Tag Archives: VK3IL Pressure Paddle

Field Reports, Morse Code, News, Portable, POTA, QRP

Giving the Xiegu G106 a thorough workout at Fort Dobbs!

7 Comments

On Thursday, February 9, 2023, a rare opportunity opened up for me: a 3.5 hour activation window–!

I was visiting and helping my parents in Catawba County, NC, so considered the park options, almost all of which are within a 35-45 minute drive.

I thought about fitting in two shorter park activations that day, but it has been so long since I’ve had the opportunity to simply hang at one park and play radio for more than an hour, I chose the extended activation option.

Although the forecast was for clear skies that day, a front was moving through that afternoon and the skies were overcast with gusty winds. I could tell rain was a very real possibility, so I chose a site with a picnic shelter to make things a bit easier.

Fort Dobbs State Historic Site (K-6839)

Fort Dobbs was a no-brainer: not only was it the closest park (thus less travel time eating into my on-air time), but the staff there are very POTA-friendly, the site is quiet, and they have an excellent shelter that I suspected (due to the dodgy weather) would be unoccupied.

When I arrived on-site, I checked in at the visitor’s center to make sure the picnic shelter hadn’t been reserved. Fortunately, they said I could have the shelter all to myself!

I had a number of radios in my car and decided en route that I would use the Xiegu G106 once again.

I packed the G106 in a waterproof Husky radio gear box I keep in my car trunk/boot. I grabbed it and my Spec-Ops EDC pack and carried it to the picnic shelter.

My plan was to pair the G106 with MW0SAW’s 40 meter EFHW antenna.

This would give me two resonant bands (40 and 20 meters) so there’d be no need to connect an external ATU. Continue reading Giving the Xiegu G106 a thorough workout at Fort Dobbs! →

Field Reports, News, Portable, POTA, QRP

Speedy POTA: An impromptu post-hike activation with the Elecraft KX2 and AX1

17 Comments

On Friday, January 27, 2023, I dropped off one of my daughters at the library for a creative writing session.

Hazel was along for the ride, so we decided to hike on the nearby Mountains To Sea Trail (MST) while my daughter was in the meeting.

During the hike, I realized that I should have taken my field radio pack along because it would have been so easy to activate both the MST and Blue Ridge Parkway as a two-fer.

Instead, Hazel and I enjoyed our hike and got back to the car with about 35 minutes or so to do an activation–including set-up, on-air time, and pack-up.  That would leave me just enough time to pick up my daughter at the library before they closed for the day.

Challenge accepted!

Because I had been using the Elecraft KX2 and AX1 recently, I had both packed in my Spec-Ops EDC backpack.  In theory–even filming a video at the same time–I knew I could probably fit in a whole activation with 25 minutes on the air. I only needed 10 contacts, and I’ve never been in a situation where the AX1 couldn’t achieve that goal.

Hazel and I grabbed my bag from the car, I started recording a video, and we made out way to the nearest picnic table at the Blue Ridge Parkway HQ parking lot! Continue reading Speedy POTA: An impromptu post-hike activation with the Elecraft KX2 and AX1 →

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

Pairing the Penntek TR-45L and Chelegance MC-750 on a swift POTA activation

6 Comments

Friday, January 6, 2023, was a beautiful day and my route took me within 10 minutes of South Mountains State Park (K-2753).

Of course, I had to activate it!

In truth, I had only a short window to do the activation, but I knew it would be seriously fun.

I’d packed my Penntek TR-45L and Chelegance MC-750 for the trip and was looking forward to pairing the two.

My TR-45L actually has the built-in Z-Match manual antenna tuner, but I wanted to, once again, configure the MC-750 as a resonant antenna (much like I did in my previous activation).

I also had my new VK3IL pressure paddle along for the ride and wanted to see how nicely it might work with the TR-45L.

If I’m being honest, it was a bit strange not to use a wire antenna at this particular park because South Mountains has some very large old-growth trees that are ideal for hanging antennas.

That said, I also had my choice of spots to deploy the MC-750 vertical. Continue reading Pairing the Penntek TR-45L and Chelegance MC-750 on a swift POTA activation →

Accessories, Field Reports, Kits, Morse Code, New Products, News, Portable, POTA, QRP, QRP Radios, Reviews, Videos

New Year’s Day POTA: New VK3IL Pressure Paddle, New FT-817/818 Narrow Filter, and New TPA-817 Pack Frame!

6 Comments

I try to start each year by doing a POTA or SOTA activation on New Year’s Day.

POTA actually issues a certificate for completing an activation on New Year’s Day so there are typically loads of activators and hunters working the bands. It’s an ideal time to play radio.

This year, we had a number of family activities on New Year’s Day, but I made a little time to fit in an activation during the late afternoon at my most accessible spot on the Blue Ridge Parkway: the Southern Highland Folk Art Center.

As with my last activation, I suspected I would be operating in the dark, so I brought my LED lantern along for the ride.

Although not intentional, this New Year activation had a lot of new-to-me stuff involved!

New VK3IL Pressure Paddle

The prior evening–on New Year’s Eve–while my wife and daughters were watching a classic movie movie marathon, I used the time to heat up the soldering iron and work through a few kits and projects that had been sitting on my desk.

One of those projects was a Pressure Paddle designed by David (VK3IL).

Michael (G0POT) sent me the Pressure Paddle circuit board and heat shrink via Andy (G7UHN) several months prior. [Thank you so much, fellas!]

To my knowledge, the VK3IL Pressure Paddle isn’t available in complete kit package, but it’s quite easy to source everything yourself.

On his website, David provides the Gerber files you’ll need in order to purchase the circuit boards from your favorite manufacturer (I’m a huge fan of OshPark here in the States).

Next, you simply need to order the components. Here’s the list assuming you’re using DigiKey:

  • Quantity of 2: 732-7579-1-ND (CAP CER 10000PF 10V C0G/NP0 0805)
  • Quantity of 2: BSS806NH6327XTSA1CT-ND (MOSFET N-CH 20V 2.3A SOT23-3)
  • Quantity of 2: 311-470KCRCT-ND (RES 470K OHM 1% 1/8W 0805)
  • Quantity of 2: 1738-SEN0294-ND (RP-C18.3-ST THIN FILM PRESSURE S)
  • Quanity of 1: Three conductor wire with a (typically) 3.5mm plug (note that I had one of these in my junk drawer)

Keep in mind: the components are surface-mount. If you’re not used to working with SMD components (ahem…that would be me) I suggest buying a few spares of each in case you lose or damage one or more during the build.

It also helps to cover the finished board in heat shrink not only to protect the board and make it easier to grip, but most importantly (if you’re me) hide your electrically-sound yet unsightly surface mount soldering job.

The build might have taken me 20 minutes.

New FT-817ND Narrow CW Filter

Some time ago, I purchased a second FT-817ND with the idea of doing full-duplex satellite work. I later realized I could be taking the second FT-817ND out to the field more often if I simply had another narrow CW filter installed, so I built one.

This New Year’s Day activation was actually the first time I’d taken this particular FT-817ND and its new narrow filter out to the field!

New Armoloq TPA-817 Pack Frame

Earlier this year, I also decided that I wanted to outfit my 2nd Yaesu FT-817ND with an Armoloq TPA-817 pack frame. The idea was to experiment with building a rapid-deployment field kit around it.

This is actually one of the big projects I’m working on in 2023. I’ve yet to sort out the antenna mount I’d like to use with this frame based on how I plan to deploy it. Continue reading New Year’s Day POTA: New VK3IL Pressure Paddle, New FT-817/818 Narrow Filter, and New TPA-817 Pack Frame! →