Tag Archives: Elecraft T1

New River State Park: Pairing the Discovery TX-500, Elecraft T1, and PackTenna 9:1 UNUN

Last month, my family went on a camping trip to New River State Park and had an amazing time.

I first discovered New River much earlier in the year when I did a multi-park and summit run.  I really liked the park and, especially, the campground, so I decided to return with the family for some proper outdoor fun and relaxation.

Of course, the benefit of camping at a state park is being able to play radio pretty much anytime while on the park grounds. For a few days, it’s like you’re living in a park activation and can actually set up an antenna and use it over the course of multiple days.

It’s such a big departure from my typically short (45-90 minute) park activations.

When we first arrived at the New River State Park campground, I deployed my PackTenna 9:1 UNUN random wire antenna.

I brought two transceivers with me: the Xeigu X5105 and the Discovery TX-500–I pretty much split my operating the time equally between the two radios.

New River State Park (K-2748)

Although I spent much more time on the air than I normally do, I didn’t make videos of each session. One reason is I wanted to operate with earphones–especially since some of my sessions were later in the evening or early in the morning. I didn’t want to disturb my neighbors at the campground.

That and, especially with the X5105, I wanted to see what it would be like to operate with earphones for extended sessions. Prior to making videos of my activations, I almost exclusively used earphones in the field. I appreciate the sound isolation earphones offer–I also find they help tremendously with weak signal work. When I make videos, however, I don’t want to go through the hassle of recording the line-out audio separately in order to use headphones, so I use an external speaker.

I decided to record my Wednesday, June 23, 2021 evening session with the Discovery TX-500.

Gear:

This session started only a few minutes prior to the end of the UTC day which meant I had to watch the clock very carefully and clear my logs at the beginning of the UTC day (20:00 EDT).

In POTA and other field activities, if your activation straddles the UTC day change, you must keep in mind that any contacts made after 0:00 UTC can only be counted on the next day’s logs. This was not a problem for me because I had logged dozens of stations earlier in the day, but if you ever start an activation close to the UTC day change, you need to make sure you log your 10 contacts for a valid activation prior to 0:00 UTC.

Auto-spotting help

Another thing complicating my sessions at New River State Park was that I chose not to schedule my activation via the POTA website prior to our trip.

If you schedule your activation via the POTA website, anytime the Reverse Beacon Network picks up your CQ calls (in CW), the POTA spots website will scrape that information and auto-spot you.  It’s an amazing convenience for those of us who operate CW.

I chose not to schedule my activation days at New River because I had also planned to operate at another nearby park during my stay and I didn’t want the system to spot me incorrectly. That, and I thought I would have mobile phone coverage to self-spot.

It turned out that–contrary to my mobile phone company’s coverage maps–I had no internet service at the park. None.

In order to get spotted, I relied on my Garmin InReach GPS/satellite device to send short text messages to my buddies Mike (K8RAT) and Eric (WD8RIF). My pre-formatted message would prompt them to check the RBN for my frequency, then spot me to the POTA site manually.

I’m incredibly grateful to have had them helping me in the background. Everyone should have a Mike and Eric as friends!

Video

I made a real-time, real-life, no-edit video of the entire activation. Note that it took a while to get spotted, so the first ten minutes are simply me talking (it’s alright to skip that bit…it won’t hurt my feelings!).

Also, here’s a QSO map of that day’s contacts. Note that this includes stations I logged later in the UTC day (i.e. the following morning/day.

Due to some unexpected conflicts, our camping trip was shorter than we would have liked. We plan to visit New River later this year and spend much more time there. It’s a beautiful park!

Thanks for reading this short field report and here’s hoping you get a chance to play radio in the field soon!

73,

Thomas (K4SWL/M0CYI)

943 Miles Per Watt with the Yeasu FT-817ND, Elecraft T1, and 28.5 feet of speaker wire

When it comes to parks, I haven’t picked up many new-to-me “uniques” lately.

In truth, though, I’ve put more effort into activating unique summits which takes more time to plan, plot, and activate. SOTA has taken a bite out of my park uniques, but I’m good with that because to me it’s less about my park/summit numbers and more about the exploration and outdoor radio time.

On Tuesday (July 6, 2021) however, I added one more unique to my 2021 park count: Mountain Island Educational State Forest (K-4858).

This park is actually a modest detour during my weekly travels, but I’ve never popped by for an activation. You see, unlike other state parks I visit, Mountain Island isn’t yet open to the public on a daily basis. On their website, they state that visits must be arranged in advance, so I reached out to them the morning of July 6 and they promptly replied, welcoming me for a visit and activation that very same day!

Off the beaten path

Since this state park isn’t yet open to the public, I didn’t see the typical brown highway signs pointing me to the park entrance, but Google Maps steered me right to the front gate where there’s a sign.

The gates were unlocked and open, so I pulled into the property and met with two of the park staff who were incredibly kind and accommodating. They were both familiar with the Parks On The Air (POTA) program which made it much easier for me to ask about spots where I could set up my station.

First, though, I wanted to know more about Mountain Island Educational State Forest so I asked ranger Laura about the history of the site.

Turns out, Mountain Island is the newest Educational State Forest in North Carolina and has been in the works for more than 20 years.

The Forest is a vast conservation area that protects 12 miles of shoreline on Mountain Island Lake in the Catawba River Basin. This lake is the primary drinking water supply area for Charlotte, Mecklenburg and Gaston Counties. She told me that one in 23 North Carolinians rely on this area for their source of water.

Much of the land was originally owned by Duke Power who put it up for sale in 1998. Conservation groups purchased the land from Duke’s real estate agency in 1998 and put it into a conservation easement. The land is actually in two counties (Gaston and Lincoln) and a portion in the city limits of Gastonia.

The NC Forest Service now manages the forest and supports the public-private partnership with the counties, municipalities, and conservation groups.

Mountain Island has been actively educating school groups and the public about the river basin and local flora/fauna for many years by appointment. Currently, a new education center is being built on the property and will soon be open to the public with regular business hours. Being so close to population centers, I imagine they’ll stay busy!

Shade

Park ranger Laura was kind enough to allow me to set up under a huge tree in front of their ranger station.

I was grateful for the shade: it was 92F (33.3C) and humid.

There were no picnic tables under the tree, but I happened to have two folding chairs in my car. I used one as a table and the other as a chair. I flipped over my GoRuck GR1 backpack to make a stable base for the Yaesu FT-817ND.

Gear list:

On The Air

I was super pleased to put the Yaesu FT-817ND back on the air. It’s been a while since I’d used it in the field because my review radios (TX-500, X5105, etc.) have taken priority.

I love the FT-817ND and believe it’s actually an exceptional transceiver for CW and SSB ops. The CW full break-in QSK is wonderful and I actually like the mechanical sound of the T/R relay switching (if you like pin diode switching, you should look the other way, though!). With the 500Hz CW filter installed, the front end is pretty bullet-proof, too!

This was the first time I had paired the FT-817ND with my 28.5 foot speaker wire antenna. The random wire antenna needs a good ATU to match impedance, so I employed the Elecraft T1 this time (soon I’ll also try the LDG Z-100A).

I had planned to do a little SSB work, but quickly realized I’d forgotten the FT-817ND microphone. A shame because this site actually has excellent mobile phone service so I could have spotted myself to the network. Next time–!

I started on 40 meters CW and worked ten stations in 21 minutes. That’s a perfect pace for me!

Next, I moved to 20 meters where I worked six more in 9 minutes.

I was incredibly pleased with how well the speaker wire antenna performed–especially on 20 meters.

From the Piedmont of North Carolina, I worked Montana, Texas, New Hampshire, and Italy with 5 watts into $4 worth of speaker wire.

I did a quick back-of-the-envelop calculation and discovered that I yielded about 943 miles per watt!

To be clear, IK4IDF did all of the heavy lifting in our contact with his 9 element Yagi, but still it’s awfully exciting to put DX in the logs with only fair propagation.

Video

Of course, I made a real-time, real-life video of the entire activation (save the set-up and take-down):

Click here to view on YouTube.

Onward and upward!

I packed up quickly because I had a SOTA activation planned that afternoon on Anderson Mountain. I’ll post a field report and video of that activation soon.

Rev 4 FT-817 Buddy Board

Also, I’m about to start soldering together G7UHN’s new Rev 4 FT-817 Buddy Board! Revision 2 worked wonderfully, but revision 4 now includes a CW memory keyer among other upgrades! (Woo hoo!)  All of the components are now in the shack–just a matter of soldering them together and programing the Arduino Nano. Andy, if you’re reading this, expect a call from me soon, OM!

Thank you!

I’d like to thank all of you for reading this field report and I’d especially like to thank those of you who contribute to QRPer.com via Patreon and our Coffee Fund. While my content will always be free and QRPer is very much a labor of love, your support helps me purchase gear and supports my radio travels. With that said, if you’re saving up for your first radio or need to invest in your own kit, I’d rather you support yourself.

My goal with QRPer is to champion field radio operations and encourage others to discover the benefits of playing radio outdoors!

Have a wonderful week!

73,

Thomas (K4SWL)


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Pairing the TX-500 and MPAS 2.0 on a beautiful morning activation of the Blue Ridge Parkway

On the morning of May 10, 2021, I had a hankering to head to the Blue Ridge Parkway for a quick park activation.

I had a particular spot in mind–one that’s only two miles or so from my QTH as the crow flies. The only wrinkle in my plan was that we were expecting rain all morning and at our house we were in thick fog and light, steady rain.

Normally when I have these conditions, I look for a sheltered site, but I thought it might be a great time to take out the TX-500 since it’s weather-resistant. Why not, right?

I packed the lab599 Discovery TX-500, my Chameleon MPAS 2.0 vertical, and my Elecraft T1 antenna tuner to pair the two. I also brought along some rain gear.

Although the activation site is close to home as the crow flies, it actually takes about 30 minutes to drive there. By the time I reached the site, the skies were mostly clear and the sun was shining! This time of year, it reminds me of living in the UK: if you don’t like the weather, just wait five minutes.

Gear:

On The Air

This was very much a road side activation. The spot I chose isn’t an overlook–although it did provide amazing views–it was simple a pull-off.

This is where antennas like the MPAS 2.0 are so useful: they are self-supporting and very quick to deploy. Since I was set up right off the road, I also appreciate using verticals rather than wire antennas since the antenna and throw line aren’t in the way of others who might choose to park in the same pull-off.  I can easily deploy the counterpoise and feedline so that it’s out of the way.

As with most park activations, I started on 40 meters CW and only operated 5 watts.

I quickly racked up five contacts on 40 meters, then the band fell silent.

I moved up to 30, then 20, down to 80, back to 60 and 40 again.

About 30 minutes had passed since I was last on 40 meters, so new hunters were checking the bands. I snagged a total of seven more contacts in about eleven minutes.

Obviously, 40 meters was the only band open that morning!

A quick note about 80 meters

I get a lot of questions from readers and YouTube subscribers about my use of the 80 meter band during the daytime.

I go into more detail about this in the video, but contrary to what many think, 80 meters can be a very useful daytime band for POTA activators.

While it’s true that you’re not going to work DX on 80 meters during the daylight hours (else, highly unlikely), you can still work local and regional stations.

Keep in mind that POTA, WWFF, and SOTA activations aren’t about working DX. DX is fun and perhaps a personal goal, but it has nothing to do with success in achieving a valid activation.

Basically, any contacts–DX or local–will get you what is needed for a valid activation.

If, like me, you live in a part of the country where there are a concentration of park and summit hunters/chasers within a daytime 80 meter footprint, then hop on that band and give it a go!

I’m not sure how useful this might be for activations in sparsely populated areas like Montana or the Dakotas, for example, but along the east and west coast, 80 meters is your friend.

At this particular activation, I didn’t didn’t employ an efficient antenna for 80 meters. While I’ve made numerous 80 meter contacts on the CHA MPAS 2.0 in the past, it’s just not physically large enough to be efficient on that band.  The CHA Emcomm III Portable or another long wire antenna would have provided better results. But I knew that 40 meters and possibly 30 meters would be my best bet that day, so the MPAS 2.0 was a great choice.

Again: don’t forget about 80 meters. It’s helped me snag many an activation!

Video

Here’s my real-time, leal-life, no-edit video of the entire activation:

Click here to view on YouTube.

You might hear an audio pop when I’m keying on the TX-500. This is happening because I have the audio gain cranked up all the way for the video. While the speaker/mic can get quite loud, when I’ve got it located so far from the camera mic, I run it at 100% volume to be heard. I recently changed my CW T/R recovery time from 100ms to 400s which eliminated most of the audio popping.

Thank you for reading this field report! I hope you’re getting an opportunity to take your radios outdoors this week!


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Discovery TX-500: Attempting a speedy POTA activation with a new rig and new antenna

While I love the opportunity to head outdoors and play radio, I also love shaking up my field kit and trying different combinations of radios, antennas, and other station accessories.

When using new-to-you gear, though, a best practice is to set everything up at home before you hit the field. This way, you can confirm that you have everything you need and you can also familiarize yourself with the gear prior to activating a park or summit.

Last Sunday (May 2, 2021), I threw caution to the wind. Well, sort of.  At the very last moment, I decided to squeeze in an activation en route to my sister’s home to do some brush-cutting and yard work.

The lab599 Discovery TX-500

Basically, I was chomping at the bit to take my lab599 Discovery TX-500 to field.

You see, in August 2020, I received an early pre-production TX-500 to evaluate for one week. In that seven day span, I activated seven parks with the TX-500 and enjoyed every minute of it. Because the loan period was limited, I packed a lot of TX-500 air time that week, then wrote this review for The Spectrum Monitor magazine.

As I mentioned in a previous post, if I would have had the opportunity to buy that loaner TX-500 last year, I would have. It wasn’t an option, though, as so few working models existed at the time. Now that I had a TX-500 in hand again, I couldn’t wait to hit the field with it.

Last Sunday, the weather was beautiful in western North Carolina, but clouds were moving in and we expected scattered showers in the latter part of the afternoon. The last thing I wanted to do was my sister’s yard work in the rain, so I needed to make the activation a speedy one.

But the TX-500 wasn’t the only piece of new gear. I also recently ordered and received a PackTenna 9:1 UNUN random wire antenna. I wanted to see how well it would perform, too, so I decided to pack my Elecraft T1 ATU and give it a go, too!

For the record: when you’re in a hurry, it’s not only a really bad idea to hit the field with a new radio and antenna, but to also throw the entire field kit together in 5 minutes before walking out the door.

On the drive to Lake James,  I mentally packed and re-packed the field kit trying to decide if I might have left out a crucial component (say, an adapter or cable). I also made the decision not to make a real-time, real-life video because 1.) this would surely  turn into a very clumsy deployment, 2.) I was pressed for time and didn’t want to set up the video, and 3.) I only had my iPhone with me to make the recording which would mean I would be giving up Internet and mobile phone access at the park which is important for spotting purposes.

So what did I do?

As I turned into the park entrance, I decided to make a recording of the entire activation from set up until the last logged contact.

Why would I do this to myself?

I reminded myself that the goal of my YouTube channel is simple: real-life, unedited examples of field radio operating. 

All of us, at some point, use new equipment in the field and we stumble through the process as we give the system a shake-out. So why not record it, right?

My iPhone battery had about 80% capacity. I knew if I tried to use the personal hotspot while recording the video–so that I could spot myself on the Microsoft Surface Go tablet–it would run down the battery in 20 minutes or so.  I immediately put my iPhone in airplane mode to preserve the battery.

Lake James State Park (K-2739)

I know this park quite well and assumed it would be busy on a beautiful Sunday afternoon. It was, in fact. I was confident I’d find a good operating spot, though, because they’ve a large picnic area and loads of tall trees to support wire antennas. And mid-afternoon, it was unlikely all of the picnic tables would be occupied.

Gear:

I found a nice spot to set up and deployed the PackTenna in short order.

Since my iPhone was doing video duty, I didn’t take extra photos.

I hooked up the Elecraft T1 and attempted to find a match on 40 meters.  I thought I did find a match at first, but it turns out that the T1 was in Bypass mode. I didn’t have my reading glasses handy, so thought I saw a great match on the TX-500’s display. Turns out it was floating around 2:1. Still: not a bad match.

I worked five stations, then moved to the 30 meter band. It was then I finally realized the T1 was in bypass mode. I found my spectacles, read the front panel of the T1 and remedied that in short order (I can never remember the button press combo to toggle bypass mode!).

I tuned 30 meters and got a great match.

On 30 meters, I worked two stations.

I then moved up to 20 meters where I worked two more.

Then I moved back down to 40 meters where I topped off the activation with an additional three contacts for a total of 12 as I called QRT.

I’m very grateful to my buddy Scott (KN3A) who worked me on three bands all while he was activating a park in Pennsylvania! Thanks for those P2Ps, Scott!

In fact, I’m grateful Scott took the time to work me on multiple bands because it help bring my numbers above the 10 stations needed for a valid POTA activation.

Video

QSOmap

After going QRT, I quickly packed up my gear (which was easy because there were so few parts), and started the 45 minute drive to my sister’s house. Fortunately, the rain held off the whole time I did the yard work!

I’m so happy to have a TX-500 back in the field radio arsenal.

Shortly after this activation, I officially purchased this loaner TX-500 unit from lab599. As I said in my “unboxing” video, there was no way I was sending this unit back. 🙂 Now I won’t feel bad if it gets dinged or scratched!

I’m sure the TX-500 will be in heavy rotation for a while. Please comment if you have any questions about this radio or the 9:1 UNUN PackTenna. I’d be happy to answer your questions!


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SOTA and POTA Field Report from Mount Jefferson State Natural Area

On Monday, March 22, 2021, I performed three QRP field activations in one day. I started off the day with a visit to Three Top Mountain Game Land, and then headed to Mount Jefferson State Natural Area for a POTA and SOTA activation before heading to New River State Park.

When plotting my multi-site activation day, I picked Mount Jefferson because it’s a SOTA entity (W4C/EM-021). I only realized later that it’s also a POTA entity (K-3846). I mistakenly assumed Mount Jefferson was a county park rather than an NC state park.  To do both a POTA and SOTA activation simultaneously is ideal!

Mount Jefferson (W4C/EM-021)

This was my first visit to Mount Jefferson and, frankly, I wasn’t sure what to expect in terms of hiking.

The park itself is amazing! North Carolina parks never let me down.

The entrance is near the base of the mountain and very close to the town of West Jefferson. The park road climbs up the side of Mount Jefferson –there are a number of spots to park, hike, and picnic.

I had not checked the trail map in advance, but I had read that the summit trail was accessible from the parking and picnic area at the end (top) of the park road.

I hopped out of my car, grabbed my SOTA pack, and very quickly found the trail head.

The trail is impeccably maintained and wide enough for vehicle use (no doubt these trails double as access for tower maintenance on the summit).

The hike to the summit from the parking are was incredibly short–about .3 miles. Normally, I’d want a much longer hike, but since I was trying to fit three site activations in a span of four hours, I didn’t complain.

On top of the summit, one is greeted by a typical cluster of transmission towers.

While I appreciate checking out antennas and towers, these are never a welcome site because they can generate serious QRM, making a SOTA activation difficult.

I also found a park weather station on the summit. Nice!

I searched around and found a spot to set up well within the activation zone but giving me a bit of distance from the towers.

Gear:

My Yaesu FT-817ND was desperate to get a little SOTA action, so I decided to pair it with the Chameleon CHA MPAS Lite using the Elecraft T1 ATU to find matches.

After putting the FT-817 on the air, I was very pleased to hear that the nearby transmission towers and power lines weren’t causing any noticeable interference.  This was a very good sign because, frankly, propagation was very unstable that day and I had real concerns about being able to work stations on 40 meters.

I hopped on the air and quickly realized I’d forgotten to hook my external battery up to the Yaesu FT-817ND. This meant I was running something closer to 2.5 watts as opposed to a full 5 watts. I decided to attempt the activation without the external battery and add it if needed.

I started operating on 20 meters and was very pleased to quickly rack up a number of contacts. I could tell that most of these contacts were via SOTA because I recognized the calls and primarily SOTA chasers.

Within 11 minutes, I worked 10 stations on 20 meters in CW. I was very pleased with how quickly those QSOs rolled in and how easily I logged the four needed for a valid SOTA and 10 needed for POTA activation–all on 20 meters.

Next, I moved to 40 meters where I worked two stations and 30 meters where I worked one. For sure, 20 meters was a much stronger band than 40 and 30 turned out to be.

After working 13 stations, I packed up.

Obviously, 2.5 watts was plenty for this activation!

I would have loved to stay longer, but frankly, I needed to stick to my schedule because I had one more park to fit in that day! (More on that in a future post and video!).

Here’s my QSOmap for the Mount Jefferson activation:

And here’s my full log:

Video

Even though I was a bit pressed for time, I still made one of my real-time, real-life videos of the entire activation. I hope you enjoy:

Next up will be an activation of New River State Park. I hope to post this early next week.

Thank you so much for reading this report!


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POTA Field Report: A CW ATNO at Three Top Mountain Game Land

Last Monday (March 22, 2021), I had another opportunity to play radio for the bulk of the day. These are rare opportunities–although I did have another open day only a few weeks ago–so I ty to take full advantage of them! The weather was perfect, so I decided to make a detour to Ashe County, North Carolina en route to visit my parents.

I haven’t been to Ashe County in the better part of a decade although I love this pretty secluded part of western North Carolina.

Ashe County is very much a destination–not a place you’d easily happen upon in your travels. It’s very much worth the detour, though, as it’s close to Boone/Blowing Rock, the Blue Ridge Parkway, and a number of other spots outdoor enthusiasts would love. The towns of Jefferson and West Jefferson are everything you’d expect from small town NC: charming and friendly. Plus, they have some excellent sources of cheese!

I plotted a three park, one summit run for that Monday. I’d have about one hour at each site, which would hopefully be enough to set up, play radio, and pack up. All three sites were new to me–meaning, I had never personally activated them.

My first destination?

Three Top Mountain Game Land (K-3869)

I left my QTH around 9:00 local and arrived on site around 11:30. I had researched the most accessible parking area (there were many for this game land) and one that would be closest to my other destinations.

The game land maps are pretty accurate, but this parking area was a little tricky to find as it’s small, elevated off the road, and you have to enter a private driveway to find it. the “Hunters Parking” sign is, let’s say, “discreet.”

Honestly? Finding these sites is all part of the fun.

Gear:

Going into this activation, I knew there would be challenges. For one thing, propagation was similar to the day before: poor and unstable.

Secondly, the Reverse Beacon Network (RBN) auto-spotting functionality on the POTA spots page was not working. That was a bad thing because this game land site had no hint of mobile phone service.

I did anticipate both of these issues though, and took precautions:

  • I contacted my buddies Mike (K8RAT) and Eric (WD8RIF) and gave them my full schedule with anticipated start times for frequencies at each location before leaving the QTH.
  • I also had my new Garmin InReach satellite messaging device that I could use to text Mike and Eric should they not be able to hear me that day.

As I’ve mentioned in previous post: successful activations (especially if you’re under time pressure) always include being spotted to the POTA network. It’s as if you don’t exist if you’re not spotted.

“CW ATNO”

 

Another thing working in my favor at this particular site  is that it had only been activated a couple times before and both of those times it was via phone only. My activation would be the first time CW had been used at this site for POTA. This means nothing in terms of the Parks On The Air program–meaning, there are no special awards for this sort of thing–but it does give you a bit of an edge because CW hunters will find the site rare and very desirable. They’ll go the extra mile to get logged.

It’s funny: in 2020, I activated numerous proper ATNOs (All Time New Ones)  for POTA. There were so many here in western North Carolina that just by going to new sites each time, I ended up activating them for the very first time in phone and/or CW.

POTA grew by orders of magnitude last year, though, and now there are so many activators who would love to be the first to activate a site, new entities are often activated within a day of being added. The only true ATNOs left in NC are game lands that have accessibility issues.

On The Air

I deployed my EFT-MTR antenna that I repaired that weekend. I did a very basic repair, attaching the top end of the radiator back to the in-line coil/trap. Somehow in doing this I changed the antenna enough that my SWR on 40 and 20 meters was in excess of 2.5:1.

No problem: I employed my T1 ATU to bring the SWR back down to 1:1.

I hopped on 40 meters and immediately started working stations. No doubt, the rarity of this park was providing my spot with a little extra attention.

In 23 minutes, I worked a total of 20 stations: that’s about as good as it gets, especially with poor propagation.

Once the initial group of hunters died down, I went QRT.

Normally, I would spend more time on-site and move up the band, but I was on a tight schedule and realized I hadn’t allowed any time to grab a to-go lunch!

Video

I did make another real-time, real-life video of the entire activation from start to finish. If you care to watch it, click this link to view on YouTube, or watch via the embedded player below:

Thanks for reading this report. Three Top was a fun activation and I was very happy I didn’t have to struggle to validate it.  The next park that day was Mount Jefferson which also happened to be a SOTA site. I’ll be posting the report and video later this week!

73,

Thomas, K4SWL


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POTA Field Report: Taking the LnR Precision LD-11 out for some fresh air

I mentioned in a previous post that I recently did a thorough clean-out of my shack and home office. It took two full days, and kept me out of the field during that time, but I’m very pleased with the results.

After re-arranging my grab-and-go QRP rigs on their dedicated shelf, one rig was very conspicuous: my LnR Precision LD-11.

Thinking back, it has been ages since I used it in the field–possibly more than a couple of years, in fact. As I packed my bags Sunday morning for a multi-day trip to my hometown, I grabbed the little red LD-11 and stuffed it in my main radio bag. It was time to take it to the field!

Lake James State Park (K-2739)

I didn’t have a lot of time to play radio Sunday afternoon, so Lake Jame State Park was a no-brainer. There, I know I have a number of picnic table options, mobile phone service, and it’s a modest detour off of Interstate 40. Low-hanging fruit in my POTA world.

There was snow on the ground Sunday afternoon, but it was 36F/2C so not terribly cold, just damp.

Due to snow melting in the trees, I set up my station in a picnic shelter where things were dry.

Gear:

Although I’d used the LD-11 recently at home to chase a few SOTA and POTA stations, I had not operated it intensively so it took a little time to reacquaint myself with this little rig.

It’s a gem of a transceiver and has a lot to offer in the field. If you’re interested to learn more about it, I’d encourage you to check out my original review of the LD-11 over at the SWLing Post.

Like the FT-817ND and G90, the LD-11 has no memory keying in CW or Phone. Memory keying is such a useful feature for park and summit activations because it frees up your fist and voice while calling CQ or sending 73s. With the LD-11, I’d be doing all of this “old school” which is absolutely fine for a short activation.

On the air

Although my EFT Trail-Friendly antenna should be resonant on 40, 20, and 10 meters, it was not Sunday because I’m almost certain I’ve finally damaged the radiator coil. I’ve deployed this antenna well over 150 times and yanked it out of countless trees when it got stuck. It’s lasted much longer than I would have ever guessed.

When I tried transmitting on 40 meters, I got a high SWR. Instead of replacing the antenna with another one, I simply hooked up the Elecraft T1 ATU and found a match. This is one good reason why you should always pack an antenna tuner. While employing an ATU might not be as efficient as using a resonant antenna, it can save your bacon in a situation like this and will certainly get the job done (especially if your only goal is a valid field activation).

After matching the antenna, I hopped on the 40M band and logged five CW stations in short order. Obviously, the antenna was working “well enough”–!

As I’ve done with a number of my recent activations, I started recording a video at this point.  I started it after my first five CW contacts due to a lack of space to record a 60 minute video (this one turned out to be 40 minutes and change).

I then moved up to the 20 meter band where I worked one CW station, then switched modes to SSB where I was surprised to work Jon (TI5JON) in Costa Rica, Steve (WA4TQS) in Texas, and Paul (NL7V) in North Pole, Alaska.

Video

This was one of those rare instances where my QRP SSB signal snagged more distant stations than my QRP CW signal.

I’m certain, however, had I spent more time on 20M CW, I would have logged a number of other distant contacts.  Here’s my QSOmap from the activation–not bad for 5 watts into an inefficient antenna:

All-in-all, I was very pleased with the activation. Even though I was making do with a faulty antenna and even though my CW was a little sloppy since I wasn’t quite used to the LD-11 keyer timing, it was so much fun!

I do love the little LD-11 and would certainly recommend grabbing a used one if you find a good deal.

As I mention in the video, the LD-11 is no longer manufactured and it never will be again. The main engineer behind the LD-11, SKY-SDR, and ALT-512–Dobri Hristov (LZ2TU)–passed away in 2020. Dobri was a well-respected fellow and distinguished ham radio operator/DXer. I corresponded with him quite a few times in the past. Sadly, when Dobri passed away, he took the design of all of these rigs with him. His brief period of sickness leading to his death all happened within a year.

So if you find one of these fine transceivers, keep in mind that some internal components (LCD screens, ICs, etc.) might be hard to replace if they fail. These radios are built well, however, so I wouldn’t expect something like that to happen for a very long time.

It was a lot of fun using the LD-11 during this activation and I certainly plan to put it in rotation from now on. Wherever Dobri is now, I like to think he’ll feel those LD-11 signals running through the ether!

Any other LD-11, SKY-SDR, or ALT-512 owners out there?  Please comment!

POTA Field Report: Pairing the Icom IC-705 with the Elecraft AX1 pocket antenna

I think I’ve said before that I don’t like doing things the easy way. At least, I’m coming to that conclusion.

This Saturday (Jan 30, 2021), I had a small window of opportunity to perform a Parks On The Air (POTA) activation.  My park options were limited because I needed to stay near my home and a store where I was scheduled to do a curbside pickup.

The only viable option–since time was a factor–was my reliable quick hit park.

The Blue Ridge Parkway (K-3378)

I plotted a quick trip to the Blue Ridge Parkway Folk Art Center which is centrally-located and, this time of year, there are few visitors.

But what radio take? It had been a couple of weeks since I used the IC-705 in the field, so I decided to take it and rely only on its supplied BP-272 battery pack.

My buddy Mike (K8RAT) had warned me only a few minutes before my departure that propagation was pretty much in the dumps. I’d also read numerous posts from QRPers trying to participate in the Winter Field Day event and finding conditions quite challenging.

Saturday was the sort of day that I should’ve deployed a resonant wire antenna and made the most of my meager five watts thus collect my required 10 contacts in short order.

And that’s exactly what I didn’t do.

You see, a really bad idea popped into my head that morning: I had a hankering to pair the IC-705 with my Elecraft AX1 super compact vertical antenna.

This made absolutely no sense.

I tried to get the idea out of my head, but the idea won. I suppose, at the end of the day, I’m not about taking the easy path (and I’m obviously a glutton for punishment).

I was also very curious if the mAT-705 Plus external ATU could tune the AX1 on 40 meters. More on that later…

Gear:

I arrived on site a few minutes before noon. Setup was fast–that’s the big positive about using the AX1.

Normally, I deploy the AX1 antenna with my KX2 or KX3 and simply attach it to the BNC connector on the side of the transceiver. The AX1 Bipod gives the antenna acceptable stability during operation.

The IC-705 also has a side-mounted BNC connector, but it’s much higher than that of the KX3 or KX2. I’m not entirely sure I could manipulate the Bipod legs to support the antenna without modification.

That and the AX1 needs an ATU to match 40 meters (where I planned to spend most of the activation). Since the IC-705 doesn’t have an internal ATU, mounting it to the side of the transceiver really wasn’t an option.

I employed my AX1 tripod mount for the first time. On the way out the door, I grabbed an old (heavy) tripod my father-in-law gave me some time ago and knew it would easily accommodate the super lightweight AX1.

On The Air

I first tried using the Mat-Tuner mAT-705 Plus ATU to tune the AX1 on 40 meters.

No go.

I tried both the phone and CW portions of the 40 meter band, but the mAT-705 Plus simply couldn’t find a match. SWR was north of 7:1 – 9:1.

Instead of grabbing the Chameleon MPAS Lite or 2.0 from the car, I decided instead to see if the Elecraft T1 ATU could tune 40 meters.

It did.

In short, I logged my ten contacts to have a valid activation, but it was slow-going. All but two of my contacts were on 40 meters CW. The last two logged were on 20 meters CW.

It was a challenge, but I really enjoyed it! And, frankly, considering the propagation, 5 watts of power only using the IC-705 battery pack, and the inherent inefficiencies using a loaded compact vertical antenna and ATU? I was impressed.

Here’s a QSOmap of my 10 contacts:

I bet my effective radiated power was closer to 2-3 watts.

Typically, the AX1 antenna acts almost like an NVIS antenna on 40 meters, but Saturday it favored Mid-Atlantic and the states of IN, OH, and PA. Normally, I would expect more of a showing from the states surrounding North Carolina.

My last two contacts on 20 meters were with KE5XV in Texas and KB0VXN in Minnesota. Not a bad hop!

It took longer to collect my ten contacts than I had hoped and I ran nearly 25 minutes late to my curbside appointment. I’m a punctual guy, but there was no way I was leaving without my ten! 🙂

Here’s a video of the entire activation. Hint: it’s the perfect remedy for insomnia:

Next time I try to pair the IC-705 with the AX1 antenna, I think I’ll try adding a couple more ground radials and see if the mAT-705 Plus can more easily find a match.

One thing I know for sure: the T1 is a brilliant little ATU. While the mAT-705 Plus was never designed to do this sort of match, it’s comforting to know the T1 can.

I’m very curious if anyone else has paired the Elecraft AX1 with the Icom IC-705 or other QRP transceivers. If so, what was your experience? Please comment!

Choosing the best Icom IC-705 portable external antenna (ATU)

I’ve received no less than three inquiries this weekend from readers who are seeking advice about purchasing a portable external ATU to pair with their Icom IC-705 transceiver.

Fortunately, there are few options on the market and I believe there is no “right” one because choices are really based on operator preferences.

I’ll do my best to sum up my thoughts below based on the three ATUs I regularly employ and what we know so far about the AH-705 ATU from Icom.

Keep in mind this list will not include some excellent options from LDG, MFJ, and other companies simply because I haven’t used them in the field. Please feel free to add your comments if you have experience with other good options.

Mat-Tuner mAT-705 Plus

The Mat-Tuner mAT-705 Plus is the first external ATU on the market that directly pairs with the Icom IC-705 via a control cable.

Note that I had issues with the first iteration of the mAT-705 and could not recommend it.

The latest iteration–the mAT-705 Plus–is the ATU I can recommend.

Be careful if purchasing an mAT-705 used as you’ll want to make sure you’re getting the Plus version. The Plus version has a USB-C charging port on the front panel (seen in the photo above)–the original mAT-705 does not (it uses replaceable 9V cells).

Pros:

  • Perfectly pairs with the IC-705 for full CAT control
  • Wide tuning range
  • Tuning is fast and relatively quiet
  • Numerous memories making repeat matching rapid
  • Internal rechargeable battery
  • Rugged chassis

Cons:

  • Cannot be paired with other radios without modification (not recommended by the manufacturer)
  • At $220 US, it’s not the cheapest option
  • Because the IC-705 relies on CAT control for operation, if you leave the control cable at home or on a park bench, you will not be able to operate the ATU. (Pro)Fortunately, the CAT cable is a simple 3 conductor 1/8″ stereo patch cable.
  • Not weather-proof

Click here to see the AH-705 Plus in action and read a deeper review.

Summary: If you’re looking for an ATU to take full advantage of IC-705 CAT control, the mAT-705 Plus is a great option. The only significant disadvantage of this ATU is the fact that it only pairs with the IC-705 (or possibly other Icom transceivers with similar CAT control). In other words, you can’t pair it with other QRP transceivers you might own.

Click here to check out the mAT-705 Plus at Vibroplex, DX Engineering, Wimo, and Mat-Tuner.

Elecraft T1

The Elecraft T1 has been on the market for at least 16 years and is one of the most popular portable antenna tuners on the market.

Elecraft offers the T1 in kit form ($159.95) and factory assembled/tested ($189.95).

The Elecraft T1 has a CAT control port that has been used with the FT-817 in the past. Elecraft recently announced that they will also produce an IC-705 CAT cable that will allow full pairing with the IC-705 transceiver (much like the mAT-705 Plus above). 

To be clear, though, the T1 doesn’t need a control cable to function: simply press the TUNEe button for one second, then key your transceiver.

Pros:

  • Very wide tuning range
  • Soon it will have an IC-705 CAT connection cable option
  • Uses common 9V battery that is easy to replace in the field. (Con) Not internally-rechargeable like the mAT-705 Plus.
  • One of the most compact automatic ATUs on the market
  • Pairs with any 0.5-W to 20-W transceiver covering the 160-6 meter bands
  • FT-817 Remote-Control Option

Cons:

  • Front panel buttons need protection while in your pack to prevent accidental pressing that will deplete the battery. I 3D-printed this simple cover that works brilliantly.
  • Not weather-proof

Summary: The Elecraft T1 is my personal favorite. Since the T1 pairs with any QRP transceiver, I love the flexibility. The T1 has also been on the market for ages and is a solid, safe choice–we know longevity is benchmark. I’ve never been in a situation where the T1 couldn’t find a reasonable match.

I will certainly test the new IC-705 control cable option when it is released in the near future–stay tuned.

Click here to check out the T1 at Elecraft.

Icom AH-705

Photo by Icom Japan

Disclosure: I have not tested the AH-705 yet, but Icom plans to send me one on loan for review once available in North America.

We do know a bit about the AH-705  because Icom has published details/specifications and some users in Japan have already received units from the first production run.

The AH-705 is Icom’s custom ATU designed to perfectly pair with the Icom IC-705 via control cable. If you want an all-Icom setup, this is it.

Pricing in US dollars is TBD at time of posting, but the announced retail price is $350 .

Pros:

  • Perfectly pairs with the IC-705
  • Wide tuning range
  • 2-way power sources using alkaline batteries (2 x AA cells) or external 13.8 V DC
  • IP54 dust-protection and water resistance construction
  • Could (potentially–?) be permanently mounted outdoors at the antenna feed point as a dedicated remote tuner

Cons:

  • In terms of overall size, the AH-705 appears to be the largest of the portable ATUs mentioned here
  • It doesn’t appear AA batteries can be recharged internally
  • The AH-705 may (we don’t know yet) only work with the IC-705 and possibly similar Icom models
  • The maximum power handling of the AH-705 is 10 watts–if you use other transceivers (if that is even possible) you would have to be extremely careful with power settings.
  • The AH-705 is pricey if the actual retail price ends up being near the projected $350 mark. Hopefully, it’ll be much less than this.
  • Like the mAT-705 Plus, the AH-705 will require a control cable for operation. (Pro) Of course this means it pairs perfectly with the IC-705 and can follow frequency changes without RF sensing.

Summary: Keep in mind, I have not tested the AH-705 yet, so this is only based on announced specifications.

The strongest selling point for the AH-705? Since the AH-705 is designed to be dust and weather resistant, it could be mounted at the antenna feed point. At home, perhaps it could act like an externally-mounted, remotely-controlled antenna tuner. I’m not sure what the maximum length of the control cable could be, but Icom Japan even lists a 16 foot control cable as an accessory. Of course, you would still need to follow Icom’s guidance about protecting the antenna, transmitter and control cable connection points.

The biggest negative to me is the size. Just check out how large it is compared to the IC-705 in this video. It’s still very portable, but the other ATU options above are much smaller.

Still: if the AH-705 is great at matching antennas and the price ends up falling below the $300 point, I’m sure it’ll be a very popular ATU.

For more information about the AH-705, check out the product page on Icom Japan’s website. I will test a loaner AH-705 in the field this year.

Emtech ZM-2

Another option often overlooked are portable manual antenna tuners. I’m a big fan of the Emtech ZM-2 which is offered both in kit ($62.50) and factory assembled/tested form ($87.50).

It is a manual tuner, so requires manual input to find a match. While it’s not as easy as push-button tuning, it isn’t complicated either.

Here’s my routine:

  1. I set the top right switch to “GROUND” if using coax feed line and “LINK” if using a balanced line.
  2. Set the added capacitance switch “ADD” to “0”
  3. Set the TUNE/OPERATE switch to OPERATE
  4. I set both capacitors to middle positions (6 on the scale)
  5. Tune to AM or SSB and listen to the noise floor as I tune the variable capacitors to maximize the noise level. I typically start with the left capacitor, maximize it, then maximize the right capacitor
  6. If the antenna is particularly challenging, I might add 250 or 500PF via the ADD switch
  7. Set the TUNE/OPERATE switch to TUNE
  8. In CW mode, I key down and make fine tuning adjustments with the variable capacitors to make the red tuning LED turn off (high SWR makes the red LED illuminate)
  9. Set the TUNE/OPERATE switch to OPERATE and hop on the air! (Often, I’ll double-check the SWR on my transceiver).

This sounds complicated, but once you’ve done it even two or three times, it becomes routine. I’ve yet to find a wire antenna the ZM-2 can’t match–it’s a very capable tuner.

Pros:

  • The most affordable option listed here
  • Very wide matching range
  • Portable and very lightweight
  • Requires no batteries for operation
  • Mechanically simple
  • Reliable

Cons:

  • Although not complicated, there is a small learning curve involved
  • Each time you change bands, you will need to manually re-tune the ZM-2
  • Not as fast and hassle-free as an automatic ATU
  • Not weather-proof

Summary: I carry the ZM-2 with me even if I plan to use an automatic portable antenna tuner. If my auto ATU loses power for some reason, the ZM-2 will always rescue me. Plus, it’s just as capable of making tough matches as the ATUs above.

I also love using the ZM-2 to match antennas for shortwave broadcast listening outside the ham bands.

Even if you buy an automatic ATU, I would still encourage you to buy a ZM-2 as a backup.  It’s affordable, reliable, and very handy.

Click here to check out the Emtech ZM-2.

What are your favorite portable ATUs?

As I mentioned above, these choices are just a small selection of what’s actually available on the market. Please share your favorite portable ATUs and experience by leaving a comment!

POTA Field Report: Lake Norman State Park (K-2740) December 14, 2020

Monday afternoon (December 14, 2020), after completing a long to-do list of errands, I found myself with a chunk of free time in the late afternoon. Of course, I like to fill free time with radio time, so I packed the car and headed to one of my favorite spots: Lake Norman State Park (K-2740).

I love Lake Norman because it’s only a 35 minute drive from my parents’ house (where I was that Monday) and it’s nearly ideal for POTA because they’ve a number of picnic tables widely spaced, and lots of tall trees–a perfect spot for wire antennas. It’s also a quiet location and has good “POTA Mojo”–meaning, I’ve never had difficulty racking up contacts there.

Gear:

I was the only person at the picnic area of Lake Norman that afternoon. No surprise as it was after 3:00 PM local and temps were on a fast downward trend after a front moved through earlier in the day.

You may be able to see the Emcomm III hanging in the tree.

I used my arborist throw line and deployed the Emcomm III Portable antenna with ease.

On the Air

I hopped on the air around 21:30 UTC and started calling CQ POTA. The Reverse Beacon Network (RBN) spotted me and the POTA website auto-spotted me under a minute. Within ten minutes, I logged 8 contacts on 40M.

I then moved to 20 meters and worked an additional 5 contacts within 15 minutes.

Since I had worked a total of 13 stations, I had three more than needed for a valid POTA activation.

Since I was using the amazing Emcomm III Portable random wire antenna, I decided to move to 160M just to see if anyone work work me on the “top band.”

To be clear, 160 is one of the least active bands in POTA for obvious reasons: few ops care to deploy an antenna that can tune up on 160M, and few POTA hunters have an antenna at home to work the Top Band. Although it’s not as efficient as a resonant 160M antenna, the Elecraft T1 and mAT-705 easily tune it and get a great match.

I called CQ for a few minutes on 1810 kHz in CW and N4EX replied. Woo hoo! My first 160M POTA contact as an activator.

I then moved up to the phone QRP calling frequency of 1910 kHz and called CQ for about 10 minutes. No dice. Since I spotted myself, about two stations attempted to make contact, but unfortunately, my five watts just couldn’t be heard.

I checked the time at this point and it was 22:30 UTC. The sun was setting over Lake Norman, so I started packing up.

It was then received a text from my buddy Mike (K8RAT). The message read, “80M?”

I thought it might be fun to work Mike on 80M, so I re-connected the antenna and tuned up on 3538 kHz.

I think I called CQ once, and Mike replied with a strong signal. We had a nice exchange and when we sent our 73s, I heard a few stations calling me. Of course…the RBN picked up my CQ for Mike and the POTA site spotted me.

To be clear: it’s next to impossible for me to cut an activation short when I have hunters actively calling me, so I started replying.

Getting late…

Turns out, 80 meters was on fire. In 15 minutes, I logged 17 more stations–from Florida to Ontario–with 5 watts.

Next thing I know, it’s dark. Like, pitch dark…

My iPhone struggled to make this photo look brighter without the flash engaged.

Side note: someday, remind me to write a post about how one of my earliest National Parks On The Air (NPOTA) activations carried on until it was pitch dark outside and how that one activation forever changed how I pack my gear. In short: if you’re in the field and you aren’t intimately familiar with your gear and how its packed–even if you have a headlamp–there’s a good likelihood you’ll leave something behind.

It then hit me that Lake Norman State Park closes at sunset in the winter.  Doh!

Friendly park rangers

I finished my last exchange (with W3KC) and sent QRT despite a few others still calling me.

 

As I quickly powered down the IC-705, I noticed a truck pass by slowly on the road behind me. He drove to the end of the road then turned around and stopped behind me. I knew it was a park ranger doing final rounds.

He walked down to my table with flashlight in hand and I greeted him with an apology as I quickly packed up my gear. He was incredibly kind and encouraged me to take my time. He also saved me a trip to the car to grab my headlamp by illuminating the area with his Maglite flashlight/torch.

The park ranger asked a number of questions about ham radio, POTA, and the equipment I was using as I packed up. He told me he’s always found it fascinating and had met other radio amateurs at the park doing activations. I gave him my contact info and I hope he considers checking out the world of radio.

Because I’m meticulous about how I pack (again, lessons learned from the past) I had no issues in low light and left nothing behind.

I drove out of the park at exactly 6:00PM which is the park’s closing time. I was happy, at least, that I hadn’t delayed their closing!

All-in-all, it was a very fun activation–so much fun, I lost track of time. I logged 30 stations all over North America on four bands with 5 watts.

Have you ever found yourself operating and packing up in the dark? Any stories to share or advice? Please comment!