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this post was submitted on 23 Jul 2026
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Looks like I'm aiming pringles can directional antennas at McDonalds again like the 00's.
pringles can is too small, you need a can 8cm in diameter minimum. 400ml cans won't do but bigger ones, 800ml, 1200ml will work https://www.wikarekare.org/Antenna/WaveguideCan.html
Old folgers coffee can it is.
For 2.4GHz *
pringles can would work okay for 5ghz but making feed element for that band would be hard without expensive test equipment
NanoVNA's are pretty cheap for ~$100-200, though that being said I've only looked at them for ~1GHz work
I've got one sitting by my TV, haven't ever used it. I'll fiddle with it today to see how high it can measure.
some variants go above 2.4GHz but going over 5GHz is entirely different thing