Thomas Does Radio or Something

Being contemporaneous for a new achievement and experience: 6m auroral propagation with a QSO at 5W! With the G5 storm observed before 0Z, I built myself a more durable 6m full-wave loop and set out to experience some new amateur radio. Heading out to a local hilltop with a plan! Initial deployment of the 6m loop on my fiberglass pole for a tuning check and preparation for operating

As previously discussed, the BK4819 simplex FM transceiver chip with specified coverage of 18-660 and 840 to 1300 MHz covers a lot of Region 2 amateur radio bands with generally accepted FM operation: 10 m, 6 m, 2 m, 1.25 m, 70 cm, 33 cm, and 23 cm. The most popular models of amateur-oriented HTs using the chip generally only cover the popular VHF/UHF split with 2m and 70cm (and wide enough filters to support nearby business/public safety bands). How this is implemented varies in cost, complexity, and potential for effective modification. Of course, it's not really a modification if it's an actual product, but more on that further in.

For the QRPer's Field Radio Kit Gallery , this is my KX3 and speaker wire in a camera bag activation kit. This kit is the continuation of the equipment I used for my Maine ATNO expedition and other activities on that return to my parents almost a year ago. Primarily, it's a change in bags and an improvement of the audio connection options for more sustained activations. Writing up this kit for the gallery also will probably be an incentive for further change. With how loosely packed it is, there's space for options! You can see this kit in action on my recent trail activation . The bag packed and ready for an expedition, even if just a little ways away.

With an Elk Antennas 2M/440L5 providing me directional operation on 2m and 70cm and a couple handheld rigs that include 1.25m, I wanted more than just a stock whip to operate with those rigs. Since I have access to scraps of copper refrigerant tubing at the day job from test/prototype systems, I thought it'd be a great material to build with. To put it briefly, the results have been fantastic to start. As initially assembled on the terribly scientific test stand of an empty recycle bin.

The afternoon after my sky picture , I went out to one of Wisconsin's newer POTA entities (Capital State Trail, K-9773) after work to pick up another activation. One of my hunted P2P contacts included a request for a station setup picture, so this is for VA5MUD who was operating from VE-0111. This was a quick activation cut right at 10 QSOs due to the arrival of the anticipated rain. Antenna setup using the trail emergency locator marker as a support for the fiberglass pole.

The Quansheng UV-K5 ( product page archive ) handheld transceiver has been notable in cheap amateur radios of 2023 by using both a wideband FM chip BK4819 ( product page archive ). With support of 18-620 and 840-1200 MHz half-duplex with 6.25/12.5/20/25 kHz channel spacing, this puts the chip in the range of five ITU Region 2 amateur bands (10m, 6m, 2m, 1.25m, 70cm, 33 cm) and spitting distance from a sixth (23 cm). Presumably hitting 4m and the rare 8m would be within reason as well. The easily hackable firmware indicates at least nominal receive capability up to 1300 MHz, though!

I found the sky outside particularly striking last week. Just to get the blog rolling again, I'll put this here as non-radio-related content for your enjoyment. Sky over Fitchburg, Wisconsin on the morning of 2023-10-24. Shot with Samsung Galaxy S10+, unprocessed JPEG.  

Last weekend was Winter Field Day 2023 and I caught the tail end of it to combine with some Parks on the Air at my favorite Governor Nelson State Park ( K-1452 , wiki ). Seven inches of fresh powder awaited between me and the shelter I activated from (and, of course, on the car before I left). Operating position looking across Lake Mendota to downtown Madison including the capitol

One of my objectives for the good weather in Maine during my holiday travel was to get out to the convenient and interesting parks in the area. As highlighted by W1DED 's map documenting POTA MAINE , there are a couple of Midcoast Maine parks that had no activations ever by 2022: both the Durham State Forest and Ducktrap River Wildlife Management Area. The reason? They're poorly documented locations with no convenient drive-up-and-know-you're-there place. The WMA even overlaps the local Ducktrap Preserve, but you'd have to figure out what that meant and where to hike. And the forest, well, the forest barely even seems to exist on the internet by that name! No official state information and just lots of OpenStreetMap references. I looked to take on the forest to understand where it was, what the access looked like, and then get out there and put the park on the air.