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   RBERRYPI      Support for the Raspberry Pi device      21,939 messages   

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   Message 21,705 of 21,939   
   Lars Poulsen to All   
   Re: More on wifi range - Pi PICO W Oil l   
   25 Dec 25 10:30:02   
   
   MSGID:  1ce00506   
   REPLY: <10ig6ej$rlld$1@dont-email.me> 9ca409da   
   PID: PyGate 1.5.2   
   TID: PyGate/Linux 1.5.2   
   CHRS: ASCII 1   
   TZUTC: 1100   
   REPLYADDR lars@beagle-ears.com   
   REPLYTO 3:633/10 UUCP   
   [Folloup-to alt.unix.geeks]   
      
   > On 11/12/2025 21:18, Carlos E.R. wrote:   
   >> Home made with a box of Pringles. just google for "pringles wifi antenna".   
      
   On 2025-12-24, mm0fmf  wrote:   
   > 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! :-)   
      
   As a wireless applications engineer, I have always shaken my head   
   at the pringles can antenna, which if well made can have a gain up   
   to at most 8 dBi or so. For less than $50, you can buy a professinally   
   made flat patch antenna with 8 dBi gain at L-com.com. Apparently, you   
   can find used ones on eBay for under $30, but why take the risk?   
   If you need circular polarization, it will be closer to $75.   
   --    
   Lars Poulsen - an old geek in Santa Barbara, California   
      
   --- PyGate Linux v1.5.2   
    * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)   
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