A human on earth. Ask me about weird tech. Bonus points if it radiates.

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Joined 1 year ago
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Cake day: June 23rd, 2024

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  • If you are on a budget (which I guess you are): Get a cheap NanoVNA or similar device. <50€ straight from China. Or get a used SWR meter / antenna analyzer from the usual places (fellow hams, internet, flea markets). It will save you so much trouble, and it is really handy to have one. If you don’t, you can still do it the old-school way of receiving a known signal and simply looking at the outcome. But for that you need a known signal (or generate one). A friend with a radio, for example. Or a broadcast station. Or some local activity.

    I built a mag-loop out of tinfoil and duct tape to try out an idea once, because that was faster than getting CST Studio to accept it. It works, because of course it does, but be warned that contact resistances are a bitch.




  • 10W at 2m, 70cm and 10m. Except for the 10m, which I have never heard anyone use (*), that fits pretty well with the idea of giving high school kids an aliexpress handheld to get them into STEM.

    The ugly part is, you need to do the same regulatory and legal questionnaire that you need to do for the larger licenses.

    “N Lizenz” in Germany, for reference

    (*) I just remembered that 10m is basically CB, but Ham. So if you find/inherit an old CB radio and want to experiment, it might be a really cheap way into the hobby.