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#amateurradio

82 posts71 participants7 posts today
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Michael K Johnson

The second beta release of my #HamRadio #MorseCode single-paddle key is out. The spring weights have been adjusted based on some feedback. Each key has an identifier associated with the weight on the bottom to make it easy to tell them apart. There is now a separate mounting plate for a clipboard or forearm plate like Dan WY3O brought to the RARS meetup.

It's not actually necessary to use ring terminals, especially while experimenting. You might want them on a final version, but while testing, bare wires under the lock nuts and center screw are probably good enough. If I were carrying this POTA or SOTA, though, I'd want the ring terminals for durability.

I'm eager for feedback, and if I get time to print off a new batch tomorrow, I might bring a set to RARSfest Saturday.

Screen shot of CAD model of key mounted on swivel mount for clipboards, forearm boards, or desks
#AmateurRadio#CW
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Feorlen

Today my #GMRS group participated in a #LarimerCounty emergency communications drill.

We ran a net on our repeater with simulated road updates and a medical emergency. Our #ham operators passed traffic to the EOC and back.

There were several neighborhood groups participating but I believe we were the only GMRS. Our weekly practice net really helps it go smoothly.

Ok for real I’m going to go through more boxes and find my old HT so I can practice both sides.
#AmateurRadio

Public
Doughnut Lollipop 【記録係】:blobfoxgooglymlem:

Well, I tried building my own ¼-wavelength monopole with the metal railing and everything it's attached to as the ground plane, but it didn't work very well. :blobfoxgooglycry:

I'm targeting 6-meter with this, but I thought it'd make sense to use the middle of the band (52 MHz) as the target, so I did (C / 5200000000) / 4 to get the length of 1.44 meters.

What did I do wrong? :blobfoxsad: #HamRadio #AmateurRadio

Public
Neil E. Hodges

Well, I tried building my own ¼-wavelength monopole with the metal railing and everything it's attached to as the ground plane, but it didn't work very well. :(

I'm targeting 6-meter with this, but I thought it'd make sense to use the middle of the band (52 MHz) as the target, so I did (C / 5200000000) / 4 to get the length of 1.44 meters.

What did I do wrong? :( #HamRadio #AmateurRadio

Public
Stu Gott

Greetings Elmers! Seeking advice on buck converters.

I ordered a QRP Labs QMX. For this model, they are extremely specific that it must not be powered by more than 12V. This means a LiFePo4 battery is out. Unless of course I put a buck converter inline to ensure only 12V goes to the QMX. Since it's a QRP radio, it consumes roughly 1A max current.

Any advice on what buck converter options make the most sense here?

#HamRadio#AmateurRadio#hamr
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