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@mcdanlj@social.makerforums.info
2025-06-05 03:20:55

#AmateurRadio Field Day is coming, and I am but a baby ham who wants to try to work #CW on field day, but would like a little practice first.
Morse Walker has an

Morse Walker
Morse Walker is a CW pileup trainer with modes such as POTA, SST, and CWT, plus beginner-friendly features, including adjustable speeds and Farnsworth spacing.

@mcdanlj@social.makerforums.info
2025-06-01 02:25:20

Baby's first unun!
My #AmateurRadio journey continues with making some of my own equipment...
I wanted to be able to connect either an EFHW or an EFRW to my KX3, but move the actual antenna away from the radio, so that I can POTA with other people close enough to talk, while keeping the antennas for the different out of each others' near field so they don't interere. To …

Partially-assembled unun. A nut on the upper right is connected to the coax shield, and is connected to a brass screw on the right for a counterpoise connection. A blue 100pf capacitor is in the upper left of a purple 3d-printed box, connected between ground and the center terminal of the input. At the bottom, the 6th turn is tapped and run to another brass screw which provides the 9:1 random wire connection. A strand of red magnet wire goes up to the upper left over the blue capacitor; it conn…
The internals of the unun with kapton tape covering the torroid, and the 49:1 antenna connection brass screw in the lid at the upper left.
The assembled unun with two wires attached. At the top is a wire next to a ground symbol on the side of the 3d-printed box. This wire is the counterpoise. On the lower right is another wire connected to the side of the box. This is the random wire connected to the 9:1 antenna connection. At the lower left, in the middle of the lid, is the antenna connection for an end-fed half-wave antenna. Each of the terminals uses a heat-set insert as a finger nut to connect the antennas.
@mcdanlj@social.makerforums.info
2025-05-29 02:34:41

In the #AmateurRadio world, I'm a heretic because I use XT60 instead of PowerPole. (I do carry bidirectional adapters just in case.)
Tonight, I remembered that I have some "decoy boards" for 12V and 15V USB PD. I discovered that I could solder them directly to XT60 connectors in order to use USB PD power banks as field expedient power sources, thanks to the pitch of the connec…

@mcdanlj@social.makerforums.info
2025-05-27 00:51:46

Last fall, when I got my #AmateurRadio license, I got an inexpensive VHF handheld and expected to want to talk voice, and maybe later digital modes. I wasn't going to touch morse. After a few weeks of listening to repeaters ID in morse code, I caved and started trying to learn morse. I bought an HF rig, and didn't end up using VHF much.
Tonight, another ham in the family joine…