From: spamtrap42@jacob21819.net   
      
   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.   
      
   --   
   Robert Riches   
   spamtrap42@jacob21819.net   
   (Yes, that is one of my email addresses.)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)