institute of Oceanography, part of the University of Georgia. The site is for salt marsh research and houses the administrative offices for Gray’s Reef National Marine Sanctuary. The land is open to the public for daytime hiking and wildlife viewing. In fact, Daisy and I have walked there on several occasions. The habitat is typical coastal maritime forest with live oaks, Spanish moss, and palmettos along with some more open areas populated by pine trees.

Daisy and I chose the open field outside the institute at which to park and set up the new antenna. We were not the only ones using the field that afternoon despite the weather. While there, several other dog owners showed up to let their pups run and play in the field.

I read the simple three-page instructional PDF from Chelegance’s website and thought I had a good idea of how to set up the MC-750. However, I had not read any instructions about using it with the tripod accessory. I knew the bottom spike needed to be removed but couldn’t get it out with my bare hands. This is why I carry a Wave+ Leatherman [QRPer affiliate link] with me! I rarely use it but when I need it, I REALLY need it. Soon the spike was off and I was ready to set up the antenna.

True to what I heard, the Chelegance vertical is easy to set up. You screw together a few sections, plug in the four radials at the bottom, select your band and extend the whip to the location marked on it, then screw the whip on. Viola! Yes, it was that easy!

Usually my son’s D&D sessions last 3.5-4 hours so I figured I would log onto the Straight Key Century Club (SKCC) sked page and see if I could scare up some QSOs as I work toward the rank of Senator. Yes, even POTA Babes do non-POTA things. For me, my non-POTA CW activities are code buddy and SKCC-related QSOs.

SKCC is a wonderful organization of more than 28,000 ops from all over the world. To pursue their awards and ranks, one has to use a mechanical (straight, cootie, or bug) key though anyone can participate in their sprints or other events to join in the fun (just send “none” for the SKCC number if using a paddle). It is because of them that I learned to use a straight key and cootie (my favorite key) and am now learning to use a bug.

I decided to start with 20 meters and moved the whip to the 14 MHz mark.  Then I remembered my code buddy Caryn KD2GUT mentioning something about a contest going on this weekend. I set up my laptop and checked the Reverse Beacon Network online graph by HA8TKS. WHOA! That band was chock full of signals. As I was using my KX2 and was therefore QRP,  I knew there was no point calling CQ on that band.

Source: https://dxcluster.ha8tks.hu/V2/rbn_ct1boh/

What about 17 meters? Checking that band yielded much better results. Now to log into the SKCC sked page.

Source: https://dxcluster.ha8tks.hu/V2/rbn_ct1boh/

The SKCC sked page is a wonderful resource. You can private message ops for a QSO or just to say hi! If calling CQ, you can post your frequency and on what you are working. I claimed 18.088 and noted I was working toward Senator, using QRP and slower ops were welcome. (I like to slow down for newer ops or those who are in an ambling frame of mind as many other ops slowed down for me when I entered the hobby.)

I spent about 10 minutes calling CQ and queried on the general section of the sked page if anyone was hearing me as I had a new antenna. That is when Jim N0IPA from Colorado answered my call. Jim, like me, is learning to use the bug. I suspect he is working on the Triple Key Award, too. To achieve this award, an op has to have 100 unique SKCC-member QSOs each with a straight key, cootie, and bug. I happened to be Jim’s first bug QSO! The standard SKCC exchange is RST, QTH, name, and SKCC number and it wasn’t long before we had each other in our log.

About ten minutes later, Jacob N3VH answered my call. He is located in New Jersey and said by the end of our QSO, my RST was a 559. Both Jacob’s and Jim’s QSOs counted toward my Senator progress putting me at 48 out 200 QSOs left to earn my toga!

Unfortunately, my son’s D&D session ended earlier than expected which meant it was time for this POTA Babe to call QRT.  The short time was well worth it as I now felt more comfortable with the new antenna and was 2 QSOs closer to earning the rank of Senator with SKCC. Plus, I got on the air with QRP for a non-POTA exchange which is unusual for me. I also have a place I can visit (if the weather cooperates) two weeks from now for more non-POTA QRP work. The fun with ham radio never stops, does it?!

And for those of you wondering how my progress with my 2024 POTA goal is coming along, you’ll find out soon when I attempt to activate park #17 on that journey. Stay tuned…

QRP POTA and testing the new JNCRadio MC-599 portable dipole antenna!

In late December 2023, I received a package from Jesse at JNCRadio/Chelegance. It was their new MC-599 portable dipole antenna. They sent it—full disclaimer: at no cost to me—for evaluation, but shortly after receiving it, life got crazy and I was delayed in taking it to the field.

Fast-forward to February, and I was eager to take it to the field and see how it might perform. On February 5, 2024, a nice window of opportunity opened in the afternoon while one of my daughters was rehearsing A Midsummer Night’s Dream with her cast. Pisgah National Forest and Game Land were a 20-minute drive from her meeting site, so I headed there to deploy this new antenna.

The JNCRADIO MC-599

On-site, I pulled out the two main components of the MC-599 dipole system: the bespoke padded bag holding the antenna and the portable mast.

I knew the basics about assembling the MC-599 because I had watched a video on the Chelegance website that morning.

However, this was the very first time I had deployed the MC-599. I had never even removed any of the antenna components from the padded bag.

With this antenna, it’s best to have an open area for the two sides of the dipole (two telescoping whips) to fully extend without touching tree branches, etc. I had one particular picnic site in mind at the roadside picnic area I chose, but a couple was having a picnic there when I arrived. I waited to see if they might be leaving soon, but they weren’t, so I chose a site I had used before, even though it was flanked by trees.

Assembly was easy: I simply attached the center of the dipole to the 13′ mast, then attached the two telescoping whips to either side and extended them to the 20M position silkscreened on the whip (identical to the MC-750 vertical markings—see below).

Next, you simply attach your coax to the center of the dipole, then extend the mast all the way up.

I had to avoid touching tree branches, but it actually fit quite easily into this small space.

Since it was a bit breezy, I used some line to guy the mast. Ideally, you’d want a minimum of three guying points, but I only had two lines with me, so I made do, and it worked fine—the antenna was stable.

Next, I set up my radio: the Yaesu FT-818ND. Since the MC-599 was, in theory, resonant, I didn’t need an ATU for a match.

I turned on the FT-818 and discovered that the SWR was a perfect 1:1. Amazing.

I suppose I shouldn’t have been surprised because my Chelegance MC-750 is always perfectly resonant (without needing a transformer) simply following the whip markings for guidance.

I should note here that the MC-599 can handle up to 200 Watts PEP—I was pushing 5-6 Watts. Also, the frequency range using the whips is from 20-6 meters. Chelegance also includes two 7 MHz wire elements that can be deployed in an inverted vee shape to play radio on the 40-meter band. It’s an efficient system and has many fewer components than a Buddipole systems I’ve used in the past.

Gear:

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On The Air

Keep in mind that my POTA site was in a deep valley, flanked by high ridge lines–I wasn’t sure what to expect as I hopped on the air.

I started calling CQ POTA and the first station I heard was DL1OK operating in Spain as EA8/DL1OK. Logging Dmitrij was a good sign indeed for this portable dipole!

Stations kept flowing in. I worked my first ten contacts in ten minutes.

I continued working stations in a continuous pileup until I ran out of time. I ended up logging a total of 46 contact all within 50 minutes. I did spend a few extra minutes (as I always do) trying to pull out weak stations and slower code stations.

What fun!

QSO Map

Here’s what this five-watt activation looked like when plotted out on a QSO Map.

Note that this map does not include my contact with EA8/DL1OK in Spain:

Activation Video

Here’s my real-time, real-life video of the entire activation.  As with all of my videos, I don’t edit out any parts of the on-air activation time. In addition, I have monetization turned off on YouTube, although that doesn’t stop them from inserting ads before and after my videos.

Note that Patreon supporters can watch and even download this video 100% ad-free through Vimeo on my Patreon page:

Click here to view on YouTube.

MC-599 notes

I’ve got to admit: the MC-599 made a great first impression.

As with the MC-750, I’m most impressed with the build quality. The components are all sturdy and nicely machined. The padded case was custom made to hold the MC-599 and its components. Everything fits together as it should and—again—was resonant when deployed according to the whip markings.

Even on this inaugural deployment, it didn’t take long to set up. The next time I deploy it, it will go even faster. Packing it up afterward (as you can see in the video) went very quickly.

Keep in mind: the MC-599 is a low-impact, high-profile antenna.

If you’re at a site that doesn’t allow antennas in trees, the MC-599 could be an excellent option. Other than using optional guy lines that would require tent stakes in the ground, it would have no impact on park grounds.

I love the fact that the MC-599 is self-supporting. This would be an absolutely brilliant antenna to use at parks with wide-open spaces and few trees for support.

That said, it is not a stealthy antenna. In fact, portable dipole antennas are some of the most conspicuous portable antennas you could deploy. They’re maybe slightly less conspicuous than a hex beam or Yagi. Even though I was cloaked by a few trees, the couple that was occupying the picnic site I had hoped to use couldn’t help but stop by on their way out and ask what it was I was doing. I bet if I had been using a wire antenna, they wouldn’t have even seen it.

I would always ask permission before setting up an antenna like the MC-599 at, say, a small historic site or urban park.

I could also see using the MC-599 for SOTA (Summits On The Air), but primarily on summits that are either drive-up, or where the hike is minimal. The aluminum alloy mast is lightweight for its size, but it’s quite large to consider taking on an extended hike. However, for a nice drive-up summit, I imagine you could work some serious DX. Just bring a few guy lines in case it’s windy.

I do think the MC-599 would make for a great Field Day antenna. Since it can handle up to 200W PEP and is easy to lower and switch bands, it would be a brilliant portable option for those operating a multi-band 100W rig.

But obviously? It’s an exceptional performer with QRP power. It’s hard to beat a dipole even when it’s only 13′ off the ground.

Thank you

Thank you for joining me on this fun activation!

I hope you enjoyed the field report and my activation video as much as I enjoyed creating them!

Of course, I’d also like to send a special thanks to those of you who have been supporting the site and channel through Patreon, and the Coffee Fund. While certainly not a requirement as my content will always be free, I really appreciate the support.

As I mentioned before, the Patreon platform connected to Vimeo make it possible for me to share videos that are not only 100% ad-free, but also downloadable for offline viewing. The Vimeo account also serves as a third backup for my video files.

Thanks for spending part of your day with me!

Cheers & 72,

Thomas (K4SWL)

Chasing Bands: Two Truck Activations take Brian closer to the James F. LaPorta N1CC Award

Parked in the lot at PA State Game Land 074

Two Truck Activations:  Racking up Bands and DX

by Brian (K3ES)

One of the things I like best about living in Western Pennsylvania is that after a stretch of heavy winter weather, we always seem to get a bit of a break.  The break never lasts long, but the sun comes out and the temperature warms enough to hold a promise of spring.  The first week of February 2024 gave us one of those respites.  With rising temperatures, the snow melted, a strange yellow disc appeared in the sky, and this operator’s thoughts turned once again toward POTA activations, and a free Sunday afternoon provided a perfect opportunity.

A Long-Term Goal

For just over a year, I have been working slowly toward POTA’s James F. LaPorta N1CC Award for activators.  I am under no illusions.  This goal may take me another year to complete on my terms.

The award requires an activator to complete QSOs on ten different amateur bands from each of ten different Parks on the Air entities.  To the extent possible, I am working to finish all of the needed contacts using CW mode and QRP power levels.  So, one specific part of my afternoon outing would include an attempt to make a QRP CW contact on my tenth band from PA State Game Land 283, K-8977.  Two previous activations of K-8977 had given me contacts on each of the nine HF bands from 80m to 10m.  So this afternoon, I would attempt to make a contact on top band, 160m.

Molly supervises many of my activations, and even when the weather warms into the 40s, she prefers to activate from the truck.

The Activation Plan

With a little bit of advanced planning, POTA Dog Molly and I packed the truck on a Sunday afternoon and headed out to attempt two activations.  First, we would set up at K-8773, Pennsylvania State Game Land 074, a new park for me, where we would have about 2 hours on the air before the time would be right to move to the next park and attempt an activation including 160m.  It would be just a short drive to K-8977, and we hoped to arrive there and set up around 2100Z (4pm EST).  The goal at K-8977 was to get enough contacts for a successful activation, then shortly before sunset move to 160m and get at least one contact to complete activation of the the tenth band.

Parking areas at Pennsylvania State Game Lands are mostly unpaved, but they are well marked.

Activating K-8773

With temperatures running in the low 40s Fahrenheit, I decided Molly would be most comfortable operating from the truck.  She appeared to be quite pleased with that decision.  So we pulled into one of the parking lots at K-8773 and parked along the tree line.  I tossed my arborist line over a branch near the truck, and used it to pull up my Tufteln 9:1 35 ft random wire antenna into a near-vertical configuration.  After connecting the 17 ft counterpoise wire and laying it out along the ground, I attached the 15 ft RG316 feedline and routed it into the truck through the driver’s side door seal.

I clipped the feedpoint of my Tufteln random wire antenna to the 2m antenna on the front fender of the truck.
I threw my arborist line over a tree branch, and used it to pull up the far-end of the antenna.  A few wraps around the handle for the back window of the cap kept it secure for the activation.
The RG316 feedline runs through the door seal into the truck.

Once inside the truck, I set up my KX2, prepared my log book, and made the decision to work my way downward through the amateur bands.  Conditions proved to be amazingly good that Sunday afternoon, and my 5 watt signal yielded 54 CW contacts, including 13 DX contacts spread across 7 European countries.

Moreover, I made at least one of these contacts on each of 8 amateur bands, from 10m to 60m.  Unexpectedly, getting contacts on 8 bands during a spectacular afternoon at K-8773 also puts that park well within striking distance for completing 10 bands, just not on this particular afternoon.

Not a bad afternoon’s work at the first park, not at all!

The KX2 sits on the console of the truck, with its feet straddling one of the cup holders.  This leaves plenty of room for my log book (yes, I’m one of those dinosaurs who uses pencil and paper for logging).
Another view of the operating station.  Note the home made VK3IL pressure paddles above the log book.
Supervising this activation was a particularly difficult task.  Molly has decided that a rest is needed.  She has tucked her nose in the blanket, a definite signal that serious napping is underway.
At K-8773, I logged 56 contacts across 8 bands.  I was delighted that 13 of those contacts were DX from Europe.

Activating K-8977

Packing my gear at K-8977 went quickly.  As a most excellent POTA companion, I rewarded Molly with a short walk along a Game Land road, then a 15 minute drive on some rugged back roads brought us to K-8773.  I had operated from one particular parking lot during previous activations, but a quick look around for places to set up my antenna caused me to head for a  different parking lot.  I would be using a wire antenna that was much longer than normal, and a nearby power line was too close for comfort.

ALWAYS watch for and avoid power lines when deploying your antennas in the field!

To activate on the 160m band, I intended to use my VK160 antenna.  The VK160 is a homebrew 9:1 random wire antenna with a 144 ft radiator and three – 17 ft counterpoise wires.  At the new location it went up quickly in an inverted V configuration.  With counterpoise wires spread out on the ground, and my 15ft RG316 feedline connected and run through the door seal of the truck, it was time to get the station assembled and on the air.  This time the rig would be a KX3 with built-in wide-range tuner.  The KX3’s spectacular tuner matches the VK160 on all bands from 10m to 160m.

I was easily on the air at 2100Z (4 pm EST), and had about 90 minutes before sunset.  My plan was to begin on 40m, and collect enough contacts to assure the activation before moving to 160m around 2200Z (5 pm EST), about 30 minutes before sunset.

Activating on 40m was a safe bet, even running 5 watts CW.  Once spotted, I was working a steady pileup for about 40 minutes.  When 40m callers tailed off, I switched over to 30m for 20 minutes and picked up a bunch more contacts on the new band.  Then, at 5 pm local, I switched over to 160m.  It did not take long to start making contacts.  It was not a pile up, but the three 160m contacts were very satisfying:  eastern Pennsylvania, western Pennsylvania, and Virginia.

I called QRT at 2215Z (5:15 pm EST), packed up my gear in the remaining daylight, and drove home.  I was home in time for dinner, and Molly didn’t say a word about being late for her normal 5 pm dinner time.

At K-8977, I logged 54 contacts.  Since I worked them on 30m, 40m, and 160m, it was entirely expected that most would be located in the eastern US and Canada.  Logging 3 contacts on 160m made it a perfect outing.

I do owe an apology to QRPer.com readers, because in the pace of the second activation, I failed to take pictures during my operation.  If you are interested in visuals, please take a look at previous QRPer articles on building the VK160 and testing it during Winter Field Day 2023.

Gear

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Equipment at K-8773

Equipment at K-8977