From: tnp@invalid.invalid   
      
   On 25/12/2025 03:25, Robert Riches wrote:   
   > On 2025-12-24, mm0fmf  wrote:   
   >> On 11/12/2025 21:18, Carlos E.R. wrote:   
   >>> Home made with a box of Pringles. just google for "pringles wifi antenna".   
   >>   
   >> Also Google cutoff frequency and see that the Pringle tube is too small   
   >> in diameter to be effective at 2.4GHz.   
   >>   
   >> Of course, designs on the internet do not have to follow the laws of   
   >> physics! :-)   
   >   
   > If you need a different diameter and know what diameter you need,   
   > any decent hardware store or home improvement big-box store in   
   > the US and perhaps elsewhere will have a wide assortment of sizes   
   > of PVC, ABS, and metal pipes and round conduits.  Some adhesive   
   > and copper foil would seem likely to be useful for making the   
   > plastic types useable.   
   >   
   If I felt that a design of any sort could be connected to a  Pi Pico W I   
   would 3D print it.   
   But in the end the simpler approach was to create a wifi point higher up.   
      
   Signal strength varies wildly, but enough transmissions get through...   
      
   --   
   "Strange as it seems, no amount of learning can cure stupidity, and   
   higher education positively fortifies it."   
      
       - Stephen Vizinczey   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)